QiSaSolar Charger 38800mAh Solar Power Bank with Dual 5V3.1A Outputs 10W Qi Wireless Charger Waterproof Built-in Solar Panel and Bright Flashlights(Black)

I’ve had this back-up battery pack for a couple mo now. I like to actually use it before hovering a review so you’re getting a more honest opinion. So the flashlight is a plus and very bright! It has 2 usb ports so you can charge 2 devices at a time. Love how it has the solar panels on it. I’ve been able to charge it from the wall and it charges pretty quick (ab 1-2 hours after complete drain) I haven’t charged with the solar panels yet I’ll have to do an update later. But I’ve been able to charge a 10 inch tablet to 100% in about 2 hrs and there’s still plenty of life left in the battery pack then charged my iPhone that bright it down to about two bars on the pack. All in all it’s a good little charger to have for when the lights go out to charge your phone or tablet. I wouldn’t hook ot up to a fridge or anything lol but it’s compact enough to Cary in your purse or car and it does it’s job! It’s better then any battery pack I’ve ever had and I’ve gone thru some battery packs. I’d definitely recommend this one… hope this helps someone😊

I purchased this product because of the capacity and multi solar panels. It was to replace the 4Pat solar battery which is a good product in its own right. The solar battery from 4P is 8000mah and has one solar panel built into the front. Takes quite a bit of time to charge but is useable. This unit has four panels rated at 5v 1.5 amp in direct sunlight. The instructions recommend you regularly charge from a wall adapter, not the panels. From the wall charging can take up to 8 hours from empty and is rated at 5v 2amp. I "assume" the recommendation may have to do with the battery being exposed to direct sunlight for an extended period of time. I was impressed with the capacity at 38800 mah which is more than 4 times the competitor I mentioned. I have not had the unit long enough to compare how far each one delivers. Batteries are notorious for only draining to ~80% or so of capacity, you can do the math. I did plug into my old iPad Air and it took about ten minutes to charge from a beginning 48% to 51% if that helps anyone with a decision. Keep in mind this battery will not keep up with larger prepper units on charge time.Wireless charger - looks to work but I just tested for connectivity. I have a 4.5mm cover on my phone and killed the battery with a cheap wireless charger last year. I don't know if this is rated for wireless charging through the cover but didn't want to sacrifice another one to prove a point. Beware the solar battery that houses the wireless charge point is extremely smooth/slick. You will only want to use it as long as the battery + phone remain stationary.Have had it less than a week. Strongly recommend everyone look at units like this one and larger. I'm not a full on prepper but the handwriting is on the wall folks. We are headed for rough times.

It's a bit too soon to give a full review. Originally purchased as a gift for someone, but due to duplication, I thought it nice enough to keep for myself. I do outdoor activities. Camping, overnight astronomy trips, kayaking, fishing. I usually have all of my power requirements well taken care of, from battery packs up to a 3 Kw camping generator. This being solar powered will fill a niche. Unlike the usual single panel battery banks, this one will recharge itself at around the same rate as the average USB wall charger. That boils down to hours, not days in charge time.I haven't had a chance to use it just yet, only an initial charge, and making sure everything functions properly. So far, so good. Wireless phone charging works in a brief test, a big plus! I will be doing an overnight astrophotography trip within the next few weeks, and will put it to use out in the field. I will try to update then. So far it's 4 stars until an actual field test happens. Right now due to Holidays, and weather, it's a wait and see situation.

Initially I was disappointed by the charging speed of the device and its ability to charge my iPhone. Even though the Amazon return period had elapsed, the seller stood by their product and was willing to refund the purchase price. This is excellent customer service. It is understood that solar charging is not yet comparable to other methods of charging and it should not be expected that solar charging be the only method of charging a battery pack.After two days of direct sunlight, the charger would still not come up above approximately 25% charged. There are no built-in cables like in many other chargers, and unless the charge reached a certain minimum threshold, it would not charge the iPhone 15. The capacity is not as great as other chargers. Knowing all this, if I could do it again, I would’ve purchased a larger capacity charger, and given up on the solar option.

At first, I doubted this battery was 38k mah and doubted it would charge in the field. I was wrong. While I don't know if its actually 38k it does work pretty darn well. I have used this total of 15 days of kayak camping. I was able to keep my devices ( phone and nicotine device) fully charged for 5 nights 6 days on 3 different trips now. It actually tops itself off during the day hanging off the back of my kayak. For $40.00 I am pretty impressed. I watch movies on my phone to fall asleep, or on rainy days... which drains a lot of battery. I hope it lasts......so far so good on this. Its heavy for backpacking. I did have to make a hanging loop out of SS wire .041" thick. I use a carabiner with the loop I made. One of the trips we had broken sun with a lot of clouds and I still got through it. Test it yourself for your needs obviously.