How much time does it take for 4AA battery charge?
508450
The charging current is 300mA. So to recharge a set of 2000mAh batteries will take about 7 hours (2000mAh/300mA = ~7h). Shorter if the batteries were only partially drained.
508451
It would depend on the charger and how discharged batteries are. I used Sanyo Eneloop charger that charges in pairs to charge 4 of these AA batteries. I plugged it in at ~10pm and by 8am (possibly earlier) the batteries were charged. Other chargers may be faster or slower.
508452
I suppose it depends on the brand and how much its discharged. Mine have averaged 3-4hrs... but they weren't completely depleted.
576776
In general, you can get an approximate time for charging anything from zero by dividing the mAh rating by 1000 and then dividing that by the amp rating of the charger. So in this case, you get 50,000/1000 = 50, which you then divide by the recommended 2A charger, and you get 25 hours. I'd add about 10% to cover efficiency losses, too. (This also means that using a 1A charger would require over two days to complete a charge.) Those who claim it can be charged in two hours are wrong. You'd need a 25A charger to do that, which don't exist for USB. You'd destroy the batteries anyway.
1703909
If you're asking how long it takes to charge this battery, approximately 6-8 hours if you use a 2.1 amp charger
2133997
depends on your rate of charge. But if you charge at 5.3 probably about 45 minutes.
1720758
As the others said, it varies.But in my experience, on 200 mA it charges the fastest batteries in about four hours, and my oldest batteries take around 24 hours.
2060670
Between 4-5 hours is how much time it would carry a decent amount of battery charge.
1872868
For the 2Ah battery approximately 20 minutes, for the 4Ah battery approximately 40 minutes of run time.
1893512
I use a Battery Tender Junior, 750mA , takes about 6-8 hours to put a charge on the 12V 7AH battery. Time = amp hours / amps. Most likely takes less time than calculated because the battery carries residual charge. Your scenario, 500 mA, should take a little longer.
266458
Mine had a partial charge so I can't be sure, but I think about 4 hrs to fully charge.
165505
I am not really sure, i have a total of 3 batteries, so when/if one goes dead, i just pop it in the charger and it stays till i need it again. My android phone takes a while to charge, even on its own w/o any apps running. My guess it takes about 3 hours from completely dead to charge.
1109026
Same length of time a standard iPhone charger takes. If you're asking how long to charge the battery bank, a couple hours to 3-4 depending on how drained it is. This should be used as a supplemental power source as it has never given a full charge to any of my dead iPhones- 3GS, 4, 4s, 5, or 5s.
1814483
It seems to only take a few hours. I plug it in overnight and it's charged in the morning.
35137
My battery charge has reliably lasted 3 to 4 hours depending on what I'm doing on my computer.
1549430
It takes a full 8 hours to charge a single battery , usually overnight ... If you trim "thick grass" the battery can last only 20 minutes (the harder the trimmer works, the quicker the battery runs down) ... For easier jobs, 1 battery lasts about 30 - 45 minutes ... I can't completely trim my yard with 2 fully charged batteries ... Hope this helps
485869
Initially it says to charge it for 4hrs then I think it takes less time after the first few charges.
1420271
I initially charged my battery once, for a full day. After that a normal charge takes 3-4 hours.
599564
for the 18,000mAh it takes almost 24 hours (from empty to full). When I know I'm going for a trip, I plug it at 8PM (at this time, the battery is EMPTY totally)and it's usually finishes at around 8 AM (almost, sometimes half an hour more is needed)