TB 9-6140-252-13
BUSS BAR MULTIPLE BATTERY CHARGING
INITIAL SETUP:
References
Equipment Condition
Pre-charging procedures completed. (WP 0005)
GENERAL
This task is intended for use by military battery shops or units with chargers that will handle more than one battery
at a time.
CAUTION
When hooking up batteries, large amounts of current are available even in discharged
batteries. Make sure all leads are clear; avoid making contact with any material but the
intended battery post. Attach all the positive (+) terminals first then the negative (-) terminals.
Disconnect in the reverse order, negatives (-) first. Do not mix battery types (such as
flooded 6TMF and AGM) on the buss during chargin. Failure to comply may result in
equipment damage.
NOTE
Group batteries for charging by Open Circuit Voltage (OCV). Group ranges are
0 to 5.9 VDC; 6.0 to 9.9 VDC; 10.0 and above. Ideal voltage spread of the group is no
more than 3.0 VDC and can cross groups (i.e. OCV= 4.4 to 7.4 VDC).
Batteries connected to a standard constant applied voltage buss bar charger set should
have voltage adjusted to between 14.7 volts and 15.2 volts. Clamp wiring and contacts
must be tight and clean with minimal corrosion to assure good connections.
These settings should result in approximately 14.7 volts to 15.2 volts applied potential
when measured at the battery's terminals at the end of the charge period.
Do not use values listed for the vehicle's voltage regulator setting. Consult the
appropriate Technical Manual (TM).
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03/15/2011Rel(1.8)root(opusualwp)wpno(O00005)