[snellemin]

Originally Posted by Pdelcast

Hi Snell,

Well, the issue is this:

The controller gives throttle to the motor, the battery voltage drops quickly below 5.8V (cutoff...)
The controller sees the battery voltage drop, and throttles down to protect the battery.
The battery voltage rises again, so the controller throttles up
The battery voltage then drops again,
and so on...

until the speed rises enough that the controller can give throttle without the battery voltage dropping significantly.

Usually caused by:

Insufficient battery
and
mismatched pinion

We see this a LOT -- and the issue is easy enough to fix.

Thanx!

Patrick

Hey Patrick,

I tried several 2s packs and some behaved better with the V-cutoff disabled. Tried a 4s pack and it got better. Basically you are right about me having sucky 2s batteries for what I'm trying to achieve. I'll get a better 2s pack and try again.

Thanks for the reply.