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

Fluid Level and Specific Gravity Inspection

Electrolyte level and specific gravity checks

CAUTION:
Because it is the maintenance free battery, the electrolyte level and specific gravity checks are not performed.

NOTE:
To maintain the battery performance, never remove the label or top lid.