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Powering the Charger with an Inverter or
Generator
The charger will operate with most generators and
inverters rated at 300 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 battery packs when not in
use. No battery pack damage will occur, however, if
the charger and battery pack are left plugged in.
Li-Ion Charging Status
Battery Pack
Temperature
Red Charger
Indicator Light
Charging Status
Too Hot
Normal Range
Too Cold
Flashing
Continuous
Flashing
Not charging
Normal charging
Not charging
• The charger will keep the battery pack fully
charged if it is left on the charger.
• If the light indicator fl ashes red and green, check
that the battery pack is fully seated into the bay.
Remove the pack and reinsert. 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 pack and reinsert. If the light indicator
still does not come on, contact a MILWAUKEE
service facility.
Charging a Hot or Cold Battery Pack
The Red fl ashing indicator light on the charger indi-
cates that the battery pack temperature is outside
the charging range. Once the pack is within the
acceptable range, normal charging will take place
and the red light will be continuous. Hot or cold
battery packs may take longer to charge.
WARNING To reduce the risk of injury,
always unplug the charger and re-
move the battery pack from the charger before
performing any maintenance. Never disas-
semble the battery pack or charger. Contact
a MILWAUKEE service facility for ALL repairs.
To reduce the risk of injury and damage, never
immerse your battery pack or charger in liquid
or allow a liquid to fl ow 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 fl ammable or combustible solvents
around battery packs, charger, or tools.
Repairs
The MILWAUKEE Li-Ion charger has no service-
able parts.
AC/DC Charger (Cat. No. 2710-20)
To reduce the risk of damage to the charger, do
not attempt to plug into both AC and DC outlets at
the same time.
To use the AC/DC plug in a DC outlet, rotate the
DC adapter out (A) and insert into a DC outlet. The
AC plug blades should be folded in.
To use the AC/DC plug in an AC outlet, rotate the
AC plug blades out (B) and insert into an AC outlet.
The DC adapter should be folded in.
CHARGER OPERATION
WARNING Charge only MILWAUKEE
Lithium-Ion battery packs in the
MILWAUKEE Li-Ion Battery Charger. Other
types of batteries may cause personal injury
and damage. Battery pack and charger are
not compatible with V™-technology or NiCd
systems.
To reduce the risk of electric shock, do not
allow water to fl ow into AC/DC plug.
A
B
When to Charge MILWAUKEE Li-Ion Battery
Packs
Remove the battery pack from the tool for
charging when convenient for you and your job.
MILWAUKEE battery packs do not develop a
"memory" when charged after only a partial dis-
charge. 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 Lithium-Ion battery pack is when
the pack has reached the end of its charge. To
signal the end of charge, power to the tool will drop
quickly, allowing you just enough power to fi nish
making a cut, drilling a hole, or driving a fastener.
Charge the battery pack as needed.
How to Charge the Battery Pack
Place the battery pack onto the bay by sliding the
pack on from the top of the bay. The red light will
turn on, either fl ashing (pack is too hot or cold) or
continuous (pack is charging).
• A fully discharged pack with an internal tempera-
ture between 32°F and 104°F will charge in 30-Min
or 1-Hour, depending on the battery pack.
• Heavily cycled battery packs may take longer to
charge completely.
• The Fuel Gauge lights on the battery pack are
displayed as the pack is being charged, indicating
how fully charged the pack is.
• After charging is complete, the continuous green
light will turn on and the fuel gauge will turn off.
LIMITED WARRANTY - USA AND CANADA
Every MILWAUKEE Battery Pack (sold with cordless product and/or as a replacement battery pack) is warranted to the
original purchaser only to be free from defects in material and workmanship. Subject to certain exceptions, MILWAUKEE
will repair or replace a battery pack which, after examination, is determined by MILWAUKEE to be defective in material
or workmanship for the stated warranty period from date of purchase. Return of the battery pack to a MILWAUKEE
factory Service Center location or MILWAUKEE Authorized Service Station, freight prepaid and insured, is required.
A copy of the proof of purchase should be included with the return product. This warranty does not apply to damage
that MILWAUKEE determines to be from repairs made or attempted by anyone other than MILWAUKEE authorized
personnel, misuse, alterations, abuse, normal wear and tear, lack of maintenance, or accidents.
Battery Pack Description Chemistry Warranty Period (from date of purchase)
M12™ XC REDLITHIUM™
M12™ XC REDLITHIUM™ 4.0
M18™ XC REDLITHIUM™
M18™ XC REDLITHIUM™ 4.0
M28™ XC LITHIUM-ION
M28™ XC REDLITHIUM™
LITHIUM-ION Three (3) Years
V4 LITHIUM-ION
M12™ Compact LITHIUM-ION
M12™ Compact REDLITHIUM™
M12™ Compact REDLITHIUM™ 2.0
M12™ XC LITHIUM-ION
M18™ Compact LITHIUM-ION
M18™ Compact REDLITHIUM™
M18™ Compact REDLITHIUM™ 2.0
LITHIUM-ION Two (2) Years
M18™ LITHIUM-ION
V18™ V™-technology LITHIUM-ION Se-
rial number prefix “A95”
V28™ V™-technology LITHIUM-ION
LITHIUM-ION
Two (2) Years – plus,
Three (3) Years Pro-Rata (prorated)*
Ni-Cd, Ni-Cd Super-Tough, Ni-Cd Power-
Plus, Ni-MH, V18™ V™-technology
LITHIUM-ION Serial number prefix “E95”
Ni-Cd / Nickel-Cadmium,
Ni-MH / Nickel-Metal-Hydride
LITHIUM-ION
One (1) Year
The warranty period for all Ni-CD and Ni-MH Battery Packs is one (1) year from the date of purchase. The warranty period
for V4 Lithium-Ion, M12™ Compact Lithium-ion, M12™ Compact REDLITHIUM™, M12™ XC LITHIUM-ION, M18™
Compact LITHIUM-ION and M18™Compact REDLITHIUM™ Battery Packs is two (2) years from the date of purchase.
The warranty period for M12™ XC REDLITHIUM™, M18™ XC REDLITHIUM™, M28™ XC REDLITHIUM™ and
M28™ XC LITHIUM-ION Battery Packs is three (3) years from the date of purchase. *The warranty period for every
MILWAUKEE V™-technology V28™ LITHIUM-ION Battery Pack, M18™ XC HIGH CAPACITY LITHIUM-ION Battery
Pack, and V™-technology V18™ LITHIUM-ION Battery Pack (with the serial number prefix “A95”) is five (5) years /
2000 charges from the date of purchase, whichever first occurs. The first 1000 charges or 2 years of the warranty,
whichever first occurs, are covered through free replacement of the defective battery. This means that for the earlier of
the first 1000 charges or two (2) years from the date of purchase/first charge, a replacement battery will be provided
to the customer for any defective battery free of charge. Thereafter, the remaining charges up to a total of 2000 or the
remainder of the five (5) year period from the date of purchase, whichever first occurs, will be covered on a pro rata basis.
This means that every customer gets an additional 1000 charges or three (3) years of pro rata warranty on the
V™technology V28™ LITHIUM-ION Battery Pack, M18™ XC LITHIUM-ION Battery Pack, and V™-technology V18™
LITHIUM-ION Battery Pack (with the serial number prefix “A95”) depending upon the amount of use. The warranty
period for V™-technology V18™ LITHIUM-ION Battery Pack (with the serial number prefix “E95”) is one (1) year.
Warranty Registration is not necessary to obtain the applicable warranty on a MILWAUKEE battery pack. The
manufacturing date of the product will be used to determine the warranty period if no proof of purchase is provided at
the time warranty service is requested.
ACCEPTANCE OF THE EXCLUSIVE REPAIR AND REPLACEMENT REMEDIES DESCRIBED HEREIN IS A CONDI-
TION OF THE CONTRACT FOR THE PURCHASE OF EVERY MILWAUKEE PRODUCT. IF YOU DO NOT AGREE
TO THIS CONDITION, YOU SHOULD NOT PURCHASE THE PRODUCT. IN NO EVENT SHALL MILWAUKEE BE
LIABLE FOR ANY INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR FOR ANY COSTS,
ATTORNEY FEES, EXPENSES, LOSSES OR DELAYS ALLEGED TO BE AS A CONSEQUENCE OF ANY DAMAGE
TO, FAILURE OF, OR DEFECT IN ANY PRODUCT INCLUDING, BUT NOT LIMITED TO, ANY CLAIMS FOR LOSS
OF PROFITS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSE-
QUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. THIS WARRANTY
IS EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS WARRANTIES, WRITTEN OR ORAL. TO THE EXTENT
PERMITTED BY LAW, MILWAUKEE DISCLAIMS ANY IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION
ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE; TO
THE EXTENT SUCH DISCLAIMER IS NOT PERMITTED BY LAW, SUCH IMPLIED WARRANTIES ARE LIMITED TO
THE DURATION OF THE APPLICABLE EXPRESS WARRANTY AS DESCRIBED ABOVE. SOME STATES DO NOT
ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT
APPLY TO YOU, THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER
RIGHTS WHICH VARY FROM STATE TO STATE.
This warranty applies to product sold in the U.S.A. and Canada only.
Please consult the ‘Service Center Search’ in the Parts & Service section of MILWAUKEE’s website
www.milwaukeetool.com or call 1.800.SAWDUST (1.800.729.3878) to locate your nearest service facility for warranty
and non-warranty service on a MILWAUKEE Cordless Battery Pack.