If an Anker charger is fully charged, how long does it hold the charge, if it is left idle i.e., you don't charge any device?
1196693
Mine just sat on my desk for about a week without being touched, and I plugged it in and it is charging. I don't know if its going to charge my phone all the way, but this is a very good quality battery and probably only dropped three or four percent in a week of being idle.
1196694
Mine is about 1/2 discharged after 3 days. So after a couple of months I bought another one (June 3rd 2014). It self discharges rapidly too! So I just make sure my Ankler's are plugged in every night to keep them fresh for the next day or I won't be able charge my phone fully.
1196695
Generally, most of our external batteries' static power consumption is lower than 100uA, which will take between 3.5 and 20 years to drain the battery completely if they are not used. However, the chemicals within the li-ion battery will gradually become less active over prolonged periods without use. Most will die in 2 years of inactivity.To extend your battery's life:1. Charge and recharge it at least once every 3-4 months.2. Do not over-charge or over-discharge it. It is best to keep it charged between 5%-95%.
1196696
Generally, most of our external batteries' static power consumption is lower than 100uA, which will take between 3.5 and 20 years to drain the battery completely if they are not used. However, the chemicals within the li-ion battery will gradually become less active over prolonged periods without use. Most will die in 2 years of inactivity. To extend your battery's life: 1. Charge and recharge it at least once every 3-4 months. 2. Do not over-charge or over-discharge it. It is best to keep it charged between 5%-95%.
1787944
I've only charged mine once and forgot about it for a couple weeks, I just used it yesterday to type this review and it appeared to be nowhere near empty so I'd say it holds it's charge very well. Back when I used it more frequently I could go two days on a single 4 hour charge.
2128198
I'd start with a new battery....and since it has a memory you will need to let it run all the down in order to get a full charge and then leave on the charger about 3 hours maximum time.
1106967
Mine was not fully charged. Popped it in the charger for about 15 minutes and no worries.
1777333
I just recently bought my charger and used it for 12 hours at a time and my charger did not get hot. I was charging two devices. I would send it back and get a different one.
2251642
Hello. My new battery I purchased this year only took a couple of months to start its decline in battery life. Under normal load, unplugged.. I might get 30-45 min of use before it is at 7% power left. I'm past the timeframe for return so I am basically stuck with this bad battery. I will not be purchasing another battery from Anker.
446256
It hibernates... You need to connect to an external power source if it is almost or completely drained but it will restart where you left off. BTW... This Anker battery is great and Anker customer support is outstanding.
1564903
It only charges with a device attached. It does not hold or continue to retain when not attached to a device.
176504
When you start to charge it a small red LED on it starts to blink. When it is fully charged it stops blinking. I haven't had mine long enough to answer your "how many hours" question. If the answer is not in other questions on this page, there is a similar device on Amazon selling for about $11. Somewhere on either that device or this one, someone said how long their's lasted on one charge. The time on the $11 device is probably the same as this one.
2105967
I've never had it take more than 3 hours from completely empty, but it depends on what you're charging it with. As for how long it holds the charge, mine has held a charge for a couple weeks and any loss in capacity was not apparent to me. It may hold it longer than that, but I have used it so frequently that it has never been left alone longer than that. Make sure you charge it fully before first use, the longer the better for that. I believe the other answer was either a defective product or not fully charged the first time, because of how fast they lose the charge and how short their charging time is. I've never had it take more than 3 hours from completely empty, but it depends on what you're charging it with. As for how long it holds the charge, mine has held a charge for a couple weeks and any loss in capacity was not apparent to me. It may hold it longer than that, but I have used it so frequently that it has never been left alone longer than that. Make sure you charge it fully before first use, the longer the better for that. I believe the other answer was either a defective product or not fully charged the first time, because of how fast they lose the charge and how short their... » Read More I've never had it take more than 3 hours from completely empty, but it depends on what you're charging it with. As for how long it holds the charge, mine has held a charge for a couple weeks and any loss in capacity was not apparent to me. It may hold it longer than that, but I have used it so frequently that it has never been left alone longer than that. Make sure you charge it fully before first use, the longer the better for that. I believe the other answer was either a defective product or not fully charged the first time, because of how fast they lose the charge and how short their charging time is. « Show Less
1404615
yes, it didn't charge. I didn't know what to do, so I called the Anker company and they reimbursed me.
399535
My guess would be the battery. From my experience the charger either charges or it doesn't. The battery on the other hand can degrade and lose the ability to charge
275756
Well, all I can say is that I use it with an Anker battery pack, which says 1.5A input current. As far as I know these new chargers, which output via a USB connector, establish sort of connection with a device being charged. And the device itself will only take whatever it is capable of. So it's not like the charger will shove those 2Amps down the device's USB connector. Your device is supposed to support whatever current is listed on the device. Otherwise it will just use as much as it is capable of. That's what I've been told. Hope this helps.
882806
That is my question as well. The charger keeps stalling, and I have to plug it in over and over again, but it only works for a few minutes (or less). Sorry to add this as an "answer" since it doesn't help.
1791095
On my LG G2 with a 3000mAh battery, it will fully charge 1 and a half times. I forgot to fully plug in my phone one night and it was totally dead. I fully charged it, ran it for a full day (very bad reception in my building which drains the battery faster than normal use) and charged on the way home . On the second charge, the phone went from 40% to 95% before I unplugged it. The Anker was not fully discharged but only had one light left on it's indicator...if this helps at all.
1926914
I've never timed it, but it seems to be only a couple of hours to go from dead to full charge. Keep in mind this device can be used while charging which will likely slow the charge down.
395555
I have used it for 6 hours, and it still had a charge. Don't know average, I charge it after use.