12 volt VS 16 volt

[curtis reed]

Originally Posted by Ed Wright

You should ALWAYS turn your battery cut off to Off, while charging your batteries. If you checked your charger for AC output, you may be surprised. In-car race car ignition electronics hate AC voltage. Also the 16 volt chargers I have owned put out over 20 volts while charging.

No more problems since I pulled my head out, and started shutting my 16 volt batteries off while charging.

Nothing in the car "On" (or connected to the batteries) while charging.

Yep, it was an expensive lesson learned. LOL