NinerBikes wrote:
That getting them up to 7.75V,( 8.0V would have been better,) once or twice a year is what makes batteries like that get de sulfated, and last a long, long time.
Getting them topped off as soon as a trip is over, is beneficial to the chemistry inside them.
Some folks understand the electro chemistry inside a battery, and will make the effort to do what it best for the battery. Others have a different level of threshold for amount of care they'll provide for their deep cycle batteries.
I agree on the 8.0V, and I think trojan wants you to get them above 8V, but my puny Harbor freight charger won't go much above 7.75V on 6V setting. So that's what I've been living with.