7 Trouble shooting
7.1 General statements
Before installation read quick user guide, check operating specifications, BMS protection modes and
release conditions.
The integrated BMS protection in the battery can disable the battery function if the battery is used outside
allowed operating conditions. Refer to the BMS section in the User Guide for further information.
For battery failure analysis, disconnect the battery from the application, e.g. equipment, charger, etc.
When checking the battery voltage the battery must be disconnected from any equipment for accurate
measurement. Use a voltmeter or multimeter (DC voltage, recommended range 0-100V)
7.2 Voltage issue
The battery voltage on the terminals is 0 V
o The battery may have internal open circuit by triggered BMS protection.
o Charge the battery. Note that some chargers will not activate if the battery voltage is too low -
make sure the charger can supply power even if the battery is at 0 V. Recommended to use Exide
Li-ion charger.
o In case of no voltage output on the terminals also after above steps including attempting to charge
the battery it needs further investigation > Complete questionnaire and contact Exide dealer.
The battery voltage on the terminals is > 0 V to 21 V
o The battery may have internal open circuit by triggered BMS protection. See above points for 0 V
output.
o Battery voltage around 20 - 21 V: While this is a very low voltage it is normal but at the limit of low
voltage protection by the BMS, at this voltage the battery is fully discharged. Batteries should
never sit at a fully discharge state – recharge the battery without delay.
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