Batteries not charging properly

My batteries show up as green but when I plug them into my robot brain and run driver control the battery dips down to red. It only happens while I am say driving and lowering my arm at the same time. The batteries are relatively new and have had no previous problems. Any suggestions?

Probably reset them or update firmware.

They don’t have firmware or a way to reset
The red light would show I guess if the voltage dipped too low. You’d see this under big loads but probably only if the battery wasn’t good and had a bad cell.
@Kajunii42 do you still get a good overall run time and performance from the battery regardless?