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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

General Information

^ Use a charger, with an end voltage of 16 V, equipped with a voltmeter that is accurate to within 1 percent.
The ambient temperature should be 15-38°C (60-100°F). A battery that is extremely cold will not accept immeasurable current for several hours after starting the charger.
^ The charging area should be well ventilated.






^ Do not charge the battery when the built in hydrometer is clear or yellow (3). Replace the battery if there is a cranking problem. Do not charge a battery that appears to be frozen.
^ Batteries showing a green dot in the hydrometer (1) do not need to be charged unless they have just been discharged (such as cranking the engine).