how do you figuer out how many watts it would take to charge a battery pack like a 25c 2200ma 3s pack or a 30c 2600ma 6s pack? would like to see if i can chage these packs at 2c or 3c with the cellpro 10s
11-13-2008 08:16 PM
Drunk Monk rrProfessor Location: Preston, UK
watts= I(current in Amps) X Volts
Stephen
I only open my mouth to change feet.....
11-13-2008 09:02 PM
joecass Senior Heliman Location: NJ
so for the 25c 2200ma 3s pack i would go 2.2amps X 11.1 volts this give me 24.42 watts that can't be right
11-13-2008 09:26 PM
RaptorBee Senior Heliman Location: Minnesota
Yes, 24.4Watts is correct for a 3s 2200 pack at 1C (11.1 x 2.2). A 6s 2600 pack at 2C would be 115W (22.2 x 5.2).
Compass Atom T-Rex 450SE Mini Titan
11-13-2008 09:32 PM
MrMel Elite Veteran Location: Lidingo, Sweden
Dont forget that fully charged a pack is 4.2v /cell
So to go fullspeed on a 3s it need 12.6 * amp = watt
Team Autopartner - Team pilot
11-13-2008 09:40 PM
joecass Senior Heliman Location: NJ
ok so at 12.6v 2200 pack would use up 27.72 watts. way on the lable it is 11.1v. thanks for the help
