8.5. Faults and remedies
Fault observed Probable origin Measures or observations
The acid heats up when a new battery is
filled
- Incorrect composition
- Incorrect storage
- Prolonged storage in a damp place
- Cool
- Load
- Check the acid density
The acid escapes through the filler holes - Overfilled battery - Reduce the battery fluid level
Acid level too low
- Battery tray not leaktight
- Excessive charge voltage leading to
a significant accumulation of gas.
- Replace the battery
- Check the charger and repair if
necessary.
Acid level too low
Incorrect operation from start-up
- Insufficient charge
- Short circuit in the power circuit
- Consumption fault
- Recharge
- Check the electrical installation
Acid density too high
- The battery has been filled with acid
instead of battery fluid
- Reduce the acid level by filling with
distilled water. Repeat the operation if
necessary.
Starting problems
Starting test incorrect
- Battery empty
- Battery exhausted or faulty
- Capacity too low
- Battery sulphated
- Recharge the battery
- Fit a new battery
Battery terminals melted
- Incorrect electrical connection
- Battery cabling incorrect
- Tighten the ends of the battery
cables, or replace them if necessary
One or two cells release a lot of gas at
high charge
- Cell(s) faulty - Fit a new battery
The battery discharges very quickly
- Charge status too low
- Short circuit in the current circuit
- High self-discharge (through
electrolyte contamination etc.)
- Sulphation (storage of discharged
battery)
- Check the load
- Replace the battery
Short service life
- Incorrect battery part no.
- Repeated deep discharging
- Battery stored too long without
charge
- Define the correct battery part no. for
the recommended use
- It is recommended to charge the
battery using a regulator
High water consumption
- Overload
- Charging voltage too high
- Check the charger (voltage regulator)
The battery explodes
- Spark after battery charging
- Short circuit
- Connection or disconnection during
charging
- Internal fault and low electrolyte level
- Replace the battery
- Ventilate well
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