It has 5V output voltage
It has 49 Watt-hour large capacity
It can be recharged about 500 times.
It can output maximum 3 amps electric
The actual current
output varies. This battery maximum current output is 3A, actual output
current can be anything between 0~3A, depends on how much the powered device
The battery package comes with a AC charger and a Car charger. You may charge this battery from 100v ~ 240V AC power source with included AC charger:
Or charge the battery from 12V car cigarette socket with included car charger:
It comes with 4 different DC connectors for different devices.
How long can this external
battery run ?
This battery's capacity is 49Wh
(Watt-hour). For your reference, a Alkaline
AA battery capacity is around 2Wh ~ 3Wh
Part I. Charge the Battery
Part II. Power Status
Different lighting condition of the LED display shows
respective current power level of the battery:
Part III. Use the Batter
1. Make sure the Polarity* is correct. Connect one end of the output power
cable to the battery output port and connect the other end to your device.
2. If the output cable end does not fit your device, select one of the
provided connector tip that can snugly plug into the DC jack of your device,
then plug the chosen tip to the supplied power output cable.
battery and your device are connected with each other, it begins to provide
Reminder: Please fully charge the battery prior to the
The default battery output
cable and connectors are configured as positive polarity, which meet the needs
of most of devices. Please make sure your device polarity is positive, if not,
you can not use this battery.
Positive polarity means inside the connector is positive, outside the
connector is ground.
It is CRITICAL that you determine the correct
polarity needed for your device before using the battery. FAILURE TO DO SO MAY
RESULT IN SEVERE DAMAGE TO YOUR PRODUCT!
If your device needs negative
polarity, you can not use this battery.
To determine the correct
polarity for your device, inspect the DC adapter jack or the label of your
product thoroughly for information about the products polarity. There will be a
symbol with a plus sign on one side and a minus sign on the other with a circle
between them. The circle will have an opening so that it looks like a "C". If
the opening of the circle is on the side with the plus sign the polarity is
positive. If the opening is on the side with minus sign the polarity is
negative. If you cannot find a polarity sign on your product you need to call
the product's manufacturer to find out what the polarity is.
Part IV. Safety Cautions
1. Do not subject the battery to extreme
2. Do not over charge the battery to avoid
shortening of battery life.
3. Do not immerse in water.
4. Do not attempt to open or break apart the
5. Do not throw the battery in fire or
attempt to burn it.
6. Keep the battery away from excessively dry
or humid environments.
7. Do not use the battery if it has been
subjected to shock or damage; take it to qualified technician for inspection and
1 x Battery
1 x AC Charger
1 x Car Charger
1 x Output Cable
4 x Connectors
If you need USB port for this battery. You may order our optional USB adapter
USB Adapter optional, not included with the battery package.
This USB adapter can plug to the BX550 battery power output cable to form a USB output port like this: