Will it solar-charge if placed in the sunlight with 0% internal battery, AND charge a connected phone?
67081
no it does not charge when placed on the sun with something connected to it i just tried.
864811
This charger does not need to be charged itself, you simply unfold it and lay it in sunlight, then plug your device's USB charging cable into it to charge your devices. Does that answer your question or did I misunderstand?
1215818
No it does not work on solar power you will need to charge it with the micro usb cable either plugged into your pc or any 5v power supply from your phone. Hope this helps
1871248
No. Unfortunately, it really needs absolute, direct sunlight. There are some more expensive ones that can charge or maintain a charge in partial sunlight or cloudy conditions, but not this one. We had it overseas on a 2 month hike and it was not useful. Hope this helps.
1334080
it should work like any other solar charger, just do not overcharge any battery.
634538
No, it requires the sun to charge and does not store charge. It won't contribute to draining your battery so you can keep it plugged in.
1288010
It does charge based off solar. My radio is fully charged now and will charge my cell. It will drain pretty quick if not kept where it can charge.
877910
Yes, and the brighter the sunlight, the better the re-charging goes; so I pay attention to align it to direct sunlight as much as possible. Had the unit for quite a while now and still going strong.
2242146
I believe that the batteries will be charged under the sun no matter if it is OFF or not.
1707666
It does NOT need to be turned on to charge the internal batteries in the sun. If the green lights to the right of the button don't light up under sunlight, the unit is defective. When it is self-charging, the left green light should stay on and the right one will blink. If you plug a device in to be charged, then the unit must be turned on.
1697325
I'm sure it could... but it might take a while. I mean... It charges my Droid cellphone no problem in just over an hour when I am at a 0% battery. And the unit is in direct Sun light. I love this panel, no problems w/ it at all. I took a "risk" in buying the panel and that is one risk that I would take again. No issues so far and it does what it needs to do for my needs! Hope this helps.
1560081
I haven't tried it in full sunlight. I did try leaving it inside my car next to the windshield. Although this is not ideal, after 2 or 3 days, it did not charge much my 10,000 mah battery. It may be better for smaller battery capacities like your iPhone but not super efficient for large battery packs.
1783341
There are no batteries in this. This is designed with just solar panels and a USB cable for "live" energy. I suppose you could engineer something with batteries that would hold a charge for you, but this will not store energy, just absorb and pass along. If you plug in your phone on a sunny day, it will charge your phone as long as it stays sunny.
760347
I would have to say no. This product needs strong sun light in order to charge up. So unless it was by a window or door that got strong sunlight I wouldn't advise it.
333707
I would think not, it charges very slowly and needs to have the sun shining on it in order to charge the cell phone.
1655520
I'm not really sure if it will or not, I've always used it when my phone is fully charged and it stays charged due to the solar panel. I LOVE this thing and it's one of the best investments I've made for beach days :) We use it at least 3-4 times a week and it's never let us down.
336871
There is a key you insert into the on\off hole near the light. But it will need sunlight to charge.