Do these not have diodes in the circuitry to prevent back-drain? I fell asleep charging a tablet that was at 75% and woke up to it 100% DEAD.
2023340
I am not sure about that. But I have no problem since using it. As usual I charge Goal Zero escape battery, and sometimes Ipod, cell phone battery etc. I suggest that you should discuss about your problems with your seller.
558954
Yes they all do that, and these takes a long time to charge....just plug them in, let it sit over night into tomorrow and they will turn green and full...i have mine cycled 10x already on empty and they still hold a charge..so it's good thus far
2150679
No they dont work. I bought them for both an S4 and an Asus Memo and neither even acknowledged i plugged anything in. Waste of money.
1371247
The ones I bought were wired to a circuit and have a battery back up. I did not see any that you just plugged in to an outlet.
1963186
I'm very satisfied with mine, I use them on a high drain device and it last a long time. A smoke detector should be a low drain service . Make sure you are charging then properly, my charger is over 10 yrs old and it takes many hours to re these but it does the job. Maybe you have a bad battery, or charger . Try also and see if they work on some other device.
1214305
Try to turn off the tablet first and plug it in to charge for few hours. If your label says 5V 1A(1000mAh), it might not have big enough power to charge while tablet is on. If this doesn't work, tablet might be defective. Some tablets when it can not read the battery power level.
2256386
When the tablet is docked it will not charge due to the amount of power required but you should be able to charge them separately. If you see the amber light come on when plugged in it should be charging as long as their charging separately
543651
That's my experience, but I haven't seen that in the instructions. I've been using rechargeables for 20 years - when ni-cad was the latest tech. I'm disappointed in the large number of cells that fail after only a few recharge cycles.
1986356
I don' know. I believe letting/not letting them discharge is NOT an issue with this type (they don't have the ghost charge problems other models do) . I recharge mine when they still have life left and haven't noticed a shortened lifespan, but haven't done a formal experiment.
1951459
Unfortunately they cannot. As soon as the charger is plugged in they disconnect and go into a standby mode type thing.
1344471
h! there is a cable hanging loose, right? try plugging it to your tablet on the side: that's all it takes! no turn on/off needed. so to not run my batteries i unplug it when not in use
1157688
Hi Gregory! I just asked the question of the best "proven" way to charge these batts and I'm convinced by the majority of answers is to use the USB end and keep the mAh's the same 1 thru 5, of course. It will take longer, but successful all around, as many have said and I tend to agree. Some have used, me included, a 3.7V wall charger, but I don't feel any longer. I hope that this helps and puts your mind at ease as it does mine!&#128522;
1857154
Yes, these work while charging, but the indicator light will not show send/receive indications, only the charging state. Would be nice if they had separate LEDs for the two functions.
1745554
No. They seem to use so much less power that they just won't kill the battery. I've had them on overnight several times with no issues.
280252
I hooked mine up to charger over night while I slept ....sorry it took so long to respond =(
1593810
Make sure you remove the plastic strip between the batteries. They insert them to prevent the batteries from draining, but it will also prevent them from charging if you don't remove them.
1084531
Good question, i finally charge mine for the first time last night and fell asleep after. Woke up and its still red. Would be nice if it turns green.