NPower 450W FLEX User manual

IMPORTANT: For safe and optimum performance, Jump Starter must be used properly.
Carefully read and follow all instructions and guidelines in this manual and give special
attention to the CAUTION and WARNING statements.
Please keep this manual for future reference.
WARNING
Battery Leakage/Seeping : Unit must be stored upright or else some batteries will
leak and cause damage not covered by the manufacturer.
Model number-24928
OWNER’S MANUAL
450W FLEX POWERPACK XL

Conventions Used
The following conventions are used in this manual.
WARNING
Warnings identify conditions that could result in personal injury or loss of life.
CAUTION
Cautions identify conditions or practices that could result in damage to the unit or to
other equipment.
NOTE: These notes describe an important action item or an item that you
must pay attention to.
Abbreviations and Acronyms
A Ampere
AC Alternating Current
Ah Amp-hours
DC Direct Current
mA milli-Ampere
V Volt
LED light-emitting diode

CONTENTS
1. Introduction............................................................................................
2. What’s Included.....................................................................................
3. Battery Choices Available .....................................................................
4. Installing the Battery..............................................................................
5. Specifications........................................................................................
6. Important Safety Instructions................................................................
7. Features................................................................................................
8. Operations.............................................................................................
9. Recharging the Powerpack Battery......................................................
10. Troubleshooting...................................................................................
11. Warranty...............................................................................................
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2.
Easy-to-use and designed for reliable service, the 450W FLEX POWERPACK XL can run
many AC appliances and 12V DC appliance whenever you need power for work or play,
at home or on the road.
Features/Benefits
The 450W FLEX POWERPACK XL:
Jumpstarts vehicle engines (With 500-800 amp)
250 psi air compressor (Inflates tires and small sports equipment)
Powers 110V AC appliances (Run electronic appliances up to 450W)
Charges USB-chargeable devices
LED light for emergency
Powers 12V DC appliances
1. INTRODUCTION
2. WHAT’S INCLUDED
3. BATTERY CHOICES AVAILABLE
NO.
1Powerpack with jumpstart cables It is the main body of the unit, the
unit is without the battery
2AC charging adapter It can recharge the unit from a standard AC wall
outlet and it can only be used to recharge the internal battery of the unit.
3 Owner’s instructions Read the instruction carefully before using the unit.
4 Black Plastic Box Use when installing a NPOWER AGM battery
5 Tool Kits Include a wrench and a screwdriver for easy installation
Description
Buy one of these batteries with maximum dimensions of 7.67*5.15*7.32 inches:
1. U1 Battery
2. U1-R Battery
3. Sealed Lead Acid AGM Battery
-Item# 829421 NPower 18Ah can provide up to 500 Amp jumpstart power
-Item# 82942 NPower 22Ah can provide up to 800 Amp jumpstart power
NOTE: Battery is not included

3.
4. INSTALLING the BATTERY
CAUTION:
Batteries contain acid and produce explosive gasses. Shield eyes and face from
batteries all the time.
CAUTION:
Wrong connection on the battery terminals will trigger the alarm and damage the
powerpack. PLEASE MAKE SURE TO CONNECT THE BATTERY TERMINAL TO
THE CORRECT BATTERY TERMINAL CABLE.
Battery Installation Procedures:
(1)Turn ALL (Jumpstart, AC, USB, and Compressor) switches to “OFF” position
(2)Unscrew the back cover of the powerpack
(3)Lay down the powerpack a flat surface and put in your choice of battery
(U1/U1-R/AGM)
(4)Connect the red battery terminal cable to the positive (+) terminal of your battery
(5)Connect the black battery terminal cable to the negative (-) terminal of your battery
(6)Put back the cover and tighten the screws
NOTE: Since AGM battery is usually thinner than U1 battery, we
include a black plastic box to hold the battery, please see below

4.
5. SPECIFICATIONS
Electrical specifications
12 DC section
Built-in incandescent light (replaceable)
DC fuse
0.5W bulb
15A
AC Power Section
Output power
Continuous output power
Five minute AC output power
AC output surge capacity
Output voltage
360W
450W
600W
105V-125V
Output frequency 58Hz-62Hz
Output wave form Modified sine wave
No load current draw ﹤0.3A
Input voltage range 10.5V-15.5VDC
Low battery alarm 11.0±0.3V DC
Low battery shutdown 10.5±0.3VDC
High battery voltage shutdown 15.5V±0.3VDC
Over temperature shutdown Yes
Overload shutdown Yes
Operating temperature range 14℉~104℉(-10℃~40℃)
Storage temperature range
AC charging bulk charging current 500mA
Peak charging voltage (nominal) 14.2V±0.2V
Charging restart voltage (nominal) 12.9V±0.2V
Pressure 250 PSI (Ib./in²)
Air compressor
-4℉~158℉(-20℃~70℃)
Internal battery charging
controller system

5.
Jump start cables (Size/Length) 4 AWG/4ft
AC to DC charging cable 0.33mm2×1.8m
Physical specifications
Dimensions L*W*H (14.2*7.1*16.6 in (361*180*422mm)
weight 12lb.(5.5Kg) without the battery
Accessories
6. IMPORTANT SAFETY INSTRUCTIONS
WARNING:
The 450W FLEX POWERPACK XL is not intended for use in connection with life
support systems or other medical equipment or devices.
WARNING: Shock Hazard. Keep away from children
The Powerpack generates the same potentially lethal AC power as a normal
household wall outlet. Do not insert foreign objects into the AC outlet, DC Powerpack
Socket, Jumpstart Cable Port, the ventilation holes; do not expose this product to
water, rain, snow, condensation, or spray.
WARNING: Explosion Hazard
Do not use this product near flammable fumes, or gases. Do not use this product in
an enclosure containing automotive-type lead-acid batteries. These batteries, unlike
the sealed AGM battery, vent explosive hydrogen gas which can be ignited by sparks
from electrical connections.
When working on electrical equipment, always ensure someone is nearby to help you in
an emergency.
WARNING: Heated Surface
Ensure at least 2” (5cm) air space is maintained on all sides of the Powerpack. During
operation, keep away from materials that may be affected by high temperatures such
as blankets, pillows and sleeping bags.

6.
WARNING: Fire Hazard
Never allow jumpstart cables’ red and black clips to touch each other or another
common metal conductor. This could cause damage to the unit and/or create a
sparking/explosion hazard.
WARNING: Fire Hazard
Jumpstart cable clips must be connected positive to positive (red clip to battery “+”)
and negative to negative (black clip to battery “-“or engine ground). A reverse
polarity connection (positive to negative) may cause damage to the unit and/or
create a sparking/explosion hazard.
WARNING: Fire Hazard
The jumpstart feature is designed for short term operation only- less than 5
seconds. Operating the jumpstart feature for more than 5 seconds may cause
damage to the unit. Allow the Powerpack to cool down for at least 3 minutes after
each jumpstart.
WARNING: Risk of Explosion, Fire or Burns
The battery terminals exposed at the Jumpstart Cable Port have enough energy
present to cause a spark, creating an explosion hazard, or to cause burns if a metal
object contacts both terminals. Always clip the plastic guard over the Port when not
in use.
WARNING: Fire Hazard
Do not leave the compressor unattended while operating. The compressor is
designed for short term operation only. Operation of the compressor over an
extended period of time will cause the compressor unit to overheat and may cause
damage. Allow the compressor to cool down for 10 minutes after each 10 minutes
of continuous operation.
CAUTION: Equipment Damage
Do not connect any AC appliance with neutral conductor connected to ground to
the Powerpack.
CAUTION: Equipment Damage
Do not expose the Powerpack to temperatures over 104℉(40℃).

7.
Precautions when working with batteries
WARNING: Explosion and Fire Hazard
1. Follow all instructions published by the battery manufacturer and the manufacturer of
the equipment in which the battery is installed.
2. Make sure the area around the battery is well-ventilated.
3. Never smoke or allow sparks or flame in vicinity of the engine or batteries.
4. Be careful not to drop metal objects on the battery or allow metal tool to simultaneously
touch the positive and negative cable ends or battery terminals. This may cause a
spark or short-circuit the battery or other electrical parts and cause an explosion.
5. Remove personal metal items such as rings, bracelets, necklaces, and watches when
working with batteries. Batteries produce a short-circuit current high enough to weld a
ring or other similar objects to metal, causing a severe BURN.
6. If you need to remove a battery, always remove the positive terminal from the battery
first. Make sure all accessories are off so you don’t cause an arc.
7. Someone should be within range of your voice, or close enough to come to your aid
when you work near batteries.
8. Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing,
and eyes.
9. Wear complete eye and clothing protection. Avoid touching your eyes while working
near batteries.
10. If battery acid contacts skin or clothing, wash immediately with soap and water. If acid
enters your eyes, immediately flood them with running cold water for at least twenty
minutes and get medical attention immediately.
11. Keep a supply of baking soda on hand in the area of the batteries. Baking soda
neutralizes lead-acid battery electrolyte.
Precautions for using rechargeable appliance
CAUTION: Equipment Damage
The output of the powerpack inverter is a modified sine wave.
Most rechargeable battery-operated equipment uses a separate charger or transformer
that is plugged into an AC receptacle and produces a low voltage charging output.
Some chargers for rechargeable batteries can be damaged if connected to the
450W powerpack.

8.
CAUTION:
Do not use the following with the 450W powerpack:
● Small battery-operated appliance like flashlights, razors, and night lights
that can be plugged directly into an AC receptacle to recharge.
● Some chargers for battery packs used in hand power tools.
Note: If you are unsure about using your rechargeable appliance with the
powerpack, contact the equipment manufacturer to determine the rechargeable
appliance’s compatibility with the modified sine wave (non-sinusoidal) AC
waveform.
Attention: Charge Before Use
Charge the powerpack with your choice of battery for at least 48 hours immediately
after purchase. Recharge after each use and at least once every three months. See
“Recharging the Powerpack Battery”. Failure to follow these instructions will void the
product warranty.
7. FEATURES
Front view
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5

9.
1. USB power port—it can provide 5V/500mA
2. USB power indicator—if the USB switch is on and there is electricity in the USB port.
This LED indicator illuminates.
3. Slip switch—if the switch is slipped to left, the USB port can provide power. If it is at
the right point, the white LED lamps illuminate. If it is at the middle point, the USB port
and LED lamps are all off.
4. Charging indicator—a double-color LED indicator. When the battery is being charged,
this LED indicator light red, when the battery is fully charged, the LED indicator light
green.
5. DC input port—you can charge the battery in the unit by inserting the AC to DC
adapter charger into this DC port.
6. Battery capacity indicator
The value of the battery.
U<12.2V
12.2V<U<12.4V
12.4V<U<12.6V
U>12.6V
Display mode
Only red LED indicator lights.
Red and yellow LED light.
Red, yellow and one green LED light.
Red, yellow and two green LED all light.
Note: It is recommended that you should check the battery voltage after 30
minutes charging.
7. Battery capacity button— When pressed, you can see the battery level according to
the battery capacity indicator.
8. Correct connecting indicator— It is a green LED indicator. When you connect the
clamps to the battery correctly, that is red clamp to the positive and black clamp to the
negative, this LED lights.
9. Reverse polarity LED indicator— It is a red LED indicator. When you connect the
clamps to the battery in the wrong way, this LED lights, there is an alarming sound
from the buzzer, indicating error.
10. 110V AC socket switch—only when this switch is on, the 110V AC is available.
11. 110V AC socket—it is a 110V AC output port.
12. White LED lamps—there are four white LED lamps for emergency use.
13. 12V DC socket— it is an input or output easy-access port. You can insert the cigarette
plug into it to charge the interior battery or power 12V accessories.

10.
Note：The unit contains a 15A fuse for 12V DC socket over current protection.
Note：It is recommended that you use the unit to power 12V accessories less
than 8A.
Note: It is recommended that you charge your choice of battery by the AC to
DC adapter charger (provided) which has protection function. There is no
protection function if you choose to charge the battery by using the clamps or
the cigarette plug.
14. Jumpstart power switch— manual rotary switch. When jumpstarting a vehicle, turn off
the switch and the vehicle engine， connect the unit to the vehicle, then you can turn
on the switch, you must pay attention to the operation process.
15. Red battery clamp
16. Black battery clamp
Note: They should connect with vehicle when the unit is used to jump start a
vehicle. Be sure that the jumpstart switch is in off position and the clips are
connected in the right way, that is red to positive polarity, and black to
negative polarity.
17. Portable handle
Rear view
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11.
18. Pressure gauge shows the PSI (lbs/in²)
19. Compressor switch turns the compressor unit on and off.
20. Valve connector with connector hose
21. AC to DC adapter charger
Features of the AC to DC charger
Input voltage: 110V AC
Output voltage: 13.5V DC
Input current: 0.5A
Note: it is recommended that you use the AC to DC adapter to charge the
battery.
22. Reverse polarity indicator (battery terminal cable)—When you connect your choice
of battery to the wrong battery terminal cable, there is a alarming sound indicating
error.
Note: It will damage the product when the error occurs.
Adapter
21

12.
8. OPERATIONS
CAUTION:
Read all operating instructions before operating the Powerpack.
CAUTION:
The Powerpack is not intended for use as a UPS (Uninterruptible Power Supply).
The unit should be operated only in locations that meet the following
requirements:
Don’t allow water or other liquids to drop or splash on the unit.
Cool
Dry
Storage temperatures should be between -10℃and 40℃(14℉and
104℉).
Ventilated Leave at least 2” (5cm) clearance around the Mobile Booster Pack for
air flow. Ensure that the ventilation openings are not obstructed.
Safe Do not operate the unit in the same compartment as batteries or in
any compartment capable of storing flammable liquids like gasoline.
Do not operate the unit where it will be exposed to battery gases.
These gases are very corrosive and prolonged exposure will
damage the Mobile Booster Pack
Protected
from battery
gases
AC Appliance
The Powerpack has one AC power outlet for use with AC appliance. You can either plug
the appliance directly into the AC outlet or you can use an AC power bar to increase the
number of outlets available. However, for continuous operations, the combined loads
must be less than 360W. The less wattage used, the longer the Powerpack will operate
before recharging is required.
Some appliances may be difficult or impossible to operate from the Powerpack. They may
have high surge requirements or may be incompatible with the output waveform of the
Powerpack. See “High Surge Appliances” and “Trouble Appliance”,
Typical AC appliances that can be used on the Powerpack are listed in the table below.
Note: Below table is only for reference, the actual operating time will based on
the actual AC appliances using wattage.

13.
Operating AC Appliance
1. Check battery status to ensure the battery is fully charged.
2. Open the AC Outlet cover.
3. Turn the AC socket switch ON.
4. Plug the AC appliance into AC outlets.
5. Turn the AC appliance ON.
6. Recharge the Powerpack immediately after use. See “recharging the Powerpack
Battery”.
Low battery alarm
An audible alarm will begin to beep intermittently when the battery reaches11.0VDC. The
Powerpack must be reset manually after all AC and DC loads are removed. If after a
while the alarm warning is ignored and a manual reset is not performed the unit will do a
complete shutdown automatically.
Overload and Over-Temperature Protection
In the event of an overload (>360W) or overheating, the Powerpack automatically shuts
down power to the AC outlets. If after a while the alarm warning is ignored and a manual
reset is not performed the unit will do a complete shutdown automatically.
High surge appliance
The wattage rating of AC appliance is the average power used by the appliance.
Appliances such as televisions, computer monitors and appliances with motors consume
much more power than their average rating when they are first switched on.
Although Powerpack can supply momentary surge power up to 600W, some appliances
may exceed the capabilities of the Powerpack and trigger the inverter’s safety overload
shutdown circuit.
Trouble Appliance
The output of the Powerpack inverter is modified sine wave. Some equipment may be
damaged by the inverter’s modified sine wave output (non-sinusoidal).
Some appliance, including the types listed below, may be damaged if they are connected
to the inverter.
Electronics that modulate RF (radio frequency) signals on the AC line will not
work and may be damaged.
Speed controllers found in some fans, power tools, kitchen appliance, and other
loads may be damaged.
Some chargers for small rechargeable batteries can be damaged.
Metal halide arc (MHI) lights can be damaged.

14.
Note: If you are unsure about powering any device with the inverter, contact
the manufacturer of the device to determine whether it is compatible with the
modified sine wave output of the inverter.
12 V DC Appliances
The Powerpack can operate one 12V DC auto, RV, marine, or other portable DC
appliance that draws 15 amps or less from its DC socket. When the unit’s emergency
light, USB port, and air compressor are also running, the combined load must not
exceed 124 W, The less combined wattage used, the longer the Powerpack will
operate before recharging is required.
Typical 12V DC appliances that can be used on the Powerpack are listed in the table
below.
Note: Below table is only for reference, the actual operating time will be
based on the actual DC appliances using wattage.
Operating DC Appliance:
1. Check battery status to ensure the battery is fully charged.
2. Open the DC socket/USB port cover.
3. Plug the DC appliance into the DC socket.
4. Turn the DC appliance ON.
5. Recharge the Powerpack immediately after use.
NOTE:
There is no 12V cigarette plug attached for this unit!
USB Devices
The Powerpack can charge one USB-chargeable device through its USB port.
Compatible devices include most MP3 players, PDAs, digital cameras, and camcorders
that have internal batteries which can be charged via the USB port of a desktop/laptop
computer.
USB-chargeable devices usually include a special USB cable (not supplied) that
attaches one end to the USB port and the other end to the device.
12V DC appliance
5W incandescent light
(built into the unit)
Cellular telephone
Small portable cooler
Watts
5
6
30
Hours
48
40
8

15.
Jumpstarting a vehicle’s engine
You can use the Powerpack to jumpstart a vehicle (or boat engine) that has a 12V
starting battery using the jumpstart cables supplied with the unit.
WARNING: Fire Hazard
Never allow cables’ red and black clamps to touch each other or another common
metal conductor. This could cause damage to the unit and/or create a
sparking/explosion hazard.
WARNING: Fire Hazard
The connection of the cables to the vehicle’s battery terminals must be positive to
positive (red clamp to battery “+”) and negative to negative (black clamp to battery
“-“). A reverse polarity connection may cause damage to the unit and/or create a
sparking/explosion hazard.
NOTE:
Closely follow these instructions for boosting your vehicle as they may be different
from the instructions supplied with other boosting products or boosting cables.
To jump start a vehicle with the powerpack:
(1). Turn off the vehicle and all accessories.
(2). Place the Powerpack on a flat and stable surface near the battery which needs to
be started. Ensure that the Powerpack’s jumpstart power switch is “OFF”.
(3). Connect the red positive (+) clamp of the cables to the positive (+) terminal of the
engine battery.
(4). Connect the black negative (-) clamp of the cables to the engine block, cylinder
head, or other stationary heavy metal part of the motor. If the red “Reverse Polarity”
LED illuminates, then reverse polarity has been detected. Correct polarity must be
established before proceeding. Disconnect the boosting clamps from the vehicle’s
battery and do the steps (3) and (4) again.
(5). Switch on the jumpstart power switch. Before starting the engine, make sure the
booster pack and the cables are clear of the metal parts and other moving things.
(6). Crank the engine for 5 seconds or until it starts, whichever is first.
WARNING: Fire hazard
Do not crank the engine for more than 5 seconds. The jumpstart feature is
designed for short term operation only. Operating the boosting feature for more
than 5 seconds may cause damage to the unit. Allow the 450W FLEX
POWERPACK XL to cool down for at least 3 minutes after each boost.
(7). Switch off the jumpstart power switch.
(8). Remove the red positive (+) clamp and then the black negative (-) clamp from the
engine battery.

Using the air compressor
WARNING: Fire Hazard
The compressor is designed for short term operation only.
Operating the compressor over an extended period of time will cause the compressor
unit to overheat, which could lead to fire.
Allow the compressor to cool down for 10 minutes after each 10 minutes of
continuous operations.
WARNING: Fire Hazard
Do not leave the compressor unattended while in operation. Keep out of reach of
children.
WARNING: Risk of Personal Injury or Damage to Equipment
Do not exceed the recommended pressure of either the compressor or the object
being inflated. The compressor is capable of inflating to 250 PSI. If the recommended
pressure is exceeded, an explosion may result.
WARNING: Risk of Personal Injury or Damage to Equipment
If the Powerpack shuts off due to an over-temperature conditions, turn OFF the
Compressor switch and allow the compressor to cool for 15 minutes before
re-starting. If the power switch is not turned off, the compressor will automatically turn
itself on when it reaches an acceptable operating temperature.
If left unattended it is possible that the unit can over-inflate the object being inflated
and create an explosion hazard.
CAUTION: Equipment Damage
The Powerpack cannot be used to inflate large capacity inflatables such as float
tubes, large air mattresses, transport truck tires, and inflatable boats. These types of
products require extended inflating times which may damage the compressor.
Inflating Tires
CAUTION:
If the pressure gauge on the compressor indicates more than twice the recommended
pressure for the object you are inflating and you have only started to inflate the object, the
valve connector is incorrectly connected to the valve stem. This may damage the
Powerpack. Remove and reattach the valve connector to the valve stem.
To inflate your vehicle, motorcycle, or bicycle tires:
1. Locate Valve Connector.
2. Remove from storage and uncoil hose.
16.

17.
3. Remove Valve Stem Cap from tire to be inflated.
4. Place Valve Connector firmly and completely over valve stem on the tire.
5. Press the Thumb Latch toward the house until it locks into the closed position.
6. Press the Compressor switch to turn the compressor ON.
7. Inflate to desired pressure.
8. Press the Compressor switch to turn the compressor OFF.
9. Press the Thumb Latch away from the house and remove from valve stem.
10. Double-check the air pressure with a pressure gauge.
11. Replace Valve Stem Cap.
Inflating small sport equipment
You can use the compressor to inflate small sports equipment such as balls (Soccer
balls and footballs).
CAUTION:
The Powerpack cannot be used to inflate large capacity inflatable such as float
tubes, large air mattresses, transport truck tires, and inflatable boats. These types
of products require extended inflating times which may damage the compressor.
To inflate small sports equipment:
1. Choose the appropriate nozzle adapter (not supplied).
2. If an adapter is required, insert the nozzle adapter into the valve connector, turning it
clockwise to tighten, and close the thumb latch,
3. Place the valve connector fully on the valve stem or into the valve receptacle on the
item to be inflated.
4. Turn the compressor ON and inflate to appropriate pressure.
5. Turn the compressor OFF before removing valve connector from the valve stem.
6. Remove nozzle adapter form the valve connector and store in storage compartment
or Accessory Bag.
CAUTION:
Allow the compressor to cool down for 10 minutes after each 10 minutes of
continuous operation. Repeat if necessary.
Note: Leave the thumb latch in the open position for storing to relieve
pressure on the internal mechanism.

9. RECHARGING THE POWERPACK BATTERY
18.
You can recharge the battery using one of the following methods:
The AC Charger (supplied) plugged into a standard 110 V wall outlet.
Use the DC-to-DC charging cable (not supplied) with the cigarette 12V power
outlet in your vehicle as you drive.
CAUTION:
Do not operate AC or DC appliance while the Powerpack is being charged.
Charging with the AC charger
Using the AC Charger is the simplest method for recharging the battery. While charging
from an AC source, the charging status LED indicator will light red. When the battery has
reached capacity, the indicator will light green.
Charging when the battery is fully discharged takes around 28 hours.
NOTE:
Recharge the 450W FLEX POWERPACK XL as soon as possible after each use.
When not used the Booster Pack, it should be recharged every 3 months!
To recharge with AC charger:
(1)Turn the rotary switch to the “OFF” position.
(2) Plug 110V AC charger into charger input socket on the front of the unit.
(3) Plug 110V AC charger into 110V AC electrical socket.
(4)Never stop until the battery is fully charged for about 28 hours.
CAUTION:
The 28-hour charging time for the unit assumes that there is 110V at the AC wall
outlet. If the voltage is less than 110V AC, it may take more than 28 hours to fully
recharging.
Once fully charged, the charging current automatically reduces to a floating charge mode,
and the unit may be left permanently connected to the AC charger.
Charging with the DC to DC charging cable with cigarette 12 V Power
outlet
WARNING: Fire and Explosion Hazard
Do not use this recharging method if your vehicle’s electrical system operates above
15V. This may lead to accumulations of hydrogen, causing exposure to fire and
explosion hazard. This condition is typically found in marine appliances or portable
generators with DC output.