How long to charge dead battery 60Ah?
1058680
A 10Ah charger (in perfect conditions) would take 6 hours to charge a fully discharged 60Ah battery. Temperature and overall condition of the battery will make that time vary in the real world. P.S. Be wary of the Noco Genius warranty. My Noco Gen 20 amp charger went bad and they only offered me 20% off a new charger if I wanted to buy another one....NO THANKS
1058681
Use formula T=Ah/A. Time of charging battery=Amp/hr divided by charging current. Due to loss and other factors it may take up to 40% additional time.
2157298
It all depends on battery condition. A 600cranking amp truck battery takes 3 hrs when 2 yrs old. At 4 years 20-24 hrs..beyond that age and in bad condition. 36 to never fully charged
1275226
Adapter supplies 250ma. so 700MAH batteries should take about 3 hours to charge, after the initial charge of about 5hrs.
958989
Leave it in the charger as long as you want and it won't hurt the battery. It takes about 9 hours to fully charge. Therefore, I suggest you have two batteries.
1428954
Dingo, Ran my battery to empty and it was a 9.7 kWh deficit. (Meant to use kWh instead of kW earlier.) The charge indicator showed about 3 hrs. 15 mins, for 240v, 9 hrs 30 minutes for 120V 12 amp. Plugging it in at 7 Amps, the meter readjusted to 14 hrs. 45 min. for 7 amps. So recharging a Volt takes about 15 hours vs. 9.5 hours for 12 a. You should adjust your charging time to the capacity of the battery bank.
694396
It usually takes 2-3 hours from completely dead to completely charged. The LED will change from Red to Blue once it's full.
1114502
I can charge my radios from completely dead to fully charged in less than 8 hours. If you charge for over 24 hours and still can't get a full charge, either your battery pack needs to be replaced, or your charger is defective.
1414343
If the Leaf computer estimates a low range such as 15km remaining then it takes about 4 to 5 hours to bring it back to 100% charge. We charge at night when the electricity is cheaper. We often charge to 80% since this will extend the life of the battery. Good luck and consider the AeroVironment EV charger for purchase...it is a very good unit! Cheers Bill
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.
1233124
You don't....just replace the old battery with the fresh one...it will take anywhere from 24 to 48 hours. It may seem like it is a dud, but give time and hopefully, it recharges as expected (30-days to return if you suspect it to be a real dud). My replacement took about 30 some hours to be fully charged. In the mean time, I kept getting some odd codes from on my Ademco panel. Once sufficiently charged, the codes went away. Oh, yeah, after sufficiently charged, it gave me a code that my battery in the motion sensor also needed to be replaced. My old battery and the motion sensor battery lasted more than six years.
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.
1198446
I had a dead battery last month. Left this wagan charger for 20 minutes. No go! I shall use it as my backup battery for my smartphones.
1799217
I havent timed it myself but I would say from complete dead to recharged , 1 1/2 to 2 hours
1586757
This charger's max charge rate is listed at 5.0 A (5000mA). From here you just do the math... mAh = milliAmphours. If your battery is a 1600mAh capacity, that means you can run an electronic device drawing 1600mAh for 1 hour before your battery is exhausted. The same thing applies to charging. If you want to charge your 1600mAh battery at the 5000mA rate, it would be 1600/5000 = 0.32 * 60 minutes = 19.2 minutes total charging time. For your 3200mAh battery, it would be 38.4 minutes. Hope that helps!
1735393
Your in luck as I happen to work for Stanley Black and Decker. If you started at 12.8VDC you already had a partial charge. 6 hours to top off the battery is a reasonable expectation. For a fully discharged unit (~12.2V) charging a minimum of 12 hours is recommended. This unit uses polymer lithium cells that dump their energy extrememly fast. Its the only reason this thing works at all. It is meant to assist a weak battery not jump a dead one!
641418
My best calculation says about one hour on a fully charged 160 AH battery. That would reduce the battery to half charge, and you don't want to go lower.
1918625
I haven't monitored to see exactly how long it takes to charge from dead to full charge, but I think 8-10 hours should be enough.