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When connecting your battery, connect the positive (red) first and the negative (black) second. When removing the battery, disconnect the negative (black) first and the positive (red) second. Been doing this for nearly 30 years. ALWAYS connect the positive post first.
1 You can jump-start the battery with jumper cables if you do not have a battery charger. 2  There are different types of RV battery chargers that you can use. 3  A 3-stage charger works well because it will slow down as it reaches a full charge, so you don't have to keep an eye on it the whole time it is charging.ips. 1  You can jump-start the battery with jumper cables if you do not have a battery charger. 2  There are different types of RV battery chargers that you can use. 3  A 3-stage charger works well because it will slow down as it reaches a full charge, so you don't have to keep an eye on it the whole time it is charging.