PS Magazine - TB 43-PS-684
PS, The Preventative Maintenance Monthly
ISSUE 684
NOVEMBER 2009
21
PS 684
NOV 09
“A second method to
remove the passivation layer
is to place the BA-5590/U
battery in a CLU (command
launch unit), turn the CLU
switch to NIGHT position
and turn the switch back to
the OFF position. Repeating
the
NIGHT/OFF
switch
sequence a few times will
cause the passivation layer
to burn off and the battery
will come up to full voltage
potential.”
1. Turn the power
switch to OFF and
then back to DAY.
If the CLU BATTERY
indicator is green,
you’re
good
to
go.
Otherwise,
continue to step
2.
2.
Remove the battery and warm it by rubbing it.
Install the battery and turn the power to DAY. If
the CLU BATTERY indicator is green, continue as
normal. Otherwise, continue to step 3.
3.
Repeat step 2 or install a different, warmer
battery and continue with operations.
Javelin
Missile
System…
B
a
t
t
e
r
y S
h
a
k
i
n
g
Not
Needed
Turn the CLU power switch
to NIGHT and back to OFF.
1.
Turn the power
switch to OFF and
then back to DAY.
If the CLU BATTERY
indicator is green,
you’re good to go.
Otherwise, continue
to step 2.
in ps 6
7
5 (feb 09), we wrote that
javelin batteries left sitting on the
shelf a long time sometimes develop
a “passivation” crust on their metal
plates, which prevents electrons
from passing through the plates.
the solution we recommended was to
shake the battery.
wp 0008 00-5 in tm 9-1425-168
7
-10
recommends the same thing.
what
does work
is the second
solution offered
in the tm…
in the cold,
the procedure
is slightly
different…
this procedure is
also in wp 0013 00-1,
but it also includes
the shaking option.
forget
that.
shaking
doesn’t
work!
the passivation problem can happen
only
with the lithium sulfur dioxide ba-5590b/u,
nsn 6135-01-438-9450, or the ba-5590a/u,
nsn 6135-01-523-203
7
.
the non-rechargeable lithium manganese
dioxide ba-5390/U, nsn 6135-01-501-0833,
and ba-5390a/u, nsn 6135-01-51
7
-6060,
as well as the rechargeable nickel metal
hydride bb-390B/U, nsn 6140-01-490-431
7
,
don’t have this problem.
one more point:
if you use the
ba-5590a/u,
ba-5390a/u,
or bb-390b/u,
the battery’s
built-in state of
charge indicator
will tell you if
the battery has
energy remaining.
stop
it,
will
you?!
shaking
doesn’t help
my battery
work!
turns out
shaking the
battery is a
waste of time.
684.20-21.indd
1-2
10/1/09
4:47:23 PM
Click here for a copy of this article to save or email.
Click here for a copy of this article to save or email.
Back to TopBack to Top
