Can I connect lithium batteries in parallel? BMPRO Customer Support November 23, 2020 00:45 Updated The answer depends on the internal BMS inside your lithium battery. Both BMPRO Zeal and Invicta can be connected in parallel up to four batteries - please refer to the schematic of the installation. Related articles If a lithium (LiFePO4) battery has a built-in BMS, why does the battery charger have to have a lithium setting? I am switching a Trek2 for a Trek3. Are the connections on the back the same? How do I configure my BatteryPlus35-II-HA to work with lithium batteries? I want to upgrade my caravan to use lithium batteries. What products are recommended? What type of fuses should I use for the ProBoost? Comments 0 comments Please sign in to leave a comment.