Specifications

Rev. H-041409 Page 7 ` P/N VDC OBD12-24-36-48-MNL
BatteryMINDer Models OBD12-24-36-48
2. Measure battery’s voltage, without any load
attached. If the voltage represents less than 50% of
full charge, the battery may be too heavily sulfated
to be fully recoverable. If voltage represents greater
than 50% of the full charge, full recovery can be
expected, given sufficient time (average 1-2 weeks
for batteries that are heavily sulfated).
3. Charge battery to its maximum level. Allow
battery to remain for a minimum of 72 hours before
retesting. If improvement is seen, continue until
battery voltage reaches full capacity level or no
further increase is seen.
OCV -“Rested” Voltage
Gel (volts) & AGM (volts) @ 26°C
6-V
3 Cells
8-V
4 Cells
12-V
6 Cells
Full Capacity
Percentage
6.42 8.56 12.85 100%
6.33 8.43 12.65 75%
6.18 8.23 12.35 50%
6.00 8.00 12.00 25%
5.90* 7.86* 11.80* 0%
*May denote shorted cell or battery that has been
severely discharged and may not be recoverable
Note: OPTIMA brand “Yellow Top” starter/deep
cycle batteries have a fully charged “resting” voltage
of 13.1 (OCV). Increase-Decrease above values
accordingly. ■