PS Magazine - TB 43-PS-728
PS, The Preventative Maintenance Monthly
ISSUE 728
JULY 2013
52
PS 728
53
PS 728
JUL 13
W
hen used in multiple battery devices such as the AN/PSC-5 radio, some BB-
390B/U batteries, NSN 6140-01-490-4317, might overestimate how much charge
they have left. The problem is caused by crosstalk between the batteries.
The problem batteries are made by
Mathews Associates, Inc. The serial
numbers of affected batteries run from
11-0061 through 11-11457.
When used in a single battery device
such as the AN/PRC-119F radio, the
BB-390B/U remains unaffected.
Before you put two BB-390B/Us in
a multiple battery device, make sure
both batteries have the same state of
charge. Two LCD indicators on top of
the battery display the state of charge.
Each indicator has ±ve segments.
Make sure both batteries show the
same number of segments.
When you remove the batteries,
check the state of charge indicators.
If you have used the batteries for
several hours and they still show
a complete charge, use a pencil to
mark the battery’s USER INFO label
“EMPTY.” Make sure to erase the
label after charging the battery.
Problem batteries
have serial numbers
11-0061 through
11-11457
Four Rules for Avoiding a Sticky Pointer
• Don’t spill liquids
on your mouse.
• Keep your mouse
pad clean and dry.
• Use a slick pad, not
a fabric one. A slick
pad lets the ball roll
more freely.
• Clean your mouse
regularly.
USER INFO
EMPTY
Mouse Pads
5.
Turn the mouse upside down and
look into the empty ball casing.
Notice the three rollers inside. If
there’s a string of lint, hair and
dirt wound around any roller,
remove it with tweezers. You can
also use shots of compressed gas
duster to remove stubborn debris.
6.
Put some isopropyl alcohol on the
end of a foam swab. (Don’t drench
the swab.) Wipe the rollers and
the casing. Rotate the rollers to
clean all around them. Remove
as much debris as possible. Even a
small piece can keep your mouse
from rolling smoothly.
7.
Using a cloth dampened with alcohol or warm water, wipe the outside of the mouse
and each of its buttons. While you’re at it, wipe the mouse pad as well.
8.
Let your clean mouse air dry for a while.
9.
Put the ball back into the casing. Put the plastic ring over the ball. Lock the ring in
place by twisting it in the opposite direction of the arrows.
10.
Plug the mouse cable into the computer.
8-0001
11-11457
PIRATION D
BB-390B/U Battery…
What’s the Charge?
Erase
label
after
charging
battery
A mouse
just
doesn’t feel
at home
without a
mouse pad
it can roll
around on.
A high-quality
pad helps your
mouse move
smoothly.
You
can purchase
pads locally,
or you can
order by NSN.
To get a
list of NSNs,
search in
FED LOG by
item Name.
Enter the
words
PAD,
MOUSE.
Slick pad lets
ball roll freely
Dry ball
with
clean,
lint-free
cloth
Wipe rollers
and casing
with foam
swab
your
mama
couldn’t
hold a
charge
on a
credit
card!
yeah? well the only
charge
you have is…
…assault
and
battery!
this
kind of
crosStalk
doesn’t
help anybody!
728 52-53.indd
1-2
5/20/13
5:47 PM
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