The battery is a Vbattery 16 volt and the proper charger. I will bring a amp probe home from work and check all of my draws just to be on the safe side. I feel the battery might be at fault also but the tech guy said the voltages during and after charging were perfect. He wanted to know the voltage before charging but due to needing to load the car to go home, I had to charge for 15-20 minutes to start and load the car. If it happens again I will get him this reading. Everything I've read says the pumps, gauges, fan and ignition will be fine unless you charge without pushing the cut off switch off. Will a load tester for a 12 volt battery put enough load on the 16 volt?