How long does it take to fully charge the battery on an average day (using solar only)? Also, can it be charged by usb?
632203
Agree with the other answers, it takes a little longer though glass, close to the 12, but it does charge the devices quickly. Defiantly a staple on the packing list now.
632204
8-12 hrs depending on amount of direct sunlight, but u need to position it correctly ( not a big deal ) as sun moves. USB charging works very well to re-charge ...... its handy given you have off grid capability if required and it does't rain all week LOL
632205
I arrives fully charged and charges fast. I have not tested but directions say it fully charges in 12 hr. One thing is certain, it charges my Samsung Note 4 fully in 30-45 min. It can be charged w USB quickly.
1188229
I have never fully discharged it so I can't say how long a full charge would take. I recall that the first charge took under an hour. However, I have used it for well over 4 hours without a charge and a re-charge takes about 30 - 45 minutes +/-. I use a standard charger not the USB port on the computer. Seems fast to me.
1443904
In Colorado, a bright day, this took with NO power reading all day from 6am-9:30pm for a full 100% charge. At 1pm I turned it to face west. Traveling though, with use on ipads and lights, it seemed to take 2 days of charging. Very good charger and unit, you can always add an extra solar cell if you need to.
990639
You'll need a 24V solar charge controller, hooked up to the solar panel and then to your battery. In full sun, it will take about 20 hours to fully charge a 100 AH battery. However, you should not let your battery get much less than 50 percent of capacity between charges.
1597422
I'm not sure about charging any battery. The plug is a usb connection, putting out 5 volts dc. I only kept it for a few days, it would have taken about 4 days of full Sun to recharge my Samsung phone. Way too long for my needs.
277440
Full charge on Solar charger? I can't be sure but seems like it was charged in a few hours. My iPhone was 100% in 30 to 45 minutes, maybe less.
912403
charge it as many times as you want by the sun depends on how much sun you get it takes about 3 days for 100 percent. to help get to 100 % you can charge it by a lamp or any light.
929625
I've been using it everyday. Only have one full charged since the day I've bought. i have been using it for 2 months. btw, it charges through USB port.
57883
Hmm - I don't know that I've ever really checked the amount of time it takes to go from completely dead to a full charge. I normally just plug it in to an outlet and leave it for an hour or two and then it's good to go. You can also use the USB to charge it on your computer - which is nice. It's really a nice little charger - I use it all the time on trips, or if I know I'm going to be away from the house all day I'll keep it in my pocket just as a safety measure in case my phone battery dies.
1848173
Perhaps you could clarify your question. This is a Lithium Ion DC storage device which holds 9200 mAhrs of power. It normally charges from an AC wall socket at 120 /240 volts (8-10 hrs). It can also be charged by USB connection to a computer (14-20 hrs, depending on the type of USB (3.0 is faster than 2.5). It can also use an included 5w solar panel, which takes about 20 hrs. There's no magic here -- the more watts you put in, the faster it charges. Connecting it to a car's 12v jack via a USB adapter would take about 16 hrs to charge. Most importantly, though, as a Lithium ion device, it's designed to have power flowing in and out all the time. When hiking or camping, we just let it charge on the solar panel during daylight, whether it needs it or not.
1199463
It can take between one and a half to two hours to charge the battery if charged when about 15% of the charge remains. I usually do not let mine completely run out but based on the time it takes for 85% of the battery to charge, I would estimate two hours and twenty minutes to two and a half hours for a full charge.
2011666
I don't think so. The solar cell may charge without direct exposure to sunlight but it may not be enough to charge the battery completely. I have installed mine where sun does hit directly for few hours and the rest of the time it is at an angle but it still works perfectly. The light is not very bright, please keep that in mind.
946162
The battery once full (green) charged a smartphone no problem. It only brought my tablet (a Nexus to ~60%.) On a partly sunny to sunny day, it seemed to take 6 or 8 hours to get to green so basically all day but it depends on how much sun you have.
1338585
I hard charge my battery everytime...overnight. I suspect it would take a full 8 hours. I also carry a second battery with me....never want to be caught out with a dying battery 25 miles from home.
2257381
I've found that a 100-120 watt solar panel will be able to recharge this system from empty to 80-90% full in a good sunny day's worth of sun. It takes the full day to do it and if it's cloudy or worse then expect 2-3 days depending on conditions. You will need to add a solar charge controller to help with the task and to protect the battery from being over charged.
946166
With good sun about 8 hrs for a full charge. I pre-charge mine w/my phone charger before I head out though.
2053485
I own 2 e280s, one of them since last July. I have found that it takes about 3 1/4 hours to charge fully. However I use a seperate charger to charge mine. I do not charge from my computer. I get between 15-22 hours on a charge.