Tigo EI - Add Batteries

The EI Battery – Add Batteries
EI Residential Solar Solution US Installation Manual | www.tigoenergy.com | Help Center 41
Add Batteries
You may add:
• One or three more batteries using a parallel connection.
• One battery using a serial connection (legacy installations only).
To add one battery in parallel:
1. In the battery expansion wireboxes, connect an RJ45 (CAT5/6 T586B) cable from the
battery #1
COM Parallel plug to the battery #2 COM Parallel plug.