Using Battery Voltage Method
- 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 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
- 55D23L (48): 180 A
- 75D23L (52): 195 A
STANDARD VOLTAGE SPECIFICATIONBattery temp. (°C {°F}) Minimum voltage (V) 4 {39} 9.3 10 {50} 9.4 16 {61} 9.5 21 {70} 9.6