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L. LED DISPLAY
Red blinking (slow) – indicates check battery connection or
blown fuse
Red blinking (fast) – indicates error, abort stage
Red solid – charger is charging, current at maximum
Yellow #1 solid – charger is charging, voltage >14.2 volts
Yellow #1 blinking – desulfation mode
Yellow #2 solid – charger is charging, constant voltage
Green solid – charger is in final 3-hour charge.
95% charged
Green blinking – charge complete maintain stage
M. AUTOMATIC CHARGE MODE
The automatic charger uses a three-step charging process. During the BULK charge phase, the charger attempts to deliver 10/(20) amps
of current to the battery(ies) until the battery voltage levels off. At this point, the charger enters the ABSORPTION charge phase. In this
phase, the charger will hold the battery voltage constant and let the battery determine the charging current. When the charging current
stabilizes, the charger will continue to charge for three hours to bring the battery up to full charge. The charger will then automatically
enter the MAINTAIN MODE. During this phase, the charger will hold the battery voltage constant at 13.2 volts to guard against self-
discharge of the battery. The charge current will typically be a few tenths of an amp.
If the battery has been left discharged for an extended period of time, it may have become ‘SULFATED’. If the battery voltage is less than
12.2 volts prior to being charged, and the voltage climbs rapidly when charging begins, the battery may be SULFATED. Under this
condition, the charger enters DESULFATION MODE; this is indicated by the first YELLOW LED blinking. In DESULFATION MODE, the
initial charging current is very small. The charger will stay in DESULFATION MODE for up to 24 hours, attempting to break down the
sulfation. If the battery current increases to normal in this time, the charger will enter the normal AUTOMATIC MODE. If the current does
NOT increase to normal, the charger will enter the ABORT state and will shut off. The rapid flashing of the RED LED indicates the ABORT
state and the battery may need to be replaced. The charger will remain in abort until the AC power is removed.
N. DESULFATION MODE
O. EXTENDED BATTERY STORAGE
The charger will draw a small amount of current from the battery(ies), a few milliamps, when not charging or maintaining. If the
battery(ies) are going to be stored for an extended period of time (several months) without being charged, it is best to disconnect the
leads or remove the fuse to keep the charger from discharging the battery(ies) over time.
P. MAINTENANCE / CLEANING INSTRUCTIONS
Very little maintenance is required for the battery charger. Use common sense in wiping the charger clean and store in a clean, dry area.
1. After use, use a dry cloth to wipe all battery corrosion and
other dirt or oil from terminals, cords, and the charger case.
2. Coil charger cords to prevent damage.
3. Have any cracked or frayed cords replaced by a qualified
professional.
4. Store battery charger in a clean, dry area.
NOTE:
When both output leads are connected to one battery,
only channel one will display the charge status of the battery.
LIMITED WARRANTY
SCHUMACHER ELECTRIC CORPORATION, 801 BUSINESS CENTER 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 workmanship. 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 representative.
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 ANYONE TO ASSUME
OR MAKE ANY OTHER OBLIGATION TOWARDS 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 LIMITED WARRANTY.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION 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.