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View Full Version : Question about the Duratrax ICE charger


fabricator
12-27-2005, 09:49 PM
I'm charging 2100mAh 11.1's and it takes this thing an hour and a half to fully charge, is this normal?:confused:

Rhondas
12-27-2005, 11:35 PM
you should be charging at about 2 amps ,it should take 10 to 15 minutes

d-bledsoe
12-27-2005, 11:50 PM
i have that charger and love it, i also have the same battery packs, i could charge at 2amps but i dont, i charge at 1.5amps and it takes about an hour. i dont see how adding an extra .5 amps would cut the time down to 15 minutes though, thats quite fast.

my guess is you are charging at what 1 amp or so, you can try bumping it up to 2 amps and that should about cut your charge time in half
-derek

fabricator
12-28-2005, 12:21 AM
Thanks guys, I'll try the 1.5 first and see what happens.

nate1001
12-28-2005, 01:54 AM
If you charge your battery at 1c( 1 times the capacity) it should take a little over an hour to charge from fully dead. The only lithium battery that ca charge in 15 minutes would be the new cells from fma

fabricator
12-28-2005, 02:03 AM
I set it for the maximum at 2.1 amps and it took one hour and fifty five minutes to charge the 2100, something aint right here, it charges at 2.1 for a little while and then drops down to like .23 amps for the last three quarter of an hour.:confused:

nate1001
12-28-2005, 02:48 AM
Thats how the cc/cv charge works. It keeps a constant current until it reaches 4.2 volts per cell and then varies the current to keep the voltage constant until the current reaches .1 amps then it says its done, but keps charging until it reaches 0. For some reason the ice beeps its done at .1 amps while others just stop

Car&Bike Racer
12-29-2005, 07:24 PM
If you charge your battery at 1c( 1 times the capacity) it should take a little over an hour to charge from fully dead. The only lithium battery that ca charge in 15 minutes would be the new cells from fma

1:30 is about right.

You can only charge around 80% of the capacity at 1C. So the first 80% will take around 50mins at 1c, then to put the rest in might take another 40 minutes as the current slopes down to nothing.