Can I fit only libbi batteries to an existing inverter? Sophie Burgess 02 February 2023 10:52 Updated The libbi system can only be bought in its entirety; that includes the inverter, battery module(s) and controller. Related to libbi inverter existing inverter existing libbi inverter Related articles If I have an existing inverter and battery and install a libbi alongside it, can the libbi controller be connected up to control both systems? Can the battery system be added to the PV set up I already have, without swapping the inverter? Will libbi work with 2 or more libbi inverters running on the same supply for those with larger generation or supply demands? Does the libbi work in conjunction with solar optimisers? Using a battery with your myenergi system Comments 0 comments Please sign in to leave a comment.