Regularly check the connections of the battery terminals and connectors to ensure they are secure. To prevent oxidation of the terminals, apply a protective agent such as petroleum jelly.
The vent holes on the battery cover must be clear, as the battery generates a large number of air bubbles during charging.
If the vent holes are blocked, gas cannot escape. When the pressure increases to a certain level, it can cause the battery casing to burst, which is extremely dangerous.
Never use a short-circuit test to check the battery charge, as this will damage the battery.
If the electrolyte level is found to be low, add distilled water or a special lead-acid battery electrolyte solution. Never use drinking water as a substitute.
When using an Volkswagen Electric Car, gently press the accelerator pedal; otherwise, a sudden large current discharge can damage the battery. The battery should always be kept at a saturated level to extend its lifespan.