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OVERVIEW

You can use the universal rechargeable battery to power any portable device. Connect MP3450 to your laptop 
computer, portable DVD player, digital camera, digital camcorder, portable CD player, PDA, mobile phone, MP4,
GPS, or other portable devices to extend their working time.  As an added bonus, MP3450 will supply power to the 
device while also charge the internal battery that battery requires less than 80W (output 19V/4A) power. Thus, take care
of these matters.

Verify whether the current consumption of the portable device (especially the laptop PC) is over 4 Amp. 
If the device consumes more than 4A that the maximum provided by MP3450, it will shut down when turn it
on and damage the battery bank. But there are two kinds of methods to help the user as below:  

A. 

Take off the electronic device’s internal battery; the MP3450 can supply power to the electronic device directly. The

operating method is the same as indoors & outdoors operation. 

B.

Don’t take off the electronic device‘s internal battery. Adjust the output voltage of MP3450 lower than the input 

voltage of electronic device. For example :
Your electronic device’s input voltage is 18.5V; please adjust the output voltage of MP3450 to 14V or 16V scale. It’s
just only offer power to your electronic device working and doesn’t charge device’s internal battery, as MP3450’s
output power is not enough. It also can avoid MP3450 shutting down when charge the internal battery and offer power
to the device at the same time. 

UNPACKING MP3450

Your MP3450 package includes the following items:

1. Rechargeable battery
2. Leather case(MP3450 is Leather cover )
3. AC power adapter ( AC Input 100~240V, DC output 20V/3A)
4. Power output cord
5. Output Adapter tips ( 8 pcs) with punching bag

6. User guide (not shown)

Voltage / Capacity

LED Indicator

Voltage / Capacity push

button indicate LED

Charging Indicator 

DC IN

USB port

Extension Battery Port

ON/OFF Switch

DC OUT

BEL5802

+

-

UNIVERSAL EXTERNAL BATTERY 

FUNCTION DESCRIPTION

A.

Power ON/OFF switch : 

1. Power ON ( Slide switch to left position )
The DC OUT port and USB port will output voltage
2. Power OFF ( Slide switch to right position )

The DC OUT port and USB port will disable output 

B.

DC OUT port : output 5 ~19 V by the voltage/capacity push button to setting when connected With power output cord.

C.

USB port : output 5.25 ~ 5.4V /2A when charging or power turn ON for MP3450D

D.

DC IN jack : Charging input port connected with DC output plug of AC power adapter. The input voltage from 9V to 20V.

E.

Capacity extended port :  connected with MP3460 for extended the capacity to double.

F.  

Voltage/capacity push button & indicated LED ( Blue color ):      

1. The voltage/capacity push button will be Voltage scale select function when 
below state :

a. Power ON/OFF switch turn ON and DC OUT port connected 
with power output cord; but disconnected with loading device. The indicated LED no light . 
To press push button can adjust output voltage scales from 5V. To 19V while this state. 

2. The voltage/capacity push button will be Capacity display function when below state. And 
the push button’s indicator LED will light blue color while on the b/c/d operating condition as below: 

a. When ON/OFF switch slide to “OFF” position( indicator LED will no light in this state).
b. The ON/OF switch slide to “ON” position  and  The DC OUT port connected with loading by 
power output cord  and  the loading current more than 80mA ( Auto lock ).
c. The ON/OF switch slide to “ON” position  and  The DC OUT port without connected power 
output cord.
d. When the charging voltage plug in the DC IN port  and  the DC OUT port without connected
the power output cord.

G.

Voltage/capacity LED indicator : according to the voltage/capacity push button function to display output voltage scale or

battery capacity status.

H.

Charging indicator : when orange : on charging / green : 80~90% fully charged.

 

CHARGING MP3450

1. Before using MP3450 for the first time, you must charge the device for 3/4 hours. Use the AC power adapter to charge
MP3450.

2. Put the output plug of AC power adapter into the DC IN jack of MP3450.
3. Put the power adapter into a wall socket. MP3450 can be fully charged in 3/4 hours when completely empty. The orange
CHARGE LED will turn on greenindicate the battery is fully charged.
4. When the battery capacity indicates FULL, unplug the power adapter.
5. Start to use battery.
NOTE: MP3450 will automatically stop charging when it is fully charged, so you don’t   worry about charging it over night.

USING  MP3450  

There are two connection ways for your operation. 

A. Indoors (The Pass through charging connection):

The AC power adapter connected to MP3450D’s DC IN jack and the DC OUT port of MP3450 connected to Laptop’s DC IN jack
by the power output cord. The AC power adapter will offer power to laptops working and charged laptop’s internal battery firstly.
It will follow charged MP3450D after laptop’s internal battery has charged fully. The MP3450D also will be charged fully at 
finally. It will total charged fully after 7~8h by connected as this diagram if empty of all battery ( MP3450D&Laptop’s internal
battery).It doesn’t matter the laptop is operated or not .  
It will auto stop charging MP3450D battery while offer to Laptop’s loading current higher than 2±0.2A. ; it will start charging
MP3450D if Laptop’s loading current less than 2±0.2A. The Laptop’s demand power always priority one of support from AC Power
adapter .

Power ON/OFF

Switch

DC IN

USB Port

Capacity extended

Port

Charging indicator

DC OUT Port

Steps:

1.

Select the adapter tip that fits securely into the DC in jack of your portable device. And connect the adapter tip with the

power output cord (but not the device), These batteries only support a centerpositive of DC in jack of device only, which with
the polarity symbol as

Please check polarity of your portable device to avoid possible damages.

2. 

Power turn ON by ON/OFF switch firstly. The 5V LED will turn on. plug the large end of the power output cord into the DC OUT

port of MP3450D. If you had selected a voltage previously, the voltage output will auto reset to the initial voltage (5V) when you
exchange adapter tips or disconnect power output cord from the DC OUT port of MP3450D. You should set voltage again. Due
to the auto reset function. 

3.

Check the voltage specification of your portable device before setting MP3450 output voltage. (Please check the laptop’s 

original AC Power Adapter output current which is on the label.)It’s setting the output voltage by press voltage selector button.

4. 

The MP3450D will into Voltage scale AUTO lock state when the power output cord connected with loading device. This will

prevent you from accidentally selecting a different voltage while your device is connected. The push button’s indicated LED will
light blue when AUTO lock .

5. 

Connect the output tip into the power jack of the portable device after voltage scale has setting already. If need to change

the voltage, please disconnected the power output cord with loading device firstly. Then select a new voltage scale by press
voltage/capacity push button. 

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