Hobest Solar Charger 10000mAh,Waterproof Outdoor Solar Power Bank with LED Flashlight,Dual USB Portable Charger Solar for Smartphones,GoPro Camera,GPS and Emergency Travel

I got this for my trip to Thailand. I bought a converter to help charge all my devices, including this one. It was only able to charge my phone once a day. The solar panel, which was exposed to sun every day during daylight hours, didn’t seem to “add to” or supplement the power storage at all because after my one charge up of my iPhone, it wouldn’t charge anything else. The rubber port cover to charge the unit wouldn’t close properly and therefore was exposed to rain which may have affected usability. It wasn’t very reliable unless it was fully charged by an electric source. I spent a large portion of my trip fiddling with this thing to capture beautiful moments...but it ended up being a huge disappointment and a waste of money.

Anyone who thinks this device is going to charge a phone or IPad from the Sun alone needs to do some freaking homework on solar devices in general.Charge it up with a plug at home! It will fill a phone to100% in a reasonable time granted the solar device is charged from a plug..That's 110/120 volt power from your wall at home!The solar panel part of this device is almost a novelty as it is barely enough to supplement the devise when its internal battery is needing a charge.If you don't understand what I'm talking about refer to the first line in this review! The device must be charged from a wall socket in order to gain a full charge!On a side note my unit is a couple weeks old and it will not charge a full 4 bars even after 12 hours of being charged from a wall socket 110/120 volt..My final outlook on this product is this....Typical Chinese Junk and I ain't talking about a traditional Asian boat.. Junk is Junk...

I’ve had this charger for about 2 months now and would but it again in a heartbeat. I teach boating in all weather so this charger has been consistently challenging conditions. I’ve recommended it to several friends too.Pros:- I especially like the case design. I attached a split ring to the open corner on the charger. (It would be nice if it came with one though.) With a carabiner or strap, I can easily attach the charger to my bag, bike, or boat rail to charge passively all day long. It’s rugged enough to take the inevitable bumps, knocks, & splashes, plus I’ve dropped it in the water a time or two (accidentally.) It still works perfectly & looks as good as the day I got it.- I have been able to increase the charge level by one “bar” in a few hours outside (though it would probably fully recharge in the same amount of time plugged in.) It’s a great alternative when there is no access to an outlet.- The green “charging” light is almost always on, and comes on in almost ANY ambient light. The light intensified to indicate strength of exposure. Photo 1 is indoor ambient light near a window but not in direct sunlight. Photo 2 (dimmer”charging” indicator) is indoor, no lights, no line of sight to a window.- I’ve used the Hobest Solar Charger (10k mAh) to fully charge my iPhone as well as my iPad Pro and always had power to spare. I can’t say how many charges it could provide because it’s almost always trickle charging. I use it to recharge my phone almost every day (Nav apps draw a lot of power) but I probably only recharge the Hobest 2-3 times a week.Cons:- As others say, the quickest recharge is with wall power. It does take considerably longer to recharge with solar, but it’s free and gives you an option when there is no access to an outlet.- The blue rubber band in the photo is to keep the rubber port covers in place. Because I work in a wet environment, I want to be sure the ports are protected. They stayed in when it was new but they don’t stay in anymore. I tried wiping them off with rubbing alcohol to remove any oils or grit, but it made no difference. The rubber band is a small, simple sacrifice, and not enough to change my opinion.

-It doesn't get fully charged ever. I plugged it in for 3 days straight, but the indicator blue light only show 3 bars (out of 4).-The power gets drains out so fast. I charged my phone for about 20 mins. The power from the bank has lower by half! The indicator light reduced to 1 bar.-Impossible to charge via solar panel. I put it out in the sun for 2 days but nothing happened. The green light is still on, which means the power bank is not fully charged.-I can't use solar panel while charging the phone. It doesn't work like other reviews said. I connected the power bank to the phone but the phone charging indicator doesn't turn on. The power bank only works when you are in a blue light mode. This is very disappointing. My device maybe defective?

I bought this to take on a geology field trip where we needed to take photos for our final project. Going from a 10-hour day trip without any sort of batter pack to this three-day trip with it, I was overall fairly pleased with its performance. Because it got down to 26º F at night, I actually kept both my cell phone and this charger in the sleeping bag with me so they wouldn’t drain overnight.I wall-charged the power bank before I left town, and hung it on my backpack when we were hiking. The solar panel itself isn’t large enough to really get enough charge to make a difference over the course of the day. However, I was able to give my phone enough juice to keep it charged throughout the weekend. I also take it with me when I wander around town playing that Harry Potter version of Pokémon GO, and it does the trick there as well.I tested solar charging it outside, when it already had three of the four bars charged. I had to leave it outside for over a week to get that last bar filled.TL:DR — decent power bank, charge before you use it, don’t rely on the solar to charge it up efficiently.