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

When it is necessary to charge the battery, the following basic rules must be followed:
1. Do not test or charge battery when hydrometer is clear or light yellow. Replace battery.
2. Monitor battery while charging.
3. Discontinue charging or reduce charging rate when the battery feels hot, 52°C (125°F), violent gassing occurs or electrolyte is discharging through the vent holes