Follow the procedure Installing the Battery Modules, then Connecting a Single Battery Module. Power on the battery module, see Powering on the Battery Module. The added module may have a different state of charge (SoC) level compared to existing modules, this is normal and balances after a few charge/discharge cycles.
Use the power button (soft switch) to turn on the battery modules, refer to Powering on the Battery Module. Press the power button (soft switch) displayed in the following figure for 3-6 seconds, the LEDs will light. If this is a new battery, for instance not an RMA, the first green LED or the first and second green LED should light constantly.
Place the frame on top of the top battery module in the tower and secure it with the 3 screws provided in the kit. Install the battery when there is enough PV to charge the battery pack after adding the module. Make sure to turn off the CB and the power button (soft switch) on every battery module, see Connecting a Single Battery Module .
Depending on local regulations, use the left grounding terminal to connect the battery module to the inverter grounding or the main grounding. 7. Make sure the Inverter is turned off, then use the upper pair of DC connectors (BAT- and BAT+) to connect power from the inverter. Note the polarity.
Manual power on/off button - to wake up or shut down the battery module. If battery module is off, press and hold the button over 5 seconds to turn on the module. If battery module is working, press and hold the button for approximately 5 seconds to shut down the module. Battery Level LEDs - Indicates battery level.
You can connect batteries in series or parallel, with each option offering different tradeoffs. Much like connecting solar panels, it is a matter of what you are solving for, increasing the voltage or current. With batteries, though, there are a few basics you need to keep in mind before you proceed: Batteries use higher currents.