dazablue

When you go to charge your battery for your car. I see that the battery does not tell you of a max voltage to charge at. Does this mean i would be able to charge my battery at any voltage.

ThePanda

iTrader: (68)

You charge in amps, not volts.

Jeremy0203

iTrader: (10)

Your charger should have an input voltage range it is rated for

dazablue

I mean does it matter what the output voltage is

fq06

iTrader: (12)

You select the cell count of the pack, 2 cell, 3 cell and so on, that is the voltage that it will charge up to. Then you choose the amp rate that you want to charge at.
Most chargers will not let you charge if you have not chosen the correct cell count so there is somewhat of a failsafe there.

dazablue

When charging a battery does the voltage change the amount of time i need to put the battery on the charger.

E.g Battery = 3000mA niMh

E.g. Battery charger= output - 1A---3V
E.g. Battery charger= output - 1A---7V

Is there a difference when charging (time)
How long would i need to charge on those 2 chargers

ChuckTee

Safe to charge at 1 amp per, so if your battery is 3000mah charge it at 3 amps, 3500mah=3.5 amp charge. Hope this helps

Dave H

To an extent yes. But the first thing is what type of battery is being charged, as I see you mentioned a nimh in the other thread you started. Different types require different charge routines, and different settings.

Dave H

Perhaps best to combine the 2 threads. How many cells is the pack? Nimh are generally charged with amps controlled as mentioned earlier. The charger monitors voltage, which rises as the pack charges, then drops off when it's full. Generally, but not on all chargers, the number of cells need to be selected to help the charger know the correct point to stop, so in that sense a voltage range is selected. The chargers that don't have the selection should only be used on packs that have a number of cells within a specified range the charger is designed for.

A 1A charge rate on a 3000mAh pack will take roughly 3 hours if not a bit longer. Generally RC packs would be charged a little quicker than that though, more amps.