5
RBRC Battery Recycling Seals
The RBRC™ Battery Recycling Seals (see "Sym
-
bology") on your product's battery packs indicate
that MILWAUKEE has arranged for the recycling
of that battery pack with the Rechargeable Battery
Recycling Corporation (RBRC). At the end of your
battery pack's useful life, return the battery pack to
a MILWAUKEE Branch Office/Service Center or the
participating retailer nearest you. For more informa-
tion, visit the RBRC web site at www.rbrc.org.
ONE-KEY™ (MXFXC406 only)
To learn more about the ONE-KEY™ functionality,
go to milwaukeetool.com/One-Key. To download the
ONE-KEY™ app, visit the App Store or Google Play
from your smart device.
ONE-KEY™ Indicator
Solid Blue
Wireless mode is active and ready
to be configured via the ONE-KEY™
app.
Blinking Blue Tool is actively communicating with
the ONE-KEY™ app.
Blinking Red
Tool is in security lockout and can
be unlocked by the owner via the
ONE-KEY™ app.
MX FUEL
™
LI-ION
CHARGER
WARNING
Charge only MILWAUKEE MX
FUEL™Li-Ion batteries in this
MILWAUKEE Li-Ion charger. Other types of bat
-
teries may cause personal injury and damage.
When to Charge the Battery Pack
with this MILWAUKEE Charger
Remove the battery pack from the product for charging
when convenient for you and your job. MILWAUKEE
batteries do not develop a "memory" when charged
after only a partial discharge. It is not necessary to run
down the battery pack before placing it on the charger.
• Use the Fuel Gauge to determine when to charge
your MILWAUKEE Li-Ion battery pack.
• You can "Top-Off" your battery pack's charge before
starting a big job or long day of use.
• The only time it is necessary to charge the
MILWAUKEE Li-Ion battery pack is when the battery
pack has reached the end of its charge. To signal
the end of charge, power to the product will drop
quickly, allowing you just enough power to finish
the operation. Charge the battery pack as needed.
How to Charge the Battery Pack
Align the battery pack with the bay and slide the
battery pack into the charger as far as possible.
The red light will come on, either flashing quickly
(battery pack or charger is too hot or cold), flashing
slowly (communication between pack and charger)
or continuous (pack is charging).
• A fully discharged battery pack with an internal tem
-
perature in the normal range will charge in about 45
to 90 minutes, depending on the battery pack and
internal temperature of the charger.
• Heavily cycled batteries may take longer to charge
completely.
• The fuel gauge lights are displayed as the pack is be-
ing charged, indicating how fully charged the pack is.
The fuel gauge will turn off when charging is complete.
• After charging is complete, the continuous green
light will come on.
• The charger will keep the battery pack fully charged
if it is left on the charger. The light indicator will be
same as normal charging.
• If the light indicator flashes red and green, check that
the battery pack is fully seated into the bay. Remove
the battery pack and reinsert. If the light continues
to flash red and green, remove pack(s) and unplug
charger for at least 2 minutes. After 2 minutes,
plug charger back in and insert pack. If the problem
persists, contact a MILWAUKEE service facility.
• If the light indicator does not come on, check that
the battery pack is fully seated into the bay. Remove
the battery pack and reinsert. If the light indicator
still does not come on, remove pack(s) and unplug
charger for at least 2 minutes. After 2 minutes,
plug charger back in and insert pack. If after these
attempts the light indicator still does not come on,
contact a MILWAUKEE service facility.
Charging a Hot or Cold Battery Pack
The fast Red Flashing Indicator light on the charger
indicates that the battery pack or charger temperature
is outside the charging range. Once the battery pack
or charger is within the acceptable range, normal
charging will take place and the red light will be contin-
uous. Hot or cold batteries may take longer to charge.
Li-Ion Charging Status
Battery Pack
or Charger
Temperature
Red Charger
Indicator Light
Charging Status
Too Hot
Normal Range
Too Cold
Fast Flashing
Continuous
Fast Flashing
Not charging
Normal charging
Not charging
Powering the Charger with an Inverter
or Generator
The charger will operate with most 120 V generators
and inverters rated at 600 Watts or higher.
Maintenance and Storage
Store your charger in a cool, dry place.
As a general practice, it is best to unplug battery
chargers and remove batteries when not in use.
No battery pack damage will occur, however, if the
charger and battery pack are left plugged in.
Repairs
The charger has no serviceable parts.
WARNING
To reduce the risk of injury, always
unplug the charger and remove the
battery from the charger before performing any
maintenance. Never disassemble the battery or
charger. Contact a MILWAUKEE service facility
for ALL repairs.
To reduce the risk of injury and damage, never
immerse your battery or charger in liquid or allow
a liquid to flow inside them.
Cleaning
Clean out dust and debris from charger vents and
electrical contacts by blowing with compressed air.
Use only mild soap and a damp cloth to clean the
battery pack and charger, keeping away from all elec
-
trical contacts. Certain cleaning agents and solvents
are harmful to plastics and other insulated parts.
Some of these include gasoline, turpentine, lacquer
thinner, paint thinner, chlorinated cleaning solvents,
ammonia and household detergents containing am-
monia. Never use flammable or combustible solvents
around batteries, charger, or products.
