Length of Charge

[ihazard]

Hi guys just wondering if anyone could tell me the best amount of time and at what setting to charge my bty for as my charger dosnt stop when the battery is full.
it is a G&P 8.4v ni-mh 2200mAh.
Any help will be useful.


iHazard

[Fizzy]

Re: Length of Charge

http://www.zeroin.co.uk/showthread.php?t=17927

[Rogue9]

Re: Length of Charge

you need to know the out put of your charger, hes a calculation

Capacity of battery / output of charger = time in hours

3000mah battery / 1000mah charger output = 3 hours

Note 1000mah = 1 Amp so if your charger lists its output in amps, convert it to milliamps. 2.5 amps = 2500 mAh etc

Hope that helps

[ihazard]

Re: Length of Charge

so to charge my battery useing my charger that can charge at 2A it should only take 1.31 hours to charge? that seems rather short...


iHazard

[Fizzy]

Re: Length of Charge

Sounds about right. I wouldn't charge at that rate though, if you value your battery's life. Is it not a variable charger?

[Hopewell]

Re: Length of Charge

For another calculator, use my guide.. But yea, I charge all my batteries at 500mA, or thereabouts!

[ihazard]

Re: Length of Charge

Yea i can do 0.5 through to 5.5 but the guy before told me he did it at 2A is that too high?

iHazard

[Fizzy]

Re: Length of Charge

Yea i can do 0.5 through to 5.5 but the guy before told me he did it at 2A is that too high?

iHazard

If you need to charge a battery quickly, then do it, but I wouldn't do it often. Ni-Mh batteries don't like being charged at high rates of ampres. Ni-Cds you can get away with but not Ni-Mhs. I normally charged mine at around 0.8A-1A and they've lasted me a fair few years

[Hopewell]

Re: Length of Charge

Sounds like you have a varipulse charger.. so just crank it as low as you can, and go for it! Loads of battery guides out there, so fill 'yer boots!