4
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
time until it warms up. When the buzzing stops, use
the tool normally.
Transport
Personal transport of Li-Ion battery packs is allowed
when done in accordance with these warnings and
instructions. The proper classification, packaging,
labeling, marking, and documentation requirements
for shipping Li-Ion batteries is dependent upon
whether the particular batteries are rated greater than
or less than 100 Wh. Generally, Li-Ion batteries rated
100 Wh or less are “excepted” from certain Class 9
DG requirements. Always check compliance of Li-Ion
battery consignments against the current regulations
governing the chosen mode of transport. When in
doubt, contact the carrier or other trained Dangerous
Goods professional to confirm acceptability. Li-Ion
packs are shipped under classification UN 3480
(battery only) or UN 3481 (batteries contained in or
packed with equipment).
WARNING
To reduce the risk of injury or ex
-
plosion, never burn or incinerate a
battery pack even if it is damaged, dead or com
-
pletely discharged. When burned, toxic fumes
and materials are created.
Disposing of MILWAUKEE Li-Ion
Battery Packs
MILWAUKEE Li-Ion battery packs are more envi
-
ronmentally friendly than some other types of power
tool battery packs (e.g., nickel-cadmium). Always
dispose of battery packs according to federal, state
and local regulations. Contact a recycling agency for
recycling locations.
Even discharged battery packs contain some energy.
Before disposing, use electrical tape to cover the
terminals to prevent the battery pack from shorting,
which could cause a fire or explosion.
RBRC Battery Recycling Seals
The RBRC™ Battery Recycling Seals (see the
Symbology section) on a battery packs indicates that
MILWAUKEE has arranged for recycling with the Re
-
chargeable Battery Recycling Corporation (RBRC).
At the end of its useful life, return the battery pack
to a MILWAUKEE Branch Office/Service Center or a
participating retailer. For more information, visit the
RBRC web site at www.rbrc.org.
M18
™
LI-ION
BATTERY PACKS
Fuel Gauge
Use the fuel
Less than 10% if
bottom light is flashing
Approximate Run
Time Remaining
78-100
%
55-77
%
33-54
%
10-32
%
Less than 10% if bottom light
is flashing
gauge to deter-
mine the bat-
tery pack's re
-
maining run
time. Press the
fuel gauge but-
ton to display
the lights. The
fuel gauge will
light up for 2-3
seconds. When
less than 10% of charge is left, one 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 during use. To signal the end
of discharge, one 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 if the current draw becomes too high.
All the fuel gauge lights will flash. Release the trig
-
ger 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
