bettery charging time euqation?! I'm confused....

[Gunny_McSmith]

hi, for now, I'm using a wall charger(output 500mah) for my crane stock battery, (G&P 2200mah)

but when searching on the internet, I found 2 equations for the charging time...

some say that it's ''mah of battery/mah of charger''
and others say that it ''mah of battery*1.5/mah of charger''

so now I'm confused, and dunno wich equation to use for the charging time....

PS: Yes I'll buy a smart charger really soon!

[ujiro]

If it is NiMH, you should use the second equation, with *1.5. They don't hold quite all of the charge that they take in, so you need to charge it a little longer than the theoretical battery mah/charger mah

[Dart]

I am charging my battery 8.4 2400mh at 2400mh *2.4 amps*

But I can tell that you have a better battery *bettery* but your forgiven as your french lol

[Gunny_McSmith]

thx ...and yes I'm french...lol

[Qlong]

There should not be a variable of time ('h' as in hour) on the charger, it should just be expressed in Amps (A) or Milliamps (mA).



Using this equation, you see the Milli-amps cancel out, leaving you with the Hours need to charge.

[Gunny_McSmith]

Originally Posted by Qlong

There should not be a variable of time ('h' as in hour) on the charger, it should just be expressed in Amps (A) or Milliamps (mA).



Using this equation, you see the Milli-amps cancel out, leaving you with the Hours need to charge.

but isn't that the ''theorical '' equation... (like if it would be in the perfect conditions it would be like that...) but since it's a NiMH, we have to use a factor 1.5...

[Qlong]

Oh, in that case, its 150% of the battery capacity. So 1.5 multiplied by the time.

[Dart]

or more commonly expressed as 1.5c