Power Bank 4000mah_1Power Bank 4000mah_2Power Bank 4000mah_3

This mobile phone charger is the same as using a 1 amp wall charger. How many hours it will take to charge your phone depends on both the capacity of your phone battery and the depletion of the charge. Example, if your battery requires 2000mamps and it is completely empty, it will take approximately 2 hours to charge your phone.

This Power Bank Charger is small and easy to carry.

The Power Bank 4000mah will charge all mobile phones using the the micro-USB connector or the Apple Lightning connector. It will not charge phones using the C connector.

One can also use it for 5V to power development boards.

  • Input voltage: 5V @ 1 amp.
  • Output voltage: 5V @ 1 amp.
  • Certifications: CE, RoHS & FCC.
  • Size: 104.5mm x 68.65mm x 9.7mm or 4.1" x 2.68" x 3.875".
  • How do I use this Power Bank Charger?

    Simple: undo the short cable and plug that wraps around the end and plug the connector into you phone. A flashing LED will start while charging. When it is complete the LED will stop flashing and turn solid. An Apple "Lightning Connector" is tucked away inside the case. Put it on the end of the microUSB plug if you have an Apple phone.

    How long does a Power Bank 4000 last?

    About 2 years if you are using it constantly. It will provide more than 500 cycles of charging and discharging.

    Will it charge my phone completely?


    What does 4000mAhr mean?

    mAh means milliamp hours (1000 milliamps = 1 amp) 4000 mAh = 4 Amp hour. This means that it will discharge 1 amp for 4 hours. This is the measure of available current inside the Power Bank that can be delivered for one hour. For most mobile batteries the 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 2080 mamps. The shut down voltage of 3 VDC leaves a little charge in the battery for emergency mode a well as enough voltage so the charging circuit can read the battery.

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