Can I add more batteries to my battery management system? BMPRO Customer Support November 23, 2020 01:41 Updated The J35D and BatteryPlus35-II-HA are capable of charging up to 600Ah of battery capacity. Related articles I want to add an external solar panel and plug it into the Anderson plug, will this work? Can I fit an inverter to my battery management system? How do I connect solar panels to my BatteryPlus35? Can I use a lithium battery with my BMPRO battery management system? 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.