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 logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Battery Precautions


WARNING: When working with batteries observe the following precautions:

1. Never use a booster/starter which has a voltage rating above 12 volts to start engine.

2. Always ensure the battery is properly connected to the vehicle prior to attempting to start engine.

3. Do not disconnect the battery when the engine is running.

4. When charging a battery, be sure battery cables are disconnected.

5. The battery contains highly corrosive electrolyte (acid) and produces explosive gases (hydrogen and oxygen). Avoid getting electrolyte on skin, clothing, or painted surfaces, and do not create any sparks near the battery.