Instruction manual

Rev. P-071510 P/N VDC12248-MNL
BatteryMINDer
®
Model 12248
Page 11
Failure to test a “rested” (see pg. 9) battery will
cause false readings. Be certain to read and
understand all safety related instructions (pages 3
to 7) before proceeding further.
2. Measure battery’s voltage, without any load
attached. If the voltage is less than 12.4 volts
(Typically 50% of charge) the battery may be
too heavily sulphated to be fully recoverable. If
voltage is 12.4-V or higher full recovery can be
expected, given sufficient time (average 1-2 weeks
for batteries that are heavily sulphated).
3. Connect the BatteryMINDer to the battery.
4. Charge battery to its maximum level. Press
Maintenance-Float (select Battery type) button, if
it does not go into this mode automatically. 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.
Note: OPTIMA brand “Yellow Top” starter/
deep cycle batteries have a fully charged
“resting” voltage of 13.1 (OCV). Increase
above values accordingly.
OCV - “Rested”
Voltage
Full Capacity
Percentage
12.9 - 13.1 Volts 100%
12.6 - 12.9 Volts 75%
12.4 - 12.6 Volts 50%
12.2 - 12.4Volts 25%
12.0 - 12.2 Volts 0%
<11 Volts
= shorted
OCV=Open Circuit No Load Voltage
TABLE 2