Feeke Solar-Charger-Power-Bank – 36800mAh Portable Charger,QC3.0 Fast Charger Dual USB Port Built-in Led Flashlight and Compass for All Cell Phone and Electronic Devices (Black)

Good Charger on the go
DO NOT LEAVE IN SUN TOO LONG. Causes the solar panel to bubble up, meaning the battery could burst. Still works well and for a good amount of time.

Perfect for clutch situations.
This solar charger is great for emergencies. I have a galaxy s23 and could charge my phone from 23 percent to 85 (battery protect keeps it from going to 100) in about two hours. Solar charger was at 100 befor being depleted. What makes this great is even though the solar bank was empty I was still able to charge things like my head phones long as the pannel notice “sunlight”. Key word is sunlight, I notice this when I left my home and walked out side. This particular day it was very cloudy and the sun was not visible. Green light came on indicating it was charging. The battery in pack I believe is not big as it claim. I should have been able to charge my phone a few times before it died but seems like I would only get one charge just from the bank itself. Not really a deal breaker again due to the fact you can still charge by sunlight albeit slow…very slow but still possible. The light is bright and have a cycling mode from a solid beam to strobe and i believe s.o.s. My only complaint is the ports and power button. The ports needs a rubber gasket instead of the plastic flap. The power button should be separate from the light, tap double tap to turn on and off can be annoying other than that I Would recommend for emergency kits and camping

The 36500maH claimed capacity, for this Battery Pack, is falsely stated in the advertisment.
While this unit has some nice features, like a flashlight, a solar panel, and a battery charge meter, you are not purchasing a 36500 maH battery pack. I don’t think people realize how big a 36500 maH LiPo battery pack would be, in reality.Since the advertised 36500 maH is obviously inflated, and misleading, I disassembled my newly purchased Charging pack, and ran some charging/discharging measurements, directly, on the internal battery, using some equipment specifically design for testing LiPo batteries.The unit contains a single cell LiPo battery, with a nominal voltage of 3.7 volts.Fully charged voltage is 4.2 volts, and fully discharged 3.2 volts.These are widely accepted values for LiPo cells.The battery has no markings on it.Beginning with a fully charged battery, at a 1 amp discharge rate, I measured the battery capacity as 8000 mAH.This represents about 30 watt hours, and is quite good for this size of LiPo battery.However, since a single cell LiPo battery only has a terminal voltage of ~3.7 volts, it must be Boosted to 5 volts, as required by the USB devices, that you intend to charge. There appears to be a voltage Boost circuit on the small circuit board inside the unit.Now, that the 30 watt hour battery, has been Boosted from ~3.7 volts, to 5 volts, the charger will have correspondingly less maH.So we end up with about 6000 maH, as the overall Battery Pack capacity.This is the number the Seller should be stating in his Ad.I don’t know about modern Cell Phone battery capacities, but 6000 maH, charges my Samsung tablet up to about 80% – once.I don’t think this issue is unique to this particular Solar Battery Pack, as many of the advertisements for these devices include unrealistic charging capacity claims.I did not measure the output from the included solar panel, but I am guessing, from its small size, that it would take a very long time to charge the 8000 maH battery. There is nothing wrong with this, as long as you understand the limitations.I guess there are no ‘Truth in Advertising’ rules, or laws to prevent this type of misrepresentation.If the unit was advertised as 6000 maH, I wouldn’t have a problem.I hope this information helps you make an informed decision.