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Just remember that modern car electronics stress the hell out of a car battery during car use and they don't last as long as they used to.
by AtlasBarfed 6y ago
Just remember that modern car electronics stress the hell out of a car battery during car use and they don't last as long as they used to.
- sandworm101 6y agoIf your engine is running, your battery won't even feel those electronics. Your alternator/rectifier is pumping 13.9v so long as the engine is turning. Your 12v battery definitely should not be drained by anything unless at a very low idle/off.