Enphase is the only brand with a home battery with built-in micro-inverter. This is a battery system that is connected AC-side to the PV system. The design of this battery is so compact that multiple batteries can easily be placed to create the desired battery capacity. Technically this is the same as you are used to from Enphase with the micro inverters for PV panels. With the Enphase battery the Envoy-S Metered should be used so that the system is able to measure the different energy flows and thus determine when the battery should be charged or discharged.
Advantages of Enphase:
Information on the recycling process of batteries >