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 Built-In Hydrometer Check

NOTE: Before testing battery, lightly tap eye of hydrometer to ensure that gas bubbles have not lodged themselves in hydrometer. If battery needs replacement, check charging system for proper operation.

IMPORTANT: Do not charge a battery with a clear or yellow indicator.







Tap lightly on the eye and observe the built-in hydrometer.

IMPORTANT: Check electrical system before replacement.