BatteryMINDer
®
Models 128CEC1 & 244CEC1
Rev. A2-010516
Page 7
P/N VDC
128
/
244-CEC1
-QSS
beyond the point of being properly recharged or reconditioned/desulfated.
Dispose of the battery.
4.
If each cell floats three (3) or more balls (or 1250 on gauge-type), your
battery can be desulfated/reconditioned.
5.
Always rinse the tester with fresh water after every use. Failure to do so
will cause false readings.
Testing a Sealed, AGM or GEL Lead Acid Battery
These batteries have no filler caps or manifold-type covers. Because you
cannot gain access to the interior of your battery you cannot test it with a
hydrometer.
USE A DIGITAL VOLTMETER ONLY:
1.
Recharge the battery with the BatteryMINDer to ensure it is as completely
charged as possible, before you determine its condition. Allow battery to
“rest” overnight for a minimum of 12 hours before testing with a digital
voltmeter only. Failure to test a “rested” battery will cause false readings.
Be certain to read and understand all safety related instructions (pages 2
to 7) before proceeding further.
2.
Measure battery’s voltage, without any load attached. If the voltage is less
than
12.4 volts
/
24.8 volts
(Typically 50% of charge) the battery may be
too heavily sulfated to be fully recoverable. If voltage is
12.4V
/
24.8V
or
higher full recovery can be expected, given sufficient time (average 1-2
weeks for batteries that are heavily sulfated).
3.
Connect the BatteryMINDer to the battery. Charge battery to its maximum
level. Allow battery to rest for a minimum of 8 hours before retesting. If
improvement is seen, continue until battery voltage reaches full capacity
level or no further increase is seen. Refer to
Open Circuit No Load
Voltage
table.
OCV=Open Circuit No Load Voltage
OCV - “Rested” Voltage
Full Capacity
Percentage
12V
24V
12.9 - 13.1
25.8 - 26.2
100%
12.6 - 12.9
25.2 - 25.8
75%
12.4 - 12.6
24.8 - 25.2
50%
12.2 - 12.4
24.4 - 24.8
25%
12.0 - 12.2
24.0 - 24.4
0%
<11.0 = shorted
<22.0 = shorted
Note:
All OPTIMA brand starter/deep cycle batteries have a fully charged
“resting” voltage of 13.1 (OCV). Increase above values accordingly.
