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)

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Battery, Charging






Battery, charging




It is important that the battery voltage is normal (approximately 12 V) when testing the car system components. If necessary a battery charger can be connected during the test.
Connect the battery charger to the battery terminals. Charge the battery for approximately 10 hours at the recommended current - maximum 6 A.
Example: If the battery is marked 520 A, the recommended charge current is 0.01x520 = 5.2 A.
A higher than recommended charge current may damage the battery.

Note! Boost charging (with a high current or voltage above 16 V) will damage the battery and is prohibited.

Warning! Explosive oxyhydrogen accumulates when the battery charges. Smoking, welding, grinding or other activities involving sparks or naked flames are prohibited in the vicinity of a charging battery. Only charge the battery in a well ventilated area.