I have a wet cell lead-acid battery. What setting do I use on the BatteryCharge15 to make sure it charges correctly? BMPRO Customer Support July 12, 2022 00:32 If you are using the BatteryCharge15 with a wet cell lead-acid battery, the correct setting to use is AGM. Related articles My BatteryCharge15 is showing a red LED. What is happening? Can I add more batteries to my battery management system? Comments 0 comments Please sign in to leave a comment.