Instruction manual

Rev. P-071510 P/N VDC12248-MNL
BatteryMINDer
®
Model 12248
Page 25
MAINTAINING MULTIPLE BATTERIES
BatteryMINDer 12248 maintenance charger
Desulphators can be used to maintain up to six
(6) 12-volt batteries at a time, providing each
battery is fully operational (no dead-dying cells),
free of sulphate and meeting the minimum full
charge “rested” (see pg. 9) voltage of 2.13 volts
/ cell, after being fully desulphated. Press the
Maintenance - Float charge button immediately to
ensure BatteryMINDer is in the proper mode for
maintenance charging-desulphating, immediately
after making proper connection to the batteries.
ALL batteries Must be properly tested to ensure
they are in good condition (no dead-dying cells
or excessive sulphation) before maintaining
them in multiples. Only healthy, fully desulphated
batteries should ever be MAINTAINED in sets of
2 or more. Test each cell of All filler cap batteries
using an accurate, temperature compensated
hydrometer. Test sealed (no filler caps) batteries
using an accurate, DIGITAL type ONLY, voltmeter.
The Minimum voltage Must not be less than 2.13
volts / cell after fully charging battery and letting
it “Rest*” for 12 hours minimum, before testing. If
battery voltage is less than 2.13 / cell you must
first desulphate it until you reach a “Rested*”
voltage of 2.13 volts / cell.
Attempting to desulphate more than one (1)
battery at a time will yield very poor results, as the
strongest (healthiest) and not the weakest (most
sulphated) battery will receive the majority of the
desulphation pulse energy. Exception is when
two batteries are identical and have been used in
parallel or series with each other during their entire
life.
Never mix batteries of different type construction
/ chemistry, or condition (old with new). ALWAYS
test each individual battery to be certain it is
healthy and free of sulphate before attempting to
charge or maintain them, either as a single battery
or in sets. NEVER connect multiple batteries
together for charging purposes using less than
#18 Gauge insulated wire.
(*see pg. 9)