Thread Tools
Sep 05, 2003, 02:59 PM
Registered User

Reducing the voltage of a 3 cell Li-poly pack?

Has anyone tried to reduce the voltage of a 3 cell pack to be 9.6 volts instead of the 12.6 that a 3 cell 4.2 volt per cell would give. The reason I ask is that in some cases a two cell would not give me the performace I want as compared to 8 cell Kan pack. But a 3 cell pack would cause me to either have to prop down or gear the motor differently. So I was wondering if it was possible to restrict the voltage to keep the same prop and/or gearing but get the duration and weight benefits of li-polys.
Sign up now
to remove ads between posts
Sep 05, 2003, 03:46 PM
Senior Member
soren's Avatar

Re: Reducing the voltage of a 3 cell Li-poly pack?


The only practically way to reduce the voltage is to use the speed controller - don't give full speed!
....i know that this not was what you were thinking about - but some kind of step down power supply that can handle 10, maybe 20 A is heawy, hot, and not easy to make....

Good luck

Sep 05, 2003, 03:53 PM
Registered User

Thanks for the information.

I guess I always to restrict the throttle travel to do the same thing.

Sep 05, 2003, 04:34 PM
Registered User
vintage1's Avatar
Yes. You can maybe use the throttle trim - set it to full throttle when you arm, then as soon as it is armed pull it back. That way you are unlikely to over voltage the motor accidentally.

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
3 Cell Li-Poly Batteries with GWS ESC and EDF "H-type" NightOwl GWS (Grand Wing Servo) 10 Oct 08, 2003 01:01 AM
8 cell nicad compared to 3 cell li-poly Megowcoupe Batteries and Chargers 1 Oct 07, 2003 03:56 PM
3 Cell Li-Poly Batteries with GWS ESCs NightOwl Power Systems 4 Sep 30, 2003 04:29 PM
Servo count with 3 cell li-poly KenP Castle Creations 1 Sep 15, 2003 06:45 PM
Slowstick w/ 3 cell li-poly 1200mah Kcampa Power Systems 3 Sep 13, 2003 07:03 PM