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
If it fails: lemon-manuals.org.ua

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Overcharged Battery




1. Determine battery condition.
2. If obvious overcharge condition exists as evidenced by excessive spewing of electrolyte, proceed to disassembly of generator service and check field windings for grounds and shorts. If problem exists, replace rotor.
3. With engine running at 2,000 rpm, measure voltage.
4. If measured voltage is out of standard value, check brush ground or IC regulator.