Running carputer with engine off-what is a safe voltage to run the battery down to?
I'm just curious. Sometimes I run my carpc off the battery just to do some random stuff like syncing my music collection. I know that deep discharging lead acids is a bad idea. Could someone give some general rule as to how low I should run my standard lead acid battery down to? At what voltage should I turn off my computer to ensure that there is still plenty of juice to start my car, and to not damage the battery?