BatteryMINDer
®
Models 36271 & 48021
Rev. D-120913
Page 21
P/N VDC36271/48021-MNL
TROUBLESHOOTING GUIDE
PROBLEM
POSSIBLE CAUSE
SOLUTION
Power ON indicator does
not light after being
plugged into AC for 30
seconds.
AC outlet is dead.
Plug in a lamp or other appliance to
check for voltage. If controlled by
a wall switch, be sure switch is on
and try to prevent accidental shut
off while charger is working.
ERROR indicator lights
RED
solid
.
Output lead connec-
tions to battery may be
reversed.
Switch (reverse) connections at bat-
tery.
Battery voltage
<
9 Volts
/
12 Volts
.
Battery may be damaged and should
not be recharged. Allow battery to
“recover” by letting it “rest” without
a load.
Battery was just recently
removed from a load
(lights, electronic equip-
ment) or not used for
extended time without a
charger-maintainer.
If battery is healthy and just deeply
discharged it should recover its
voltage (rise above 6 volts) suffi-
ciently to allow charger to begin an
attempt to fully recharge it.
Battery has “rested” and
still cannot be recovered
– recharged.
Battery should be safely discarded
– recycled.
ERROR Indicator lights
RED
blinking
.
Battery(s) may be weak,
heavily sulfated, or too
large to fully charge
before unit times out.
Allow battery to remain in
Maintenance-Float mode for 72 hours
or more and then attempt to recharge
again.
Battery may be so large
it may require a second
full recharge.
Reboot unit by unplugging from
A.C. electrical outlet, disconnect
from battery so there will be no
electrical power going to the unit
from either direction, wait 10 sec-
onds, connect to battery first then
plug into A.C. outlet
Battery Condition
Indicator lights
YELLOW
(
Before
battery has been
completely charged).
Battery can be weak
due to sulfation, self
discharge or was very
deeply discharged.
Attempt a full recharge and recheck
after completion. If still
YELLOW
,
follow next procedure (“After battery
has been completely charged.”)
