Antun Solar Charger Battery Pack 22400mAh High Capacity Power Bank Solar Power Bank Dual USB Charging Port Power Indicator With LED Flashlight and Charge Protection(Yellow)

The solar charge is a sales gimmick. It is useless in any practical sense. As for the capacity, on a constant, measured 100 mili-amp load. (I used low current draw to avoid any thermal issues that might effect capacity), It died just short of 4 days (around 94000 MiliAmpHours.. The solar charge was so minimal that I had no realistic way to measure it.Speaking of measurement: The advertised rating on USB packs is based on the 3.7v lithium batteries. Since a USB source is 5 volts, the actual capacity is around 75% with an added 10% efficiency loss in the conversion to 5v. Foreign quality control on the manufacture of 3.7v lithium batteries is variable, so 3.7v batteries are often overrated. This all makes it easy for a manufacturer to claim a unit to have a capacity of 22000 when it actually delivers less then 10000.

Awesome heavy duty solar unit. Makes many refills of iPhone and Apple Waych throughout our camping trips, water resistant (put in ziplock bag, fully waterproof :-). It is built well, I will buy a second for my truck. Set them on dash and will charge throughout the day and keep my work tablet powered up when it runs low on job sites.

Poor design for using as I wanted for backpacking, etc. No way to have it exposed to sun while on the move. Not very practical or useful for me and very heavy for the size. Any use I have for it would involve being on the move during the day, hiking, biking, riding my Harley, etc and it does not lend to being in the sun while on the move. Others with much better designs available

Hard to find this now, and it's a little fragile It suffered a minor fall after months of use one day, and I broke one of the USB ports. It's still working just fine and the solar charging is nice. Needs a long time to charge but I didn't expect lightning fast solar charging from a small cheap device like this.

Great battery for emergencies. I bought this for (just in case situation) but use it all the time while outside in the yard to plug in phone and listen to music. Very nice

Very high quality, and was the best value for a large capacity battery pack with solar re-charging that I could find.

I take this to concerts and the beach or whenever I will be away from an outlet.

Heavier than I expected but so far i am really happy with it !