BATTERY CHARGER
SLIDE OFF
252-8026
For questions / comments, technical assistance or repair parts –
Please Call Toll Free: 1-866-917-4374. (M-F 8:30am-5:00pm Est.)
OPERATOR’S MANUAL
CAUTION:
To Reduce The Risk Of Injury, User Must
Read And Understand Operator’s Manual. Save These In-
structions For Future Reference.
TABLE OF CONTENTS
Safety Symbols ......................................................... Page 2
Safety Instructions ...................................................... Page 3
Overview/Specifications ................................................. Page 6
Assembly ............................................................. Page 7
Operation ............................................................. Page 8
Maintenance .......................................................... Page 10
Troubleshooting ....................................................... Page 10
Warranty ............................................................. Page 14
Page 2
SAFETY SYMBOLS
Some of these following symbols may be used on this tool. Please study them and learn their
meaning. Proper interpretation of these symbols will allow you to operate the tool better and
more safely.
Symbol
Name
Designation / Explanation
V Volts Voltage
A Amperes Current
Hz Hertz Frequency (cycles per second)
W Watts Power
∿
Alternating current Type of current
�
or d.c.
Direct current Type or characteristic of current
n
o
No-load speed Rotational speed at no load
lbs Pounds Weight
Class II construction Double insulated construction
.../min Per minute
Revolutions, strokes, surface speed
orbits, etc., per minute
Wear safety goggles
WARNING:
The operation of any
power tool can result in foreign objects
being thrown into your eyes, which can
result in severe eye damage. Before
beginning power tool operation, always
wear safety goggles or safety glasses with
side shields and a full-face shield when
needed. We recommend a Wide Vision
Safety Mask for use over eye-glasses or
standard safety glasses with side shields.
Always use eye protection
which is marked to comply with
ANSI Z87.1.
WARNING:
To ensure safety and reliability, all repairs should be performed by a
qualified service technician.
Page 3
SAFETY INSTRUCTIONS
The purpose of safety symbols is to attract your attention to possible dangers. The safety
symbols, and the explanations with them, deserve your careful attention and understanding.
The symbol warnings do not, by themselves, eliminate any danger. The instructions and warn-
ings they give are no substitutes for proper accident prevention measures.
WARNING:
Be sure to read and understand all safety instructions in this manual,
including all safety alert symbols such as “DANGER,” ”WARNING,” and “CAUTION”
before using this tool. Failure to following all instructions listed below may result in electric
shock, fire, and/or serious personal injury.
SYMBOL MEANING
SAFETY ALERT SYMBOL: Indicates DANGER, WARNING, OR CAUTION.
May be used in conjunction with other symbols or pictographs.
DANGER:
Indicates an imminently hazardous situation, which, if not avoided,
will result in death or serious injury.
WARNING:
Indicates a potentially hazardous situation, which, if not avoided,
could result in death or serious injury.
CAUTION:
Indicates a potentially hazardous situation, which, if not avoided, could
result in minor or moderate injury.
NOTICE: (Without Safety Alert Symbol) Indicates a situation that may result in property
damage.
SAVE THESE INSTRUCTIONS!
Page 4
Page 4
SAFETY INSTRUCTIONS
FCC STATEMENT
1. This device complies with Part 15 of
the FCC Rules. Operation is subject to the
following two conditions:
1) This device may not cause harmful
interference.
2) This device must accept any
interference received, including
interference that may cause undesired
operation.
2. Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s authority
to operate the equipment.
NOTICE: This equipment has been
tested and found to comply with the limits
for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection
against harmful interference in a residential
installation. This equipment generates, uses,
and can radiate radio frequency energy and, if
not installed and used in accordance with the
instructions, may cause harmful interference
to radio communications. However, there
is no guarantee that interference will not
occur in a particular installation. If this
equipment does cause harmful interference
to radio or television reception, which can be
determined by turning the equipment off and
on, the user is encouraged to try to correct the
interference by one or more of the following
measures: Reorient or relocate the receiving
antenna. Increase the separation between
the equipment and receiver. Connect the
equipment into an outlet on a circuit different
from that to which the receiver is connected.
Consult the dealer or an experienced radio/
TV technician for help.
Page 5
Page 5
WARNING:
Read all safety
warnings and instructions!
Failure to follow the warnings and
instructions may result in electric shock,
fire and / or serious injury. Save all warnings
and instructions for future reference.
WARNING:
Risk of fire and electric
shock. Dry location use only. Do not expose
to rain. Risk of injury.
GENERAL SAFETY RULES
WARNING:
Read all safety
warnings and instructions. Failure to follow
the warnings and instructions may result in
electric shock, fire and/or serious injury.
IMPORTANT SAFETY
INSTRUCTIONS
SAVE THESE INTRUCTIONS
1. This manual contains important safety
and operating instructions for battery
charger Model 252-8026.
2. Before using battery charger, read all
instructions and cautionary markings on
battery charger, battery, and product using
battery.
3. Dry location use only.
4. Do not expose to rain.
5.
CAUTION:
To reduce risk of
injury, charge only Masterforce
®
252-8029,
252-8030, 252-8031, 252-8034, 252-8035,
252-8027 type
. se i r e t t ab e l baeg r ahce r
sepy t r eh tO
of
, t s r ub yam se i r e t t ab
injury and damage.
6. To reduce risk of battery explosion,
follow these instructions and those marked
on the battery.
7. Never charge a frozen battery.
8. Do not operate charger in a closed-in
area or restrict ventilation in any way.
9. Put the charger on the horizontal floor
while using.
10. Save these instructions. Refer to them
frequently and use them to instruct others
who may use this tool. If you lend this tool to
someone else, also lend these instructions
to them to prevent misuse of the product
and possible injury.
DANGER:
People with electronic
devices, such as pacemakers, should
consult their physician(s) before using this
product. Operation of electrical equipment
in close proximity to a heart pacemaker
could cause interference or failure of
the pacemaker.
lanos r ep
causing
SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
Page 6
OVERVIEW
SLIDE OFF
Electrical contacts
LED lights
Air vents
SPECIFICATIONS
Charger Input 120V~ 60Hz 150W
Charging Time For
Batteries
20 minutes 20V 1.5Ah Li-Ion (252-8029)
20 minutes 20V 2.0Ah Li-Ion (252-8031)
25 minutes 20V 2.5Ah Li-Ion (252-8030)
35 minutes 20V 4.0Ah Li-Ion (252-8034)
50 minutes 20V 5.0Ah Li-Ion (252-8035)
75 minutes 20V 7.5Ah Li-Ion (252-8027)
Charger Weight 1lb. 11oz.(0.76 kg)
Optimum Charging
Temperature Range
41°F (5°C) and 95°F (35°C)
Recommended Stor-
age Temperature
32°F (0°C) and 104°F (40°C)
Page 7
ASSEMBLY
WARNING:
If any part is broken
or missing, DO NOT attempt to plug in the
power cord, attach the battery, or operate
the tool until the broken or missing part is
replaced. Failure to do so could result in
possible serious injury.
WARNING:
Do not attempt to
modify this tool or create accessories not
recommended for use with this tool. Any
such alteration or modification is misuse
and could result in a hazardous condition
leading to possible serious injury.
WARNING:
Your tool should
never be connected to the power source
when you are assembling parts, making
adjustments, installing or removing
application tools, cleaning, or when it is
not in use. Disconnecting the tool will
prevent accidental starting, which could
cause serious personal injury.
CONTENTS
FLEXPOWER® battery charger and
instruction manual
UNPACKING
1. Carefully remove the tool and any
accessories from the carton. Make sure
that all items listed in the packing list are
included.
2. Inspect the tool carefully to make sure
that no breakage or damage occurred
during shipping.
3. Do not discard the packing material
until you have carefully inspected and
satisfactorily operated the tool.
Page 8
OPERATION
HOW TO CHARGE
THE BATTERY PACK WITH THE
CHARGER(FIG. 1)
Risk of fire, explosion, and burns. Do not
disassemble, crush, heat above
100°C (212°F) or incinerate. Keep
battery out of reach of children. Use
only with Masterforce
®
chargers 252-8025,
252-8026, 252-8036, 252-8037, 252-8044. Works
with all FLEXPOWER Tools, 18V and 20V.
Model #: 252-8027 20V (7.5 Ah 150Wh)
Distributed by Menards, Inc.
Eau Claire, WI 54703
Made in China.
Customer Service:
1-866-917-4374
BATTERY
FIG. 1
A fully discharged battery pack will charge
about 20-75 minutes (depending on
battery type) in the desired surrounding
temperature.
1. Charge the battery pack with the correct
charger.
2. Connect the charger to a power supply.
3. Attach the battery pack to the charger by
aligning the raised ribs of the battery pack
with the slot in the charger. Slide the battery
pack onto the charger.
4. The charger will communicate with the
battery pack’s circuitry to evaluate the
condition of the battery pack.
5. During normal charging, the green LED
on the charger will flash continuously, and
the green LEDs on the battery pack will flash
one by one from left to right.
6. After charging is complete, the green LED
on the charger will be on, the green LED on
the battery will remain on for approximately
30 minutes and then turn off. The power-
indicator LED lights will not illuminate when
the power-indicator button of the battery
pack is pressed while the battery pack is on
the charger.
7. The battery pack will fully charge, but will
not overcharge, if left on the charger.
NOTICE: The charger has a built-in
cooling fan to decrease the temperature
produced by the charging process.
LED FUNCTIONS OF CHARGER
LED INDICATOR
BATTERY
PACK
RED LED
GREEN
LED
ACTION
Hot/Cold
battery
On Off
Fast charge will
begin when the
battery returns
to 41°F (5°C)
and 95°F (35°C).
Defective Flashing Off
Battery pack or
charger is defective
Charging Off Flashing Charging
Fully
charged
Off On
Charging is
complete
HIGH / LOW
TEMP.
(See Manual)
DEFECTIVE
BATTERY
BATTERY
CHARGING
BATTERY
FULL
Page 9
CHARGING A HOT
BATTERY PACK
If the battery pack is above the normal tem-
perature range, the red LED will illuminate
and the green LED will be off. When the
battery pack cools down to approximately
95°F (35°C), the charger will automatically
begin charging.
CHARGING A COLD
BATTERY PACK
If the battery pack is below the normal tem-
perature range, the red LED will illuminate
and the green LED will be off. When the
battery warms to a temperature of more
than 41°F (5°C), the charger will automati-
cally begin charging.
DEFECTIVE BATTERY
If the charger detects a problem, the red
LED will begin flashing and the green LED
will be off.
1. If registering as defective, remove and
reinsert the battery pack in the charger. If
the LED status reads “defective” a second
time, try to charge a different battery pack.
2. If a different battery pack charges nor-
mally, dispose of the defective battery pack
(see Maintenance section).
3. If a different battery pack also indicates
“defective,” the charger may be defective.
OPERATION
BATTERY CHARGING
If the battery pack is within the normal
temperature range, the green LED will begin
flashing and the red LED will be off, and the
four green LEDs on the battery pack will
flash one by one from left to right.
BATTERY FULL
After the battery is fully charged, the green
LED Light on the charger will be on and the
red LED light will be off; the green LEDs on
the battery will shine for approximately 30
minutes and then turn off.
NOTICE: The battery pack will fully charge,
but will not overcharge, if left on the charger.
NOTICE: Charger may warm with several
continuous charge cycles. This is part of the
normal operation of the charge. Charge in a
well ventilated area.
Page 10
MAINTENANCE
WARNING:
To avoid serious
personal injury, always disconnect the plug
from the power source when cleaning or
performing any maintenance. Contact a
qualified service technician for ALL repairs.
WARNING:
When servicing, use
only identical replacement parts. Use of any
other parts may create a hazard or cause
product damage. To ensure safety and
reliability, all repairs should be performed by
a qualified service technician
WARNING:
Avoid using solvents
when cleaning plastic parts. Most plastics
are susceptible to damage from various
types of commercial solvents and may be
damaged by their use. Use a clean cloth to
remove dirt, dust, oil, grease, etc.
WARNING:
If the supply cord
is damaged, it must be replaced by a
specially prepared cord available through
the service organization.
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
The battery pack isn’t
charging.
The battery pack is not
connected to the charger.
Attach the battery pack to
the charger again.
Page 11
Page 17
NOTES
Page 12
Page 17
NOTES
Page 13
Page 17
NOTES
Page 14
SAVE YOUR RECEIPTS
THIS WARRANTY IS VOID WITHOUT THEM
WARRANTY
90-DAY MONEY BACK GUARANTEE:
This MASTERFORCE
®
brand power tool carries our 90-DAY Money Back
Guarantee. If you are not completely satisfied with your MASTERFORCE
®
brand
power tool for any reason within ninety (90) days from the date of purchase, return
the tool with your original receipt to any MENARDS
®
retail store, and we will provide
you a refund – no questions asked.
3-YEAR LIMITED WARRANTY:
This MASTERFORCE
®
brand power tool carries our famous No Hassle 3-Year
Limited Warranty to the original purchaser. If, during normal use, this
MASTERFORCE
®
power tool breaks or fails due to a defect in material or
workmanship within three (3) years from the date of original purchase, simply bring
this tool with the original sales receipt back to your nearest MENARDS
®
retail store.
At its discretion, MASTERFORCE
®
agrees to have the tool or any defective part(s)
repaired or replaced with the same or similar MASTERFORCE
®
product or part
free of charge, within the stated warranty period, when returned by the original
purchaser with original sales receipt. Not withstanding the foregoing, this limited
warranty does not cover any damage that has resulted from abuse or misuse of the
Merchandise. This warranty: (1) excludes expendable parts including but not limited
to blades, brushes, belts, bits, light bulbs, and/or batteries; (2) shall be void if this
tool is used for commercial and/or rental purposes; and (3) does not cover any
losses, injuries to persons/property or costs. This warranty does give you specific
legal rights and you may have other rights, which vary from state to state. Be
careful, tools are dangerous if improperly used or maintained. Seller’s employees
are not qualified to advise you on the use of this Merchandise. Any oral
representation(s) made will not be binding on seller or its employees. The rights
under this limited warranty are to the original purchaser of the Merchandise and may
not be transferred to any subsequent owner. This limited warranty is in lieu of all
warranties, expressed or implied including warranties or merchantability and fitness
for a particular purpose. Seller shall not be liable for any special, incidental, or
consequential damages. The sole exclusive remedy against the seller will be for the
replacement of any defects as provided herein, as long as the seller is willing or
able to replace this product or is willing to refund the purchase price as provided
above. For insurance purposes, seller is not allowed to demonstrate any of these
power tools for you.
For questions / comments, technical assistance or repair parts – Please Call Toll
Free at: 1-866-917-4374. (M-F 8:30am-5:00pm Est.)
20V LITHIUM-ION CHARGER
03/2019
© 2019 Menard, Inc., Eau Claire, WI 54703
