PS Magazine - TB 43-PS-664

PS, The Preventative Maintenance Monthly

ISSUE 664

MARCH 2008
PS Magazine - TB 43-PS-664 - Page 7 of 33
10
PS 664
MAR 08
The technology built into Hawkers allows them to be recharged to full service
from a fully discharged state multiple times. It comes 90% charged, sealed and air
transportable as non-hazardous material.
Battery chargers designed for these
batteries include NSNs 6130-01-398-
6951,
6130-01-
532-7711,
and
Other chargers can be used, too, but
some chargers have been known to
overcharge these batteries, so close
monitoring is vital during the
Frst two hours.
Maintenance Tips
•
±ield maintenance should continue to service the Hawkers
in accordance with the
applicable vehicle TMs; TM 9-6140-200-14,
Operator’s, Unit, Direct Support and
General Support Maintenance Manual for Lead-Acid Storage Batteries
; and TB
9-6140-252-13,
Field and Sustainment Maintenance and Recovery Procedures for
Automotive HAWKER ARMASAFE Plus Battery, NSN 6140-01-485-1472
.
•
DO NOT attempt to add any fluid to
Hawker batteries. This will cause permanent
irreparable damage to the batteries.
•
Tankers, the voltage regulator, NSN
6110-01-233-1135, currently used in M1-
series tanks has a charging rate that can be
too high for Hawker batteries, especially in
high heat or high use situations. This voltage
regulator can overcharge the batteries and
lead to “thermal runaway.” So use voltage
regulator, NSN 6110-01-540-7819, with the
Hawker battery, instead.
By the way, thermal runaway is a condition where the battery cells get so hot that
they destroy themselves. Not only will this ruin the batteries, but it can also lead to
a battery box Fre.
Try to limit the number of times you run down the charge before starting the main
engine to recharge the batteries. Running the batteries way down results in high
charge currents and more heat. It also shortens the service life of Hawkers.
Deep discharging Hawkers in cold environments can also shorten their life span
because the current voltage regulator will undercharge them.
Using voltage regulator, NSN 6110-01-540-7819, solves both the high and low
temperature problems. You should always be very careful when
recharging Hawker batteries.
If you crank your tank with
Hawkers, listen up! Your M1A2
SEP tank has the additional six
batteries in the left rear sponson
(the “6-Pack” battery mod),
so
all 12
batteries on the tank
must be
the same type.
Mixing Hawker and other
battery
types
on
the
same
vehicle
can
cause
charging
problems
and
is
strictly
prohibited
due to safety risks.
Be on the lookout for heat buildup. That’s a sure sign that the battery is being
overcharged. If the battery gets too hot, stop the charging and do not use that
particular charger on Hawker batteries in the future.
•
Never
mix Hawker batteries with other battery types on the same vehicle! All
batteries in the battery compartment
must be
the same type.
try to use a
battery charger
designed for
hawkers, such
as these…
only use me
with other
hawkers!
don’t add fluid
to me, or I’ll
be damaged!
664.10-11.indd
1-2
1/27/08
6:58:59 PM
Back to Top
Back to Top