I purchased a grid charger for my 2002 honda insight. I recently charged the IMA batter with the grid charger. The mfg of the grid charger indicated that 174 was max charge. When I finished charging it was at 175... could I have potentially overcharged the IMA battery as of now the IMA light is on and it was never on before.. I tried unplugging the 12 v. battery to reset the IMA and after driving the car for about 10 minutes the IMA light keeps coming on.