PDN
PACK
Field Manual
www.portablessupport.com
12
Problem/
Symptom
Possible
Cause
Verification
Possible
Corrections
Battery is not charging
Power
Button is
“OFF”
Battery is disconnected when
the Power Button is "Off" and
therefore will not charge.
Press Power Button.
AC cable
is not
connected
firmly
Inspect both ends of
AC Power Cord to ensure
they are both seated fully
in receptacles.
AC cable must be pressed
firmly and completely into
both the PACK and a live
receptacle.
Fuse is
blown
Remove PDN Spine from
backpack and open. Open
black rubber cover on fuse
holder connected to battery
charger. Remove fuse and
verify center strip is intact.
Replace the fuse with
a mini blade fuse of
same amperage
rating printed
on top of fuse.
Battery
must be
replaced
Determine if battery is
accepting charge. Measure
voltage with a voltmeter.
Plug into charger and
measure again. Determine
if voltage increases within
one minute.
If voltage has not
increased, then battery
should be tested and
replaced if necessary.
Charge time
is slow
Battery has
been deeply
discharged
Charging time is based on
average depth of discharge.
Deeply discharged batteries
can take up to 24 hours
to recharge.
Power device with
power cable to allow
battery to charge.
PO
WER S
Y
STEM
