Description

Alpha ESS Smile5 Extension Accessory Pack for 2.9kWh:

A Single Extension Pack System.

Extension pack: used to extend your Alpha ESS Smile5 system with M4856-P 2.9kWh battery. 

One Extension Pack per System is required, regardless of how many additional batteries are used. 

Not suitable for Alpha SmileB3 with M4856-P 2.9kWh battery.  For the B3 version, use part number  ALPH-BAT-EXT