Cleaning And Checking Batteries
CLEANING AND CHECKING BATTERIES EXTERNALLY
Cleaning
- Remove the battery from the car. Always disconnect the negative terminal first to prevent sparking
- Check that the battery is clean. Dirt can cause leakage currents between the battery posts
- Wash the battery using water. A mild cleaning agent can be used if necessary. Ensure that no dirt or water penetrates any of the cells
- Wipe clean and dry.
External checks
- Check the battery for signs of the following damage and remedy as necessary:
- Dirty or loose posts
- The battery is not secure and is loose in the engine compartment or cargo compartment
- Worn, oxidized or damaged battery leads.
- Discard the battery if any of the following faults are found:
- Cracked container
- Leakage
- Bent, loose or damaged terminals
- Battery damaged by freezing.
- Reinstall the battery in the car after checking it. Connect the positive terminal first
- Check that the battery is secure in the engine compartment or cargo compartment.
WARNING:
The battery can develop oxyhydrogen, which is highly explosive. Ensure that any evacuation hose (the hose which evacuates oxyhydrogen) is correctly connected to the battery and that the hose leads downwards to the dedicated outlet in the bodywork
CHECKING BATTERY ACID
measurement of the battery electrolyte level and density/weight does not need to be carried out on Volvo's maintenance free batteries. All Volvo's batteries have been maintenance free since 2005, even if they have screw caps on the upper side of the battery. From 2012 onwards most of Volvo's batteries are sealed so that there are no screw caps.