What are the compatible battery specifications for the FlexES panel, and what is the procedure for battery replacement?

The FlexES panel uses 12 V DC batteries connected in series to provide 24 V DC, with supported capacities of 12 Ah or 24 Ah (Page 11, 49) [1].

Each power supply module (PSM) can support a maximum total capacity of 48 Ah by connecting four 24 Ah batteries (two per battery connector) (Page 51) [1].

All batteries connected to a single PSM must be of the identical manufacturer, manufacturing date, and capacity (Page 25, 51) [1].

Battery Replacement Procedure

1. Power Down: Remove all power from the panel before starting installation work (Page 6) [1].

2. Verify Voltage: Ensure new batteries have a terminal voltage of at least 21 V DC; if lower, they will not charge automatically and must be charged externally (Page 49) [1].

3. Installation: Fit batteries into the designated housing (FX2 for 12 Ah; FX10/FX18 or extension housings for 24 Ah) (Page 49, 51) [1].

4. Wiring: Connect batteries to the Battery 1 or Battery 2 terminals using the required cable with an integrated temperature sensor (Page 51) [1].

5. Configuration: Program the actual connected battery capacity into the system using the tools 8000 software to ensure proper charging (Page 40, 51) [1].

6. Commissioning: Charge new batteries for at least 24 hours (or 48 hours if the batteries are more than nine months old) before system startup (Page 48) [1].