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Ed Wright · 02-04-2019, 01:36 PM

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 DC while charging. As many as 5 or 6 AC. MSD stuff hates that.

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.

02-04-2019, 01:36 PM	#9
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: 12 volt VS 16 volt 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 DC while charging. As many as 5 or 6 AC. MSD stuff hates that. 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. __________________ Ed Wright 4156 SS/JA Last edited by Ed Wright; 02-04-2019 at 08:04 PM.