Recent content by BigRod420ziljian

I need help with my 2023 Nissan Sentra. I put a taramps 3k smart and 2 xs power batteries d3400 can't seem to find out why the voltage continuously stays at 12.6 when idle, when on the highway , voltage reads 13.3 volt when I let off the gas and then when I accelerate it goes back down to 12.6...