MINIMUM GAUGE FOR CORD SETS
VOLTS
AMPERE RATING
MORE THAN NOT MORE THAN
AMERICAN WIRE GAUGE
120 V
0 A
0-25
26-50
51-100
101-150
(0 - 7.6 m)
(7.6 - 15.2m)
(15.2 - 30.4m)
(30.4 - 45.7m)
0-50
51-100
101-200
201-300
(0 - 15.2m)
(15.2 - 30.4m) (30.4 - 60.9m)
(60.9 - 91.4m)
240 V
TOTAL LENGTH OF CORD IN FEET
6 A
10 A
12 A
6 A
10 A
12 A
16 A
18
18
16
14
14
12
12
16
16
16
12
16
14
14
NOT RECOMMENDED
POWER CORD SAFETY
This unit has a polarized plug (one blade is wider than the other) as a safety feature. This plug will fit into a polarized outlet only
one way. If the plug does not fit fully into the outlet, reverse the plug. If it still does not fit, contact a qualified electrician. Do not
attempt to defeat this safety feature. WARNING: An imporper connection can result in electrical shock.
DIGITAL DISPLAY
6V BATTERY / 12V BATTERY
NOTE: If wrong voltage is selected for 6V battery
(12V charge) “LO” will display.
* Refer to Faults Code Chart on last page.
Displays “LO” when battery capacity is less than 60%.
Displays “60%-90%” when battery voltage goes up gradually.
Displays “FUL” when unit goes into float charge mode.
Displays Error codes when abnormal conditions occur*.
1.
2.
3.
4.
FEATURES
AUTOMATIC SHUT OFF
This unit is designed to automatically shut off once battery charging is complete to prevent overcharging. When charging is
complete, the digital display will show ”FUL” and the charger has switched to maintenance mode.
MAINTENANCE MODE
Once charging is complete, this unit will automatically go into float charge mode (also known as maintenance mode). In this mode,
the unit keeps the battery fully charged by delivering a small amount of current, when necessary, to keep the battery at peak charge.
REVERSE POLARITY PROTECTION
If the cables are incorrectly connected to the battery, the red LED indicator will light up and digital display will indicate “F06”.
Note: this unit will not begin charging if the reverse polarity indicator is lit.
OVERHEAT PROTECTION
This unit is designed to shut itself off if overheating is detected. Once the unit cools down, it will resume charging automatically.
CONNECTION METHODS
This unit comes with a standard cables with clips.
3A CHARGE RATE
This unit is recommended for charging small batteries such as those used in motorcycles, ATVs, snowmobiles, personal watercraft,
lawn tractors and golf cars. It is also suitable to maintain larger batteries such as those used in automobile, marine and farm tractors.
LED INDICATOR
A green LED indicates that a 6V battery is being charged.
A green LED indicates that a12V battery is being charged.
A red LED indicates that a fault occurs.
BATTERY MAINTAINER FUNCTIONS
JEGS 3A Battery Maintainer No. 81954 has a charge rate of up to 3 amps. It is designed for charging small batteries and
maintaining large batteries. It is designed for 6 and12 Volt lead-acid batteries only - conventional automotive, maintenance-
free, marine deep cycle and gel - used in cars, farm equipment, boats, RVs and SUVs, lawn mower/garden tractors, motorcycles,
personal watercraft, snowmobiles, ATVs and various application. The JEGS 3A Battery Maintaine features a 3-stage,
high-efficiency charging technology, built-in control IC that ensures fast, safe and complete charging of serviceable batteries.
Stage One: Constant Current: When the battery is severely discharged, the battery maintainer applies constant current.
This stage speedily charges the battery while protecting the battery.
Stage Two: Constant Voltage: This is a speed charge cycle for batteries that are nearly fully charged. It will top-off the
battery utilizing a 200mA trickle charge.
Stage Three: Floating Constant Voltage: This stage maintains a fully charged battery in the best condition by constantly
applying a small pulse of charge. The battery voltage will be maintain at approximate 13.5 Volt DC.
OUTDOOR USE EXTENSION CORDS
When the Battery Maintainer is operated outdoors, use only extension cords intended for use outdoors and so marked.
EXTENSION CORDS
Make sure the prongs of extension cord plug are the same number, size and shape as those on this unit and that the
extension cord is in good condition. When using an extension cord, be sure to use one that is rated to carry the current your
product will draw. An undersized extension cord will cause a drop in line voltage resulting in loss of power and overheating.
The following table shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use
the next higher rated gage. The smaller the gage number, the higher the amperage load rating of the extension cord.
PREPARING TO CHARGE A BATTERY (6 Volt or 12 Volt)
1. Determine the voltage of the battery to be charged by referring to the vehicle owner’s manual.
2. If it is necessary to remove the battery from a vehicle for charging or for cleaning the terminals/posts, always remove the
battery grounded terminal/post connection first. Make sure all accessories in the vehicle are off, so as not to cause an arc.
3. Clean battery terminals. Do not allow corrosion to come in contact with eyes.
