Charge Period; Troubleshooting - Schumacher SE-2150MA Owner's Manual

G. OPERATING INSTRUCTIONS:
ENGINE START
1. Connect the battery charger to the vehicle according to
section E (CHARGING BATTERY IN VEHICLE) found earlier
in this manual.
2. Performance will be enhanced if you charge the battery for
5-10 minutes in the 12v 15 amp position before attempting
to start.
3. Set the charge rate selector switch to the 110 amp start
position.
4. Crank the engine for 2-4 seconds.
5. If the engine fails to start, charge the battery in the 12v 15
amp position for another 5-15 minutes and then attempt to
start the engine again.
6. If the engine fails to start after several attempts, there may
be a problem elsewhere with the vehicle.
7. When disconnecting, always disconnect power cord first,
then remove clip from vehicle chassis, and finally remove
the clip from the battery terminal.
H.

CHARGE PERIOD

The approximate time required to bring a battery to a full charge
state depends upon the number of ampere hours (AH's) de-
pleted from the battery. AH's are determined by multiplying the
number of hours times the number of amps supplied by a bat-
tery to a load. For example - if a load was connected to a battery
which drew 10 Amps for a period of 5 hours, the battery will
have supplied 50 AH's. The approximate recharge time required
to restore the 50 AH's depleted from the battery would be calcu-
lated by dividing 50 AH's by the selected charge rate. If the 15
Amp charge rate is chosen then divide 50 AH's by 15 Amps, this
equal to 3.3 hours or 3 hour and 20 minutes. During the charge
cycle, the 15 Amp charge rate will not remain constant, rather
as the battery charges it will taper to approximately 6-7 Amps.
Also not all of the energy going into the battery is directly con-
verted, some is lost in the form of heat. For these reasons allow
an additional 25% in charge time. For this example add 50 min-
utes to the 3 hour and 20 minutes for a total recharge time of 4
hour and 10 minutes.
50 = 3 Hours 20 Minutes
15
3 Hours (180 minutes + 20 minutes = 200 minutes)
200 x 1.25 = 250 minutes or 4 Hours & 10 minutes

TROUBLESHOOTING

If a problem does occur, check the following:
PROBLEM POSSIBLE CAUSE
No meter reading. Clips are not making
a good connection
AC Cord unplugged.
Charger will not AC outlet is dead.
turn on when
properlyconnected.
Poor electrical
connection.
Clicking noise from Circuit breaker is
charger. cycling.
Battery is defective.
Severely discharged
battery but otherwise
a good battery.
Reverse connections
at battery.
LIMITED WARRANTY
SCHUMACHER ELECTRIC CORPORATION, 801 BUSINESS CEN-
TER DRIVE, MOUNT PROSPECT, ILLINOIS 60056-2179 MAKES
THIS LIMITED WARRANTY TO THE ORIGINAL PURCHASER AT
RETAIL OF THIS PRODUCT. THIS LIMITED WARRANTY IS NOT
TRANSFERABLE.
Schumacher Electric Corporation warrants this battery charger for two
years from date of purchase at retail against defective material or work-
manship. If such should occur, the unit will be repaired or replaced at
the option of the manufacturer. It is the obligation of the purchaser to
forward the unit together with proof of purchase, transportation and/or
mailing charges prepaid to the manufacturer or its authorized repre-
sentative.
This limited warranty is void if the product is misused, subjected to
careless handling, or repaired by anyone other than the manufacturer
or its authorized representative.
The manufacturer makes no warranty other than this limited warranty
and expressly excludes any implied warranty including any warranty
for consequential damages.
THIS IS THE ONLY EXPRESS LIMITED WARRANTY AND THE
MANUFACTURER NEITHER ASSUMES NOR AUTHORIZES ANY-
ONE TO ASSUME OR MAKE ANY OTHER OBLIGATION TO-
WARDS THE PRODUCT OTHER THAN THIS EXPRESS LIMITED
WARRANTY. THE MANUFACTURER MAKES NO WARRANTY OF
MERCHANTABILITY OR FITNESS FOR PURPOSE OF THIS
PRODUCT AND EXPRESSLY EXCLUDES SUCH FROM THIS LIM-
ITED WARRANTY.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITA-
TION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES OR
LENGTH OF IMPLIED WARRANTY SO THE ABOVE LIMITATIONS
OR EXCLUSIONS MAY NOT APPLY TO YOU.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND
YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM
STATE TO STATE.
5
SOLUTION
Rock clips back and forth
for a better connection.
Plug AC line into outlet.
Meter should now indicate.
Plug in a lamp to check for
voltage.
Check connectors, rock
back and forth for a better
connection.
May be in the wrong switch
position.
Have Battery checked.
Allow charging to continue
until battery has a chance
to recover sufficiently to take
a charge. If more than 20
minutes stop charging and
have the battery checked.
Shut off charger and correct
lead connections.