hi; today i went to garage and replaced 12v battery and they replaced to me but, i saw that this was removed and the car was working fine. i do not know about this cable what kind of cable is this is it ok to be removed?
our prius batteries go inside the car as oppose to a normal car battery, which sits in the engine compartment, outside the car. Because of this design the Prius OEM AGM batteries have a vent built in, where the venting tube attaches.
If it's not AGM type, that's "issue" number two: AGM type have a finer packed interior, much lower ability to spill, say in an accident. The gas that vents is hydrogen, BTW.