Trouble Shooting Steps; Problem Determination Based On; Preliminary Determination Steps; The Battery Cannot Be Charged Or Discharged - Pylontech UP2500 Product Manual

5. Trouble Shooting Steps

Please always check the 'LED Indicators Instructions' table for the detailed faulty definition before
any trouble-shooting steps.

5.1 Problem determination based on:

1) Whether the battery can be turned on or not;
2) If battery is turned on, check the red and yellow light is off, flashing or lighting;
3) If the red light is off, check whether the battery can be charged/discharged or not.

5.2 Preliminary determination steps:

1) Battery cannot turn on, switch on the lights are all no lighting or flashing.
If the battery external switch is ON, and the external power supply voltage is 26V or more, the
battery still unable to turn on, please contact distributor.
2) The battery can be turned on, but red light is lighting, and cannot charge or discharge. If the
red light is lighting, that means system is abnormal, please check values as following:
a) Temperature: Above 55℃ or under -10℃, the battery could not work.
Solution: to move battery to the normal operating temperature range between -10℃ and 55℃
b) Current: If current is >100A, battery protection will turn on.
Solution: Check whether current is too large or not, if it is, to change the settings on power supply
side.
c) High Voltage: If charging voltage above 28.5V, battery protection will turn on.
Solution: Check whether voltage is too high or not, if it is, to change the settings on power supply
side.
d) Low Voltage: When the battery discharges to 23.2V or less, battery protection will turn on.
Solution: Charge the battery for some time, the red light turns off
Excluding the four points above, if the faulty is still cannot be located, turn off power switch of the
battery and repair.

5.3 The battery cannot be charged or discharged

1) Cannot be charged:
Disconnect the power cables, measure voltage on power side, if the voltage is 23.2~28.5V, restart
the battery, connect the power cable and try again, if still not work, turn off battery and contact
distributor.
2) Unable to discharge:
Disconnect the power cables and measure voltage on battery side, if it is <23.2V, please charge
the battery; if voltage is above 25V and still cannot discharge, turn off battery and contact
distributor.
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