The SMILE B3 system has an all-in-one AC coupled design with an integrated battery that is popular with small households with installed PV panels. The SMILE B3 system can power 3kW of loads.

This system is very easy to install and set-up.

In addition, its flexibility to add on more battery units (up to 17,4 kWh) with actual plug-and-play installation has been highly needed in the solar storage market.