FixVault

Using Battery Voltage Method

  1. Inspect the battery as follows after removing the battery filler caps, checking the water level, and adding water to the appropriate level if needed:
    Step Inspection Results Action
    1 Measure the battery positive voltage. 12.4 V or more Go to Step 3.
    Less than 12.4 V Go to the next step.
    2 Quick charge for 30 min and recheck voltage. 12.4 V or more Go to the next step.
    Less than 12.4 V Replace the battery.
    3 Using the battery load tester, apply load current (see battery load test current) and record battery voltage after 15 s  . Is voltage more than the specification? Yes Normal
    No Replace the battery.

    Battery load test current 

    48A.h/5HR, 60A.h/20HR: 180 A 

    52A.h/5HR, 65A.h/20HR: 195 A 

    STANDARD SPECIFICATION

    Battery temp. (°C {°F}) Minimum voltage (V)
    4 (39} 9.3
    10 (50} 9.4
    16 (61} 9.5
    21 (70} 9.6