Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Battery: Testing and Inspection





Inspection
Battery discharge test


Terminal and cable
Removing the label on top of the battery or removing the vent caps will void the battery's warranty.

NOTE:
^ Because this is a maintenance-free battery, it is not necessary to check the fluid level.





1. Verify that the battery top is clean. If necessary, clean with baking soda and water
2. Verify that cables are in good condition and not frayed or corroded. Repair or replace if necessary.
3. Verify that cable clamps are tight.