Are you guys testing the battery cells under load charging and recharging?
I get the check battery light every 100 miles or so because I am sure some of my cells are weak, but I use a portable hand scanner to erase the code and the car drives fine for awhile.
When the CEl comes on sometimes the gas engine still runs when at a stop or idle when the batteries are full, when t should not
JVasquez even if the batteries are in bad shape if the car starts it doesnt need the hybrid juice the gas engine should be on all the time if there is gas in the tank.