Battery Tender brand has been out for decades. Only brand of charger I trust. None have failed me yet knock on wood.Listen to all the above advise - its good.
I have never heard of a "battery tender" - do you mean trickle charger?
I have no less than four battery chargers (diffrent amp's). All of them go to trickle/standby charge, once the battery gets fully toped up.
I never leave my batteries on charge for more than 48 hrs - usually just overnight.
I get cranky if a battery only lasts 5 years - my best to date was 9 years.![]()
