BatteryMINDer 12248-AA-S1 - Manual (Page 11)

Rev. F-103007 P/N VDC12248AA-S1-MNL
BatteryMINDer ® Model 12248-AA-S1
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.
Select type of 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: Do not expect to completely eliminate
sulphate in a few days. Long established sul-
phate will require several weeks or longer to
be fully dissolved. Be patient and you will be
rewarded with a “sulphate-free” battery.
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