$20.00


[PB4000]

Power Bank 4000mah_1Power Bank 4000mah_2Power Bank 4000mah_3

Power Bank 4000mah

iPhone Charger

Galaxy Phone Charger

Small and easy to carry in your pocket or bag. It's credit card size.

  • A premium colbalt 18650 battery is used. Capacity:4000mAh.
  • Input Voltage:5V 1A.
  • Output 5V 1A.
  • Certifications: CE, RoHS & FCC .
  • Size 4.1" x 2.7" x .4" 105mm x 68.3mm x 9.8mm

By the afternoon our cell phones have run out of battery charge. A Power Bank is essential urban gear. The built-in cable is very convenient and neatly tucks away when you are not using it. Attached at the end of the short cable is a micro-USB tip which fit all phones except those with the C connector. For Apple phones, there is an extension lightning tip.

4000mah means?

mAh means milliamp hours (1000 milliamps = 1 amp). Therefore a 4000mah means 4 amps of total current inside the battery. For most mobile batteries that use lithium cobalt electrodes, this number should be multiplied by .8 or 80% because the phone will shut off and show empty when the battery voltage falls to 3.0 VDC. Therefore, the deliverable current is actually 3200mAh. The shut down voltage of 3 VDC leaves a little charge in the battery for emergency mode as well as enough current so the charging circuit can read the battery.

How do I use a Power Bank 4000mAh?

Unplug the connector tip from it's holder on the case. Plug the connector into your phone or tablet and start charging. If you have an iPhone, there is a lightning connector tip in the adjacent socket.

How do you charge a Power Bank 4000mAh?

Use a wall adapter or USB port and the included mirco USB cable to re-charge your power bank charger.

How many hours does it take to re-charge?

It will recharge in 2-3 hours with a 1 amp wall charger.

How long does a Power Bank 4000mAh battery last?

It will provide more than 500 cycles of charging discharging for several years and keep this capacity for about 2 years.

Available Options:

Color:  

$20.00

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