FAQ\ BAT

Issue introduction

After the battery is installed, it cannot be turned on, and the button does not respond.

Confirmation of basic information

[Photo]SN numbers of inverter and batteries.

Guidance for installer

Step1: Restart the battery correctly to see if it’s back to normal.

For T58: According to the following rules, dial the DIP switch to the correct number of normal connection use based on the actual number of batteries, then move the circuit breaker switch to “ON” and press the power button to start the battery. Remember to short-circuit the last battery.

For T30：Move the circuit breaker switch to “ON” and press the power button for three seconds. When you hear the ‘Click’, the batteries have started successfully.

Step2: Check the connection of power cables and every terminal of batteries. Ensure that the cables are connected correctly and that the terminals are not damaged.

Step3:Measure the voltage of each battery.

Step2：If the voltage of each battery is above 40V and the total system battery voltage meets the inverter's minimum battery voltage requirement, use the inverter's force charging mode to recharge the batteries.

Setting path: Work mode→Work mode→Manual→Force charge

If the inverter is unable to complete force charging, and the voltage of a single battery is already below 40V, please refer to the attached T-BAT Charger user manual to perform forced charging on the battery.

https://km.solaxpower.com/index.html#doc/enterprise/362472

If one battery is still in low voltage after being charged, remove it then connect other batteries and start the system to ensure system running properly.                For T30, if the voltage is normal, try to activate the battery through PV. When the system is on grid, disable the charge from grid.

Setting path: Setting→User settings→Self Use→Charge from grid→Disable

Then wait for PV voltage to increase to startup voltage, if batteries could turn on normally, it indicates a faulty switch in the BMS, so replace the BMS.

Step4: Upgrade battery and inverter to the latest firmware version, then restart the batteries.

Information check list

If you have completed the above <Guidance for installer>, and the problem is still not solved, please collect the following troubleshooting information and send them to the Solax technical support team.

1.[Photo] Inverter and battery information including SN and registration number.

2. [Video] Progress of turning on the battery.

3. [Video] Power connection of batteries.

4. [Photo] Terminals of batteries.

5.[Photo]Voltage of batteries.