Originally Posted by ATXPro4
From what i know most esc's out there dont do any kind of running current back into the pack under breaking.
Most of the GM ESC do have this feature.
Schulze UF75 does have this function.
(It is consider an advantage to charge back the pack ... and on the some time it move the braking heat power from he ESC to the battery).
I did measure on my experimental TB01, on a free weel, with a 3S Lipo, Hacker C40 8S and a Schulze 11.61, that there has been peak up to 12.5 amp for 0.3 seconds under brake, from a top rpm (free weels).
For compensate an avarage of charge back at 6amp for 0.3 seconds, you need a capacitor of 1.8 F (for keep the voltage raise not over 1V) .... so far bigger then the biggest one used in a RC car !
If you put the car on the ground, you don't have only to brake the rotation mass ... but as well there is the energy in the car (1/2 * weight * speed * speed) ... this will cause a longer and stronger charge back.
PS: I'm not 100% sure that the diode alone can take out the charge back power. So far I never had any issue with my ESC that did force me to use a diode.
PS: About my puffed kokam ... I"m 100% sure that I did not over discharge or overcharge it ! Since it was new, I guess it should have been still well balanced !