2
3
1.
SAVE THESE INSTRUCTIONS -
THIS MANUAL
CONTAINS IMPORTANT SAFETY AND OPERAT-
ING INSTRUCTIONS FOR THE MILWAUKEE LI-ION
CHARGER CAT. NO. 48-59-1811 AND MILWAUKEE
M12™ A N D M18™ L I-I O N B AT T E R I E S.
2. BEFORE USING THE BATTERY PACK AND
CHARGER, READ THIS OPERATOR’S MANUAL,
YOUR TOOL OPERATOR’S MANUAL, AND ALL
LABELS ON THE BATTERY PACK, CHARGER
AND TOOL.
3.
CAUTION
TO REDUCE THE RISK OF INJU-
RY, CHARGE MILWAUKEE M12™
AND M18™ RECHARGEABLE LI-ION BATTER-
IES ONLY IN MILWAUKEE M12™ AND M18™
LI-ION CHARGERS.
Other types of batteries may
burst causing personal injury and damage. Do not
wire a battery pack to a power supply plug or car
cigarette lighter. Batteries will be permanently dis-
abled or damaged.
4. USE MILWAUKEE LI-ION PACKS ONLY ON COM-
PATIBLE MILWAUKEE LI-ION TOOLS.
Battery pack
and charger are not compatible with
V
™-technology
or NiCd systems. Use with other tools may result in
a risk of fire, electric shock or personal injury.
5. AVOID DANGEROUS ENVIRONMENTS.
Do not
charge battery pack in rain, snow, damp or wet
locations.
Do not use battery pack or charger in the
presence of explosive atmospheres (gaseous fumes,
dust or flammable materials) because sparks may be
generated when inserting or removing battery pack,
possibly causing fire.
6. CHARGE IN A WELL VENTILATED AREA.
Do not
block charger vents. Keep them clear to allow proper
ventilation. Maintain a minimum one inch clearance to
all vents. Do not allow smoking or open flames near
a charging battery pack. Vented gases may explode.
7. MAINTAIN CHARGER CORD.
When unplugging
charger, pull plug rather than cord to reduce the risk
of damage to the electrical plug and cord. Never
carry charger by its cord. Keep cord from heat, oil
and sharp edges. Make sure cord will not be stepped
on, tripped over or subjected to damage or stress.
Do not use charger with damaged cord or plug.
Have a damaged charger replaced immediately.
8. DO NOT USE AN EXTENSION CORD UNLESS IT IS
ABSOLUTELY NECESSARY.
Using the wrong, dam
-
aged or improperly wired extension cord could result
in the risk of fire and electrical shock. If an extension
cord must be used, plug the charger into a properly
wired 16 gauge or larger extension cord with pins that
are the same number, size and shape as the pins on
the charger. Make sure that the extension cord is in
good electrical condition.
9. CHARGER IS RATED FOR 120 VOLT AC ONLY.
Char-
ger must be plugged into an appropriate receptacle.
10. USE ONLY RECOMMENDED ATTACHMENTS.
Use
of an attachment not recommended or sold by the
battery charger or battery pack manufacturer may
result in a risk of fire, electric shock or personal injury.
11. UNPLUG CHARGER
when not in use. Remove
battery packs from unplugged chargers.
12. TO REDUCE THE RISK OF ELECTRIC SHOCK
,
always unplug charger before cleaning or mainte-
nance. Do not allow water to flow into AC/DC plug.
Use a Ground Fault Circuit Interrupter (GFCI) to
reduce shock hazards.
13. DO NOT BURN OR INCINERATE BATTERY
PACKS.
Battery packs may explode, causing per
-
sonal injury or damage. Toxic fumes and materials
are created when battery packs are burned.
14. DO NOT CRUSH, DROP, OR DAMAGE
battery
pack. Do not use a battery pack or charger that has
received a sharp blow, been dropped, run over, or
damaged in any way (e.g., pierced with a nail, hit
with a hammer, stepped on).
15. DO NOT DISASSEMBLE.
Incorrect reassembly
may result in the risk of electric shock, fire or expo
-
sure to battery chemicals. If it is damaged, take it to
a MILWAUKEE service facility.
16. BATTERY CHEMICALS CAUSE SERIOUS BURNS.
Never allow contact with skin, eyes, or mouth. If a
damaged battery pack leaks battery chemicals, use
rubber or neoprene gloves to dispose of it. If skin is
exposed to battery fluids, wash with soap and water
and rinse with vinegar. If eyes are exposed to bat
-
tery chemicals, immediately flush with water for 20
minutes and seek medical attention. Remove and
dispose of contaminated clothing.
17. DO NOT SHORT CIRCUIT.
A battery pack will short
circuit if a metal object makes a connection between
the positive and negative contacts on the battery
pack. Do not place a battery pack near anything
that may cause a short circuit, such as coins, keys
or nails in your pocket. Do not allow fluids to flow into
battery pack. Corrosive or conductive fluids, such as
seawater, certain industrial chemicals, and bleach or
bleach containing products, etc., can cause a short
circuit. A short circuited battery pack may cause fire,
personal injury, and product damage.
18. STORE YOUR BATTERY PACK AND CHARGER
in a cool, dry place. Do not store battery pack where
temperatures may exceed 120°F (50°C) such as in
direct sunlight, a vehicle or metal building during the
summer.
19. ALWAYS USE A SIDE HANDLE
when using a
HIGH OUTPUT or HIGH DEMAND battery pack
6.0 Ah or above; the output torque of some tools
may increase. If your drill/driver did not come with
a side handle, visit www. milwaukeetool.com for the
appropriate accessory handle.
SPECIFICATIONS
Cat. No. ............................................... 48-59-1811
Input Volts
.............................................
120-127 AC
Max Input Amps
...............................................
6 AC
Output Volts ..................................................
12 DC
18 DC
Max Output Amps
........................................
4.5 DC
13.5 DC
Recommended Ambient
Charging Temperature ...................
40°F to 105°F
M18 ™ Li-Ion Battery Packs
........................18 V DC
M12™ Li-Ion Battery Packs
........................
12 V DC
FUNCTIONAL
DESCRIPTION
1. Light indicators:
Continuous red: Charging
Slow flashing green: Approaching full charge
Continuous green: Charging is complete
Fast flashing red: Battery is too hot/cold -
Charging will begin when battery reaches correct
charging temperature
Slow flashing red: Battery charge is pending -
Charging will begin when the first pack is fully
charged
Flashing red/green: Damaged or faulty battery pack
2. Bays
3. Cord
4. Vents
5. Battery Contacts
6. Release Buttons
7. Fuel Gauge button
8. Fuel Gauge
9. Super charge-capable
pack indicator
4
3
6
5
5
8
9
6
6
7
2
1
SYMBOLOGY
Volts
Direct Current
Alternating Current
Double Insulated
Properly Recycle Batteries
IMPORTANT SAFETY INSTRUCTIONS
WARNING
READ AND UNDERSTAND ALL INSTRUCTIONS.
Failure to follow all
instructions listed below, may result in electric shock, fire and/or serious personal injury.
SAVE THESE INSTRUCTIONS
BFP
Backfeed Protected
Hertz
Amps
C
US
UL Listing for Canada and U.S.
M18
™
AND M12
™
LI-ION BATTERY PACKS
Fuel Gauge
Use the Fuel Gauge to deter
Less than 10% if bottom light
is flashing
Approximate Run
Time Remaining
78-100
%
55-77
%
33-54
%
10-32
%
mine the battery pack's re-
maining run time. Press the
Fuel Gauge button to dis-
play the lights. The Fuel
Gauge will light up for 2-3
seconds. When less than
10% of charge is left, 1 light
on the fuel gauge will flash
slowly.
NOTE:
If the Fuel Gauge doesn't appear to be
working, place the battery pack on the charger and
charge as needed.
Compared to NiCd battery pack types, MILWAUKEE
Li-Ion battery packs deliver fade-free power for their
entire run time. The tool will not experience a slow,
gradual loss of power as you work. To signal the
end of discharge, 1 light on the fuel gauge will flash
quickly for 2-3 seconds and the tool will not run.
Charge the battery pack.
NOTE:
Immediately after using the battery pack,
the Fuel Gauge may display a lower charge than it
will if checked a few minutes later. The battery cells
"recover" some of their charge after resting.
Battery Pack Protection
To protect itself from damage and extend its life, the
battery pack’s intelligent circuit monitors current draw
and temperature. In extremely high torque, binding,
stalling, and short circuit situations, the battery pack
will turn OFF the tool if the current draw becomes
too high. All the fuel gauge lights will flash. Release
the trigger and restart.
Under extreme circumstances, the internal tem
-
perature of the battery could become too high. If
this happens, the fuel gauge lights will flash in an
alternating pattern and the tool will not run. Allow the
battery to cool down.
Fuel Gauge Lights Diagnosis
Solution
Lights 1 - 4 Solid
Remaining run time Continue working
1 Light, flashing
slowly
Less than 10% run
time left
Prepare to charge pack
1 Light, flashing
quickly
End of discharge
Charge pack
Lights 1-4, flashing
quickly
Current draw too
high
Release trigger and
restart, reduce pressure
Lights 1&3 / 2&4,
flashing alternatingly
Battery temperature
too high
Release trigger and allow
battery to cool
Cold Weather Operation
MILWAUKEE Li-Ion battery packs are designed to
operate in temperatures below freezing. When the
battery pack is too cold, it may need to warm up
before normal use. Put the battery on a tool and use
the tool in a light application. It may “buzz” for a short
