I have a wet cell lead-acid battery. What setting do I use on the BatteryCharge25 to make sure it charges correctly? BMPRO Customer Support July 12, 2022 00:32 If you are using the BatteryCharge25 with a wet cell lead-acid battery, the correct setting to use is AGM. Related articles How to upgrade the existing J35 / BP35 to make the battery management system lithium compatible? Comments 0 comments Please sign in to leave a comment.