4
or solvents to clean or lubricate your battery pack.
The plastic casing will become brittle and crack,
causing a risk of injury.
Store battery packs at room temperature away from
moisture. Do not store in damp locations where cor-
rosion of terminals may occur. As with other battery
pack types, permanent capacity loss can result if the
pack is stored for long periods of time at high tem-
peratures (over 120° F). MILWAUKEE Li-Ion battery
packs maintain their charge during storage longer
than other battery pack types. After about 6 months
of storage, charge the pack as normal.
Transport
The regulations pertaining to the transport of Li-ion
batteries are affected by whether the battery is trans
-
ported in a personal vehicle or offered for shipment
via a commercial carrier. The Personal transport
of Li-Ion battery packs is allowed when done in
accordance with these warnings and instructions.
When shipping Li-ion batteries with a commercial
carrier, they are shipped under classification UN 3480
(battery only) or UN 3481 (batteries contained in or
packed with equipment). The proper packaging,
labeling, marking, and documentation requirements
are generally dependent upon whether the particular
batteries are rated greater than or less than 100 Wh.
Often, Li-Ion batteries rated 100 Wh or less are
“excepted” from certain shipping regulations. In the
U.S., products shipped via ground transport may be
“excepted” from certain hazardous material shipping
regulations if they are under 300Wh.
To ensure the MXFXC406 battery is below 300Wh
during transport, the shipping switch must be in the
locked position:
UNLOCK LOCK
1.
Pull out the shipping switch tab.
2.
Install the shipping cap provide with the battery
at time of purchase, or secure a cable tie through
the hole in the shipping switch tab.
Always ship Li-Ion batteries in accordance with the
current regulations governing the chosen mode of
transport (e.g. ground, air, sea). When in doubt,
contact MILWAUKEE, the carrier or other trained
Dangerous Goods professional to determine ap-
plicable regulations.
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 environ
-
mentally friendly than some other types of battery
packs (e.g., nickel-cadmium). Always dispose of
your battery pack according to federal, state and lo
-
cal regulations. Contact a recycling agency in your
area 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.
Use the Fuel Gauge to determine the battery pack's
remaining run time. Press the Fuel Gauge button to
display 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 4 times. When the
battery reaches 0% charge, 1 light on the fuel gauge
will flash 8 times. Charge the battery pack.
An alternating blinking pattern indicates that an error
or overtemperature state was encountered. Allow
the battery pack to cool and reinsert. If the pattern
continues, contact a MILWAUKEE service facility.
The Fuel Gauge will not work when the Shipping
Switch is pulled out on the MXFXC406.
If the Fuel Gauge doesn't appear to be working,
place the battery pack on the charger and charge
as needed.
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 "re-
cover" some of their charge after resting.
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 product 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. Once
fuel gauge has stopped
flashing, restart and
reduce pressure
Lights 1&3 / 2&4,
flashing alternatingly
Battery temperature
too high
Release trigger and
allow battery to cool
Lights 1&4 / 2&3,
flashing alternatingly
Communication
error
Remove the battery.
Press the Fuel Gauge
button to clear. Reinsert
the battery.
†
†
If the problem persists, take the product, charger, and battery pack
to a MILWAUKEE service facility.
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 product if the current
draw becomes too high. The fuel gauge will flash.
Release the trigger, wait for the fuel gauge to stop
flashing, and then restart.
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 product and
use the product in a light application.
WARNING
To reduce the risk of fire, personal
injury, and product damage due to
a short circuit, never immerse your product, bat
-
tery pack or charger in fluid or allow a fluid to
flow inside them. Corrosive or conductive fluids,
such as seawater, certain industrial chemicals,
and bleach or bleach containing products, etc.,
can cause a short circuit.
Maintenance and Storage
Do not expose your battery pack or cordless products
water or rain, or allow them to get wet. This could
damage the product and battery pack. Do not use oil
