The battery works well enough. I was able to use it while camping and get my 3 air mattresses to inflate, deflate and charge my Bluetooth speaker 2 times. For the size and weight it works pretty well. It does take a LONG time to charge though. Even with the included AC adapter, or 12V car adapter I feel like it takes over 8 hours to charge, maybe longer.
I am giving only 3 stars for a couple reasons though.
* The solar panel is not capable of charging this beast. I sat the panel in direct sun for over 8 hours and it didn't even gain 10% charge. I tried over multiple days as well. It was able to charge my Bluetooth speaker up about 75% in a full day, acceptable, but not really helpful for the battery it comes with.
*The buttons are not easy to read in the dark, and I accidentally hit the AC button and burned the whole battery overnight without even have a load on it. I feel like the AC inverter should have an auto shut off like the USB ports do.
*The USB ports will shut off if port 1 stops being under load. So if you are charging multiple devices and the first one finishes first, the rest will turn off after a few minutes, even if they are still trying to pull juice.
*The led light should have more dimmer options. It's on, sos or off. A low setting would be nice as a night light when camping and take a lot less battery.
Conclusion:
For the price, it's not half bad. It did what I needed and I can use the solar panel to charge other devices even if it can't charge the included battery. The size and weight are good for the amount of power. But there are many limitations that I suppose come with the price point. This is the cheapest model I could find on Amazon at $135, so for that it gets 3 stars.
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