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)

Or, hide this message: temporarily or permanently

Battery Visual Inspection (1)

Battery Visual Inspection (1):




1. CHECKING FLOW







2. CHECKING SHEET




3. LOAD TEST
1. When discharging the battery during 15 seconds at half currency of C.C.P, the voltage of battery should be over the voltage as shown.
2. When the voltage is not within specification, test 2nd load test again, and if not, do the recharge.
3. If the battery voltage (left alone within 2 hours after re-charging) is over 12.5 V and the voltage after load test is over the standard value, this battery can be used.