Does A Trickle Charger Need To Be Plugged In. If you have a smart charger that will trickle charge your batteries you may leave it plugged in but if you have an older RV this will do lots of damage. What is a Trickle Charger.

A battery conditioner can take up to four weeks to break down lead-sulphate deposits and condition your battery to take a full charge. And the trickle charger is just that. Although automatic chargers will remain shut off until the battery needs a charge disconnect it to prevent the unintended crises.
Do not touch the wires while the charger is plugged in and turned on as serious shock or injury may occur.
If you have a new RV with a smart charger it will trickle charge your batteries. If left plugged the circuit might trip or fuse blown to turn the charging back on and damage your battery. A battery conditioner can take up to four weeks to break down lead-sulphate deposits and condition your battery to take a full charge. A trickle charger is the best way.

