Samsung SGH-G800 Cellular Phone "car lights dim battery light" Questions

...car chargers can harm battery life?especially if that is all you?ve ever used. Also check the settings on the phone, if you have disabled power saving features that dim the screen after so many ...

...lights never flashed. Car Battery was recently changed & I think that after that is when my Spouses key less remote stopped working. the only other thing that might be relevant is we had trailer ...