I would be very interested in this battery....if I knew how to charge them! What has worked for you?
1169951
I use these batteries in some of my solar lights, and I believe they are specifically meant for that use. The charger is built into the device. Just make sure the device is turned on and the solar panel can get some direct sunlight and they will charge quite well. They have worked well for me so far.
1169952
I got these for solar LED lanterns. The original battery was soldered into the board - I removed it put this battery in it's place and it charges with the solar cell mounted on top. sometimes it charges fine - but has to be very sunny. You may be able to charge it using a AA/AAA charger and a copper wire taped to the contacts - but I'm not sure if that would work.
1169953
Not a darn thing.I tried to buy a charger but no one makes one for this size of battery.So I spent $40 on these for nothing. I put them in my solar lights when I got them and 1 week later, in the sun, no charge. Wasted my money, so don't buy until you find a charging device.I have had them for a year, and still cannot find a charger.
93480
The stock Nano QX USB charger works really well with these batteries. It charged them in roughly 35 minutes a battery so I tend to just plug them into my computer and charge them one at a time while I work. I believe there is a unit that can charge a whole bunch of these at once here on Amazon but I can't think of a name.
492494
No these don't work that way, they aren't so much like a battery. they only out put power. They work very well even in not so great light. I do suggest getting the highest wattage you can afford. These will keep a phone or tablet charged with no problem, however, the device you are trying to charge need to be off for fastest charging. Hope this helps.
264023
I would send it back if you can. I purchased same item and one battery will not charge and the other battery was dead out of the box and Amazon doesn't pay any attention to these messages or I would have heard from them from a previous message.
993642
Sorry to hear your having trouble brother!! I have owned mine for almost a year and I just checked it, working just fine with the original batteries plus I still have the 2nd pair which they included. The best thing to do is contact the manufacturer, I've talked to them and they have a great customer service dept. I think they will be more than willing to help. Good Luck
2025247
sorry for the delay in responding. battery cells work nicely for me so far.
1402330
There are very specific instructions for this battery. If you follow the directions, they work great. They cannot be "trickle charged" (this will damage them) and need to be brought in over the winter.
613106
There is nothing that will effectively charge these batteries. They are a waste of money and will immediately fail. Just buy a dewalt.
860333
Listen up folks, my cell technicians use these batteries on their ATG 6430's and 6420's and they will keep their laptops going all day from 7:00AM till after 5:00PM without having to stop and charge. Too bad I can't get the same out of them. j/k Great Battery, thanks... A+
1513870
Not to be a "brand-hog" but I would recommend simply purchasing a Tenergy or Tenergy-recommended charger in order to get the most out of these batteries. Mine are over three (3) years old and still like new!
1763410
These batteries need a special charger. The charger I use has a temperature probe to help it regulate. I have a motorcycle, and use a small inverter to facilitate charging various devices (laptops, Tenergy batteries, etc.).
1622703
I would immediately send it back. It has to be defective. My two batteries work just fine. They take the charge and hold it until you are ready to use them. Sorry to hear you had trouble. These are hi-tech units and I do suppose that they are a little temperamental.
1574990
I have not as yet and I basically use them every day and charge what feels like every other day. They say 10 hours and it really is at least that. I'd agree that replacing the battery is unfortunately not a likely option. The silver lining perhaps is that li-ion batteries are very good these days so with some luck they'll last several years.
1977564
These batteries SUCK!!! I bought two of them and neither one of them would ever hold a charge worth a darn. Spend the money and get the real deal. Hope this helps. I finally wired my kids ride-on to take a 12volt garden battery that I can recharge with a car battery charger.
748934
I bought a Ridgid AC840083 - X4 18v 3.0ah Hyper Lithium ion Full Capacity Battery,Sold by Innovative Emporium. I looked at the ad for the battery you bought from another seller. If I had bought based on the ad I would have expected the charger too. Though a battery and a charger for that price would be a steal. It seems to me that they owe you a charger. At any rate you got a good battery at a good price. Best of luck. Stan
723768
Hi, there are instruction with it,,they seem to work. Charge it over nite, run your computer until you get a low battery signal, do this a couple of times, mine will hold a charge for about 5 hrs.
445286
I have not had that problem, yet! Sometimes a battery will not receive a charge. I would buy a new battery for a cure>