Leaderboard

Some of the maintainers come with that connector so you have a quick way to attach the charger. No harm in attaching it. The only way it could have damaged the battery is if it overcharged it for a long time. (as in the charger is defective) you can check that by measuring the voltage on the battery with the charger attached. It should not exceed 14.5 volts. For a charger to "boil" out your battery, you would see over 17 volts. Mike