SD540 Motor Controller

[Chris is me]

Originally Posted by pnitin

If you are letting down your battery 9.5 V your are basically killing your battery( actually 10.8V that is 1.8V per cell).
Lead-Acid battery will quickly built lead sulfide layers on plates ( no matter what is battery technology and what manufacturer claims)
you are basically screwing up battery and now it will have much high internal resistance so the you will start seeing voltage drop when you try to take out good amount of current.

Momentary drops to 9.5vs are not at all uncommon in FRC matches, depending on the number of motors on the machine, weight, traction, etc. It might not be great for batteries but I'd rather be able to drive for the rest of the match and potentially shorten a battery's life than not be able to drive to save a couple of bucks later on. Basically, I don't want the products I use to try and protect me from myself.