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BLAVOR Solar Charger Power Bank, PD 18W Fast Charging 20000mAh Solar Battery Bank with 4 Foldable Panels, Solar Powered Charger with Camping Flashlight Compass Carabiner, Compatible with Cell Phone

4.5 4.5 out of 5 stars 2,251 ratings

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Purchase options and add-ons

Connector Type USB Type C
Brand BLAVOR
Battery Capacity 20000 Milliamp Hours
Color Orange
Special Feature Waterproof, Shockproof, Dustproof, 18W Power Delivery, QC 3.0 Quick Charger, Super Bright Camping Light; Emergency Flashlight, 4 Panels Solar Power Bank See more

About this item

  • [Brand-Oriented & Outdoor Charger Pro]: With over ten years of experience in solar power banks, BLAVOR has already gained the favor and trust of millions of global users. BLAVOR only uses the highest-grade materials, to provide the most reliable and safe products to customers
  • [Upgraded Highly Efficient Solar Panel Charging]: 4 premium panels can produce 1.2A Max (300mA*4, under 25000Lux sunlight) current to recharge the power bank, 7X higher solar charging efficiency than the normal single panel solar battery pack. Perfectly meet your power needs outdoors
  • [USB-C PD & QC3.0 18W Fast Charging]: The unique PD 18W USB-C output can charge the laptop that supports PD protocol. The QC3.0 USB port supplies Max 18W output, 50% faster-charging speed, greatly shortness the time of recharging your device, and has zero damage to your devices
  • [Super Bright Camping Light & SOS Flashlight]: 3-level brightness adjustable camping light copes with different outdoor use environments. The 3 modes of LED flashlight include normal electric torch mode, SOS mode, and strobe mode. Light up the darkness and secure your night while in an emergency or the wild
  • [REAL-RATED 20000mAh Solar Phone Charger]: Real-rated 20000mAh high capacity, safer Lithium-polymer battery, 50% more cycling times than a normal Li-polymer battery. With a full charge it can recharge the iPhone14 4.6 times, Samsung S22 4.2 times, and the iPad Air twice
  • [Durable & Convenient Design for Outdoors]: IPX5 waterproof, dustproof and shockproof, with the compass and carabiner equipped, an ideal companion for outdoor enthusiasts. Three outputs (2 USB-A, and 1 bidirectional USB-C) support charging 3 devices simultaneously, flawlessly compatible with nearly all smart devices
  • [Industry-leading Warranty]: BLAVOR offers considerate and prompt pre-sales and after-sales customer services. We have firm confidence in our products. Any questions, please feel free to contact us, our professional team will give you a satisfactory reply within 24 hours.
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BLAVOR Solar Charger Power Bank, PD 18W QC3.0 Fast Charging 20000mAh Solar Powered Powerbank with 4 Foldable Panels, Type C Input/Output, Camping Light SOS Flashlight, Compass Carabiner

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BLAVOR Solar Charger Power Bank, PD 18W QC3.0 Fast Charging 20000mAh Solar Powered Powerbank with 4 Foldable Panels, Type C Input/Output, Camping Light SOS Flashlight, Compass Carabiner
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Price$58.99$59.99$59.99$29.99-36% $44.99
List:$69.99
$39.99
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Customer Ratings
Durability
4.3
4.3
4.5
4.5
4.3
For traveling
4.2
4.2
4.4
3.2
Charging power
4.1
4.1
4.2
4.4
Sturdiness
4.8
4.8
4.5
Sold By
BLAVOR
BLAVOR
BLAVOR
BLAVOR
AKESIN
HMY-US
capacity
20000 milliamp hours
20000 milliamp hours
20000 milliamp hours
10000 milliamp hours
43800 milliamp hours
42800 milliamp hours
connector type
USB Type C
USB Type C
18W Type C Input & Output; 18W USB-A Output;, 5V/3A USB Quick Charge Output; Micro USB
USB Type C
🏆Optimal Seller
USB Type C, iOS
number of ports
4
4
2
3
5
compatible devices
Smartphone, Tablet, Laptop
iPhone, iPad, Airpods, Android phones, Most USB charging mobile devices
iPhone, iPad, Airpods, Android phones, Most USB charging mobile devices
iPhone, iPad, Airpods, Android phones, Most USB charging mobile devices
Smartphone, Solar, Flashlight
Smartphone, Tablet, Smartwatch, Headphone, Camera
output current
3 amps
3 amps
3 amps
2.4 amps
3 amps
voltage
12 volts
5 volts of direct current
5 volts
5 volts of direct current
5 volts
5 volts of direct current
battery charge time
12 hours
7 hours
80 hours

From the brand

What's in the box

  • Solar Charger Power Bank
  • Carabiner
  • USB Cable
  • User Manual

  • Product Description

    blavor solar phone charger power bank external battery backup 10000mAh
    solar charger backup battery battery packs for camping

    BLAVOR power bank with foldable solar panels, juice up your devices anytime anywhere.

    No longer worry about power outages outdoors, an essential companion for your off-grid trips.

    WARM TIPS: The leather cover and rubber edge are not heat-resistant, therefore DO NOT place the power bank on overheated surfaces like flat rocks, cement floors, etc., and make sure the heat dissipation space is appropriate.

    solar charger power bank solar powered phone charger external battery bank backup portable charger

    The unique PD 18W USB-C output can charge the laptop that supports PD protocol.

    Reliable backup power charger, in case of an emergency power outage.

    3 outputs (2 USB-A, 1 USB-C) in total support charging 3 devices at the same time, with a high battery capacity, the power bank solves the need for charging when traveling with family and friends.

    sun powered phone charger military battery bank

    solar battery phone charger waterproof

    external phone battery with solar charger

    Built-in compass kit, guiding the direction for you, helping you through mountains and mountains.

    The carabiner can help hang the phone charger on your backpack, freeing your hands for carrying other necessities.

    2 USB-A outputs and a USB-C output provide flawless compatibility and optimal charging speeds for nearly all smart devices.

    portable charger waterproof rugged external solar power bank

    Three-mode LED flashlight: Strobe light, SOS light, and steady LED electric torch. Light up the darkness for you, it is a reliable tool for the outdoor night.

    Large-size camping light: 3 kinds of brightness intensities, soft light, strong light, and ultra-strong light. Free to switch the brightness, it helps you flawlessly deal with different usage scenarios.

    solar charger power bank solar powered phone charger external battery bank backup portable charger

    Shockproof: The power bank is designed with four extra buffer rubber corners, which frees your worry of fall damage while in the wild.

    IPX5 Waterproof: The waterproof silicone protective line can better protect the internal structure of the charger. The bottom rubber cover also protects the charging ports from rain, water, and dust.

    Dustproof: Rubber skin-feel oil coating process forms a protective film on the surface, preventing the charger from dust, and also making the touch more comfortable.

    Sturdy and durable design, the charger can withstand harsh outdoor environments. A Must-Have for outdoor activities.

    blavor solar charger solar charger power bank solar battery charger olar power bank 20000mah

    Package Contents: BLAVOR 20,000mAh Solar Charger*1, USB Type C Cable*1, Carabiner*1, User Manual*1.

    BLAVOR takes good care of all your potential worries, so you can rest assured with the purchase.

    Product information

    Warranty & Support

    Product Warranty: For warranty information about this product, please click here

    Feedback

    BLAVOR

    BLAVOR Solar Charger Power Bank, PD 18W QC3.0 Fast Charging 20000mAh Solar Powered Powerbank with 4 Foldable Panels, Type C Input/Output, Camping Light SOS Flashlight, Compass Carabiner


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    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    2,251 global ratings

    Customers say

    Customers like the charging capabilities of the power bank. For example, they say it provides a solid amount of charging power, and can fully charge in the sun. Customers are also impresseded with the quality, saying it's beefy, well built, and durable. They appreciate the built-in lighting, saying the light is super bright. Customers also like the value, saying its well worth the money. Opinions are mixed on the weight and solar panels.

    AI-generated from the text of customer reviews

    181 customers mention128 positive53 negative

    Customers like the charging of the power bank. For example, they say it provides a solid amount of charging power, it charges quickly with solar or plugged in, and it powers up a dead phone quickly. Some mention that it starts charging from the ambient light. That said, most are happy with the charging capabilities of the product.

    "...led light and the ports it offers are all great along with its power transfer speed...." Read more

    "...It is capable of charging your cell phone or other device provided it can use the USB or USB Type C charge...." Read more

    "...features a fold out 4 panel solar charger, that begins charging in fairly low ambient light, and gets stronger as the ambient light increases...." Read more

    "...I am assuming this is due to the converter being less efficient at higher currents, although I plan to be putting this in the back of my car to..." Read more

    157 customers mention129 positive28 negative

    Customers like the quality of the power bank. They say it's beefy, durable, and dependable. Customers also appreciate the strong LED and sturdy foam protection. Overall, customers describe it as an excellent piece of equipment and a very useful power bank with a flashlight.

    "...Design: I think this item is well designed and they have made pretty good use of the space available to make sure the item is not too bulky yet..." Read more

    "Love the design and versatility of this product. Looking forward to trying it out on my next camping trip." Read more

    "...Build quality seems good - the snap that holds the panels in place and the rubber cover over the charging ports is solid...." Read more

    "...This isn't cheaply made. I was looking for the right charger for something that will be the best of the best. I have found it...." Read more

    133 customers mention109 positive24 negative

    Customers like the performance of the power bank. They say the built-in lighting does well to light an area, the lamp is super bright, and it's perfectly fine for simple light use. The solar panel works well, although it takes some time to recharge. It provides a well enough focused beam to make sure you can see. The durable design, the solar pannels work as intended for emergency use, and the flashlight in front does a pretty good job in illuminating the way in. Overall, customers find it to be a useful product.

    "...Flashlights - The flashlight in front does a pretty good job in illuminating the way in front of you, as you can see in the pictures I have attached..." Read more

    "I got myself one and gifted one to a friend. It works great and folds nicely!" Read more

    "...The flash light and led camping light are also great. Recommend this product but keep in mind the time needed to charge with the solar panels." Read more

    "...The solar panels definitely work, but they don't charge the battery very quickly, but at their size and at this price point you couldn't expect..." Read more

    25 customers mention18 positive7 negative

    Customers like the value of the power bank. They mention that it's well worth the money, dependable, and worth its weight in gold.

    "...For about $50, this is pretty good value even if you think of this as some kind of bright solar light. :)" Read more

    "This charger/flashlight is worth every penny! I use for camping and when I deploy to emergency scenes. It's durable and reliable!..." Read more

    "...It comes with a small carabiner for hanging it from things. Very gimmicky and I would not trust it to hold this in place...." Read more

    "This unit is well worth the $ and is more dependable than most of our utility suppliers. Great buy and a must have for every home!..." Read more

    24 customers mention24 positive0 negative

    Customers find the power bank versatile. They say it's good for camping, with built-in solar panels, and worth taking on a camping trip. Customers also say it comes in handy during weekend trips or everyday use. They mention it'll be a great option for backcountry hiking and camping. Overall, customers say it’s an awesome battery pack for camping and emergencies.

    "...Overall, this is an awesome battery pack for camping and emergencies...." Read more

    "Lights work well, nice complement to survival package, but I bought with the extended panels thinking it would charge faster than what I've used in..." Read more

    "...Conclusion: This will be perfect for camping, road trips, groups at the beach, long weekend getaways...." Read more

    "...The full panel size camp light is blinding. Great for a few days out in the wilderness or when the unexpected happens at home!..." Read more

    18 customers mention15 positive3 negative

    Customers like the connectivity of the power bank. They mention that it has all connection ports, the LED light and the ports it offers are all great. They appreciate the multiple ports for charging and the solid solar capability. The USB-C port is both input and output, and it receives a solar charge. The ports are nicely tucked inside a rubber cover so you don't have to worry, and the rubber flaps on the charging ports mean that it doesn't overheat. It offers connectivity for most devices.

    "...Its led light and the ports it offers are all great along with its power transfer speed...." Read more

    "...- the snap that holds the panels in place and the rubber cover over the charging ports is solid...." Read more

    "...It has 2 USB out ports, and I was able to draw a hefty 3 amps combined from them, charging 2 phones at once...." Read more

    "...One thing I really like about this is that the USB-C port is both input and output, and it receives a solar charge inside my house on a cloudy day..." Read more

    43 customers mention23 positive20 negative

    Customers are mixed about the weight of the power bank. Some mention that it's small light weight, very portable, and great for packing light, while others say that it’s heavy. That said, some say that the three additional panels make the charger much bulkier.

    "...pretty good use of the space available to make sure the item is not too bulky yet ruggedized to handle bumps while you are on the road...." Read more

    "...With that being said, it is bulky, but the three additional panels covered in leather make it feel like it has really good quality...." Read more

    "...the "gift receiver" they absolutely love it said it's the best portable solar charger they have ever had...." Read more

    "...While it may be a bit heavy for backpacking, it is nice that it provides a solid amount of charging power..." Read more

    16 customers mention9 positive7 negative

    Customers are mixed about the solar panels. Some like it because it has 4 solar panels and fast charging USB type C as, while others say that the power portion wasn't at all impressive, the solar function leaves much to be desired, and that it's almost useless.

    "...actually a huge positive for me, and this bank features a fold out 4 panel solar charger, that begins charging in fairly low ambient light, and gets..." Read more

    "...The solar function leaves much to be desired...unless it's placed in Strong, Direct sunlight it will actually slowly drain power...." Read more

    "...I particularly like the fact that the Solar Charger has four solar panels as opposed to some single panel models which helps charge the internal..." Read more

    "...-Takes longer than 8 hours to fully charge-Solar charge is really a last ditch measure, and requires many hours of sustained sunlight..." Read more

    Very versatile power pack for camping and emergencies...
    5 Stars
    Very versatile power pack for camping and emergencies...
    This is a convenient power pack that tries to build everything in one. USB power, compass, a camping light, and a mini flash/strobe light. It is rugged and the attached solar panels can be easily folded up and secured with a button. Unlike many cheaper solar power packs out there, this one actually supports USB-C Power Delivery up to 18W.Here's my take on this item:Design: I think this item is well designed and they have made pretty good use of the space available to make sure the item is not too bulky yet ruggedized to handle bumps while you are on the road. The ports are nicely tucked inside a rubber cover so you don't have to worry about the ports getting wet when it is on your backpack and it is raining outside (it comes with a carabiner clip with a keychain ring to attach to both the unit and your backpack - see picture).Ports - On the USB ports, they support a wide range of different charging protocols: Apple 5V/2.4A, Samsung 5V/2A, BC DCP 5V/1.5A, QC2 5/9/12V, QC3, FCP, MTKPE 1.1 PE2.0. Although one of the ports is labeled blue, the black one also supports QC2/3 (there is no difference between the ports). That said, only one port can be used at any given time for quick charge based protocols to engage, otherwise, both ports would be available at 5v only (most likely because they share the charging circuitry on the USB ports).The bidirectional USB-C port supports PD3.0 5V/9V/12V PDOs at 2.4A/2.0A/1.5A, respectively. Also, it supports Apple/2.4A and BC DCP 5V/1.5A. This is nice because most battery packs around this range would only support a dummy USB-C port that operates at 5v only and would not allow Google Nexus devices to charge beyond 5v. Having PD fixes that issue.Note that since the ports are tucked inside the rubber cover, there isn't a lot of clearance for direct plug-in USB devices that are wide-sized. In those cases, you may need some kind of USB extension or right-angle adapter for the plug to fit properly. Most devices, however, use a standard USB cable to connect so this shouldn't be an issue for most devices (you can see that I have to plug a tester on top of another tester because that second tester was a bit too wide to fit into the mouth of the rubber casing).Charging - Charging is fairly straightforward. You have the option of using either the Micro-USB port or the USB-C port. When using the Micro-USB port, you are limited to 5v/2.4A unless your chargers support the Huawei FCP 9v protocol (although many times the battery pack ends up charging at around 2.7A or so if your charger has good voltage regulation and the voltage remains high). Most chargers that are made in China to support QC2 generally also support FCP, although pure QC2/3 chargers will not trigger 9v charging. This is the same when using the USB-C port, although the battery pack would request PD @ 9v as well as FCP when it is available. When charging at 9v, the amperage is limited to 2A @ 18W.Maximum Discharging Current - Testing the maximum current at the various voltage levels offered by this battery pack without significant voltage losses, I got 5V/3A, 9V/2A, 12V/1.5A. This is pretty much within the stated specifications, except that I was able to exceed the 5V/2.4A rating slightly until the 3A mark.Load voltages - Under no load, the voltages were recorded as 5.08v/9.12v/12.11v. This is good since they were a little higher to allow for some cable resistance. As you can see, the battery pack was able to maintain a very stable voltage even at load (4.97v/3A, 8.92v/2.06A, 12.01v/1.51A).Flashlights - The flashlight in front does a pretty good job in illuminating the way in front of you, as you can see in the pictures I have attached with the dark kitchen. The small flashlight was directional, so it illuminates in the immediate vicinity in front of you, but not around you. The camping light, on the other hand, is much brighter and my first reaction when I turned that on was - wow! On high brightness, the kitchen looked as if I turned the lights on, whereas on low/medium brightness it's only slightly dimmer than the high brightness (see pictures). This makes this a very good tool while working in a dark garage, or simply keeping in your car in case of an emergency.Auto on/off: The battery pack turns off after 30 seconds of low/no load (by reducing the output voltage to ~2v). This means you do not have to manually turn on the battery pack to start charging anything that you start plugging in since the device senses this and restores power at the appropriate level. This offers convenience, although at the trade-off of some standby power.USB passthrough charging: This battery pack supports true passthrough charging. If a 9v input is already engaged, it disengages and falls back to a 5v input source. The battery pack then passes the 5v input from the charger to its output ports while simultaneously charging itself. Because of the true pass-through function, the output voltage is no longer regulated by the battery pack, but rather than the voltage source (e.g. charger). For that reason, the output voltage can drop to around 4.5v when the battery pack is charging from the source at high currents. Adding device load while the battery pack is charging is additive to the input current, and if you have a very good charging cable (e.g. a 1ft USB-C to C 5A cable), the current can reach 5v/3A when the other device is plugged in (the enclosed USB-A to USB-C 2.0 cable charges at around 2.2A when I tested). The battery pack also seems to have a protection function that prevents the pass-thru voltage from getting too high due to a malfunction of the charger. In this case, it looks like the battery pack shuts off charging when the output port reaches approximately 5.45v (using a charger source of approximately 6.40v while charging at around 2.67A). This is a good mechanism to prevent your device from frying if the charger somehow malfunctions and continues to provide 9v QC even when the battery pack did not ask for it.Capacity Testing: The discharge test yielded a real capacity of approximately 65.04Wh (~88% efficiency) at 5v/2.3A. This is quite efficient given the high current. On the other hand, charging at 5v/2.7A required about 94.92Wh of energy (~78% efficiency) without any supplemental sunlight. I am assuming this is due to the converter being less efficient at higher currents, although I plan to be putting this in the back of my car to gather sun while it is out so charging efficiency isn't a big problem to me.Solar Charging: The charger's solar indicator (the green light that is next to the battery status indicator) is quite sensitive, and turns on even at the slightest of sunlight. However, it is important to note that the panels all together can only produce 1.2A of current under intense sunlight (theoretically 6W max). Assuming the panels produce 82% of the theoretical maximum, and another 80% of that energy is used to charge the battery, that means the panels are adding about 3.94W of power to the batteries under intense sunlight.Assuming the energy required is 25% above the nominal capacity value (92.5Wh), this means approximately 23.48 hours of intense sunlight is required to fully charge the battery from empty to full.If you were to leave the battery pack in a sunny place all day long without moving it (assuming ~5.5 hours of intense sunlight), this would mean it would take slightly more than 4 days to charge it under these conditions.If you are on the go and moving between shady and sunny areas, you may only be exposed to intense sunlight (or equivalents of) for about 1.5 hours or so. In this case, the time to fully charge a depleted pack increases from 4 days to a bit more than 2 weeks.And since cloudy days yield very little current (generally 5-10% of the power generated compared to the intense sunlight power), you pretty much have to wait forever for this to charge. Assuming the average cloudy day yields approximately 8% of the power relative to a sunny day, that would mean 0.3152 watts, or 293.45 hours of equivalent light to fully charge. Even assuming you can get 7 hours of this equivalent light, the battery pack will still take over 40 days to fully charge.Now, this is not to say solar charging is useless, but you should have a realistic expectation that the panels are there to supplement the energy provided by a charger while you are on the go, versus replacing the need of charging the pack from the wall completely (unless you want to throw this in the sun and not move it for a few days). If you are thinking that just throwing this near the window on a cloudy day would allow you to charge your phone forever given the infinite potential given by sunlight, then you are probably buying the battery pack for the wrong reason.If I were to go camping with the battery pack and charge my OnePlus 6T fully once a day (which has a 13.69Wh battery) and leave home with the battery pack completely charged, the battery pack would charge my phone a little bit over 4 times/days (assuming a charging efficiency of 88%). Assuming I am getting 1.5 hours of intense sunlight during camping, this extends the charging to almost 7 times/days. This means under the right conditions, this battery pack should last you approximately a week while you are camping if you are going to be charging your phone fully approximately once a day, of course, your mileage may vary (depending on your phone specifications, whether you use the flashlight or the camping lights, the sunlight intensity of where you are going to, etc).12v trigger cable: Since this power pack supports QC2 12v mode, you can use a QC DC trigger cable to activate the 12v output for powering small devices. As you can see, I was able to power my 12v LiitoKala battery charger to charge some AA NiMHs. However, you may find this much more useful to power stuff like a cable modem or a router during a power outage. Most modems or wireless routers generally use approximately 6W of power each at 12v, so using a DC splitter with such trigger cable would allow you to power both the modem and the router while staying under the 18W limit. (note that you cannot use 2 trigger cables at once since the battery pack drops to 5v only if both ports are used at the same time.)Overall, this is an awesome battery pack for camping and emergencies. The camping light is bright and could have a lot of utility even when used inside the home. For about $50, this is pretty good value even if you think of this as some kind of bright solar light. :)
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    Top reviews from the United States

    Reviewed in the United States on July 27, 2020
    Color: OrangeVerified Purchase
    Customer image
    5.0 out of 5 stars Very versatile power pack for camping and emergencies...
    Reviewed in the United States on July 27, 2020
    This is a convenient power pack that tries to build everything in one. USB power, compass, a camping light, and a mini flash/strobe light. It is rugged and the attached solar panels can be easily folded up and secured with a button. Unlike many cheaper solar power packs out there, this one actually supports USB-C Power Delivery up to 18W.

    Here's my take on this item:

    Design: I think this item is well designed and they have made pretty good use of the space available to make sure the item is not too bulky yet ruggedized to handle bumps while you are on the road. The ports are nicely tucked inside a rubber cover so you don't have to worry about the ports getting wet when it is on your backpack and it is raining outside (it comes with a carabiner clip with a keychain ring to attach to both the unit and your backpack - see picture).

    Ports - On the USB ports, they support a wide range of different charging protocols: Apple 5V/2.4A, Samsung 5V/2A, BC DCP 5V/1.5A, QC2 5/9/12V, QC3, FCP, MTKPE 1.1 PE2.0. Although one of the ports is labeled blue, the black one also supports QC2/3 (there is no difference between the ports). That said, only one port can be used at any given time for quick charge based protocols to engage, otherwise, both ports would be available at 5v only (most likely because they share the charging circuitry on the USB ports).

    The bidirectional USB-C port supports PD3.0 5V/9V/12V PDOs at 2.4A/2.0A/1.5A, respectively. Also, it supports Apple/2.4A and BC DCP 5V/1.5A. This is nice because most battery packs around this range would only support a dummy USB-C port that operates at 5v only and would not allow Google Nexus devices to charge beyond 5v. Having PD fixes that issue.

    Note that since the ports are tucked inside the rubber cover, there isn't a lot of clearance for direct plug-in USB devices that are wide-sized. In those cases, you may need some kind of USB extension or right-angle adapter for the plug to fit properly. Most devices, however, use a standard USB cable to connect so this shouldn't be an issue for most devices (you can see that I have to plug a tester on top of another tester because that second tester was a bit too wide to fit into the mouth of the rubber casing).

    Charging - Charging is fairly straightforward. You have the option of using either the Micro-USB port or the USB-C port. When using the Micro-USB port, you are limited to 5v/2.4A unless your chargers support the Huawei FCP 9v protocol (although many times the battery pack ends up charging at around 2.7A or so if your charger has good voltage regulation and the voltage remains high). Most chargers that are made in China to support QC2 generally also support FCP, although pure QC2/3 chargers will not trigger 9v charging. This is the same when using the USB-C port, although the battery pack would request PD @ 9v as well as FCP when it is available. When charging at 9v, the amperage is limited to 2A @ 18W.

    Maximum Discharging Current - Testing the maximum current at the various voltage levels offered by this battery pack without significant voltage losses, I got 5V/3A, 9V/2A, 12V/1.5A. This is pretty much within the stated specifications, except that I was able to exceed the 5V/2.4A rating slightly until the 3A mark.

    Load voltages - Under no load, the voltages were recorded as 5.08v/9.12v/12.11v. This is good since they were a little higher to allow for some cable resistance. As you can see, the battery pack was able to maintain a very stable voltage even at load (4.97v/3A, 8.92v/2.06A, 12.01v/1.51A).

    Flashlights - The flashlight in front does a pretty good job in illuminating the way in front of you, as you can see in the pictures I have attached with the dark kitchen. The small flashlight was directional, so it illuminates in the immediate vicinity in front of you, but not around you. The camping light, on the other hand, is much brighter and my first reaction when I turned that on was - wow! On high brightness, the kitchen looked as if I turned the lights on, whereas on low/medium brightness it's only slightly dimmer than the high brightness (see pictures). This makes this a very good tool while working in a dark garage, or simply keeping in your car in case of an emergency.

    Auto on/off: The battery pack turns off after 30 seconds of low/no load (by reducing the output voltage to ~2v). This means you do not have to manually turn on the battery pack to start charging anything that you start plugging in since the device senses this and restores power at the appropriate level. This offers convenience, although at the trade-off of some standby power.

    USB passthrough charging: This battery pack supports true passthrough charging. If a 9v input is already engaged, it disengages and falls back to a 5v input source. The battery pack then passes the 5v input from the charger to its output ports while simultaneously charging itself. Because of the true pass-through function, the output voltage is no longer regulated by the battery pack, but rather than the voltage source (e.g. charger). For that reason, the output voltage can drop to around 4.5v when the battery pack is charging from the source at high currents. Adding device load while the battery pack is charging is additive to the input current, and if you have a very good charging cable (e.g. a 1ft USB-C to C 5A cable), the current can reach 5v/3A when the other device is plugged in (the enclosed USB-A to USB-C 2.0 cable charges at around 2.2A when I tested). The battery pack also seems to have a protection function that prevents the pass-thru voltage from getting too high due to a malfunction of the charger. In this case, it looks like the battery pack shuts off charging when the output port reaches approximately 5.45v (using a charger source of approximately 6.40v while charging at around 2.67A). This is a good mechanism to prevent your device from frying if the charger somehow malfunctions and continues to provide 9v QC even when the battery pack did not ask for it.

    Capacity Testing: The discharge test yielded a real capacity of approximately 65.04Wh (~88% efficiency) at 5v/2.3A. This is quite efficient given the high current. On the other hand, charging at 5v/2.7A required about 94.92Wh of energy (~78% efficiency) without any supplemental sunlight. I am assuming this is due to the converter being less efficient at higher currents, although I plan to be putting this in the back of my car to gather sun while it is out so charging efficiency isn't a big problem to me.

    Solar Charging: The charger's solar indicator (the green light that is next to the battery status indicator) is quite sensitive, and turns on even at the slightest of sunlight. However, it is important to note that the panels all together can only produce 1.2A of current under intense sunlight (theoretically 6W max). Assuming the panels produce 82% of the theoretical maximum, and another 80% of that energy is used to charge the battery, that means the panels are adding about 3.94W of power to the batteries under intense sunlight.

    Assuming the energy required is 25% above the nominal capacity value (92.5Wh), this means approximately 23.48 hours of intense sunlight is required to fully charge the battery from empty to full.

    If you were to leave the battery pack in a sunny place all day long without moving it (assuming ~5.5 hours of intense sunlight), this would mean it would take slightly more than 4 days to charge it under these conditions.

    If you are on the go and moving between shady and sunny areas, you may only be exposed to intense sunlight (or equivalents of) for about 1.5 hours or so. In this case, the time to fully charge a depleted pack increases from 4 days to a bit more than 2 weeks.

    And since cloudy days yield very little current (generally 5-10% of the power generated compared to the intense sunlight power), you pretty much have to wait forever for this to charge. Assuming the average cloudy day yields approximately 8% of the power relative to a sunny day, that would mean 0.3152 watts, or 293.45 hours of equivalent light to fully charge. Even assuming you can get 7 hours of this equivalent light, the battery pack will still take over 40 days to fully charge.

    Now, this is not to say solar charging is useless, but you should have a realistic expectation that the panels are there to supplement the energy provided by a charger while you are on the go, versus replacing the need of charging the pack from the wall completely (unless you want to throw this in the sun and not move it for a few days). If you are thinking that just throwing this near the window on a cloudy day would allow you to charge your phone forever given the infinite potential given by sunlight, then you are probably buying the battery pack for the wrong reason.

    If I were to go camping with the battery pack and charge my OnePlus 6T fully once a day (which has a 13.69Wh battery) and leave home with the battery pack completely charged, the battery pack would charge my phone a little bit over 4 times/days (assuming a charging efficiency of 88%). Assuming I am getting 1.5 hours of intense sunlight during camping, this extends the charging to almost 7 times/days. This means under the right conditions, this battery pack should last you approximately a week while you are camping if you are going to be charging your phone fully approximately once a day, of course, your mileage may vary (depending on your phone specifications, whether you use the flashlight or the camping lights, the sunlight intensity of where you are going to, etc).

    12v trigger cable: Since this power pack supports QC2 12v mode, you can use a QC DC trigger cable to activate the 12v output for powering small devices. As you can see, I was able to power my 12v LiitoKala battery charger to charge some AA NiMHs. However, you may find this much more useful to power stuff like a cable modem or a router during a power outage. Most modems or wireless routers generally use approximately 6W of power each at 12v, so using a DC splitter with such trigger cable would allow you to power both the modem and the router while staying under the 18W limit. (note that you cannot use 2 trigger cables at once since the battery pack drops to 5v only if both ports are used at the same time.)

    Overall, this is an awesome battery pack for camping and emergencies. The camping light is bright and could have a lot of utility even when used inside the home. For about $50, this is pretty good value even if you think of this as some kind of bright solar light. :)
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