Safely Charging Xiaomi Power Bank

[Deactivated] on 31/08/2016 - 13:08

I have the Xiaomi 10000 mAh Power Bank. Its states that it will take around 5.5 hours to charge the power bank if using an output of 5V/2A . I have a charging adapter which gives an output of 5.3V/2A , could I use this to charge the power bank? Or would it affect the performance of the power bank considering the adapter gives 0.3V more than required, however the same amperage. Thanks

Electrical & Electronics

Comments

  • altomic on 31/08/2016 - 13:16
    +2

    .3 volts is going to make very little difference. it's less than 10%.

    • [Deactivated] on 31/08/2016 - 13:18

      Thanks. Is there a maximum voltage that the power bank can take whilst charging? :)

      • altomic on 31/08/2016 - 13:26
        +1

        depends on the components of the powerbank. Xiaomi are apparently reputable and well built so they could possibly take 20% more voltage. but 5.3v Vs 5v - I don't see it as a problem. I'd be using that charger if I had a powerbank.

        my rule of thumb is +10% should be fine. most electronic devices (unless a microdevice- then i wouldn't risk it) are usually underrated for their tolerance as a safe guard. (source - did a 1 year circuitry course many years ago)

        • [Deactivated] on 31/08/2016 - 13:30

          No worries, thanks! :)

    • Thrawn on 31/08/2016 - 14:25
      +1

      USB spec officially has +-0.25V tolerance. So its a tad over spec. But USB chargers often have slightly higher voltage so voltage drop from longer cables is less of an issue.

      Use like a 1+ meter USB cable and the voltage drop should bring it closer to 5V spec

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