Hi everyone,
I am currently using this device UME Slim Series Power Bank 8800mAh to charge my iphone 5.
Given that this link says that iphone 5 capacity is 1440mAh (
https://discussions.apple.com/thread/4699727?start=0&tstart=0), it should mean that the power bank can at least charge the phone 6 times.
However, upon trying it out, it can barely even charge my phone to 100%.
Am I misunderstanding something or is the power bank faulty?
Thanks!
Technically No, you cannot charge up to 6 times.
Not saying anything, but looks like the power bank is of poor quality, hence cheap to able to have 8800mAH at this price.
Better quality power bank are rather expensive and can withstand longer charging period.
Power bank of poor quality may loose the storage faster than any others.
As you may have to experiment and test when you last charged the power bank and to charge to your phone.
There should be led indicator to measure the storage left, as if there is no such indicator it mean it cannot hold the charge of 8800mAH too long.
Hence you may not able to charge up to 100% as it had already no more charge left.
Also the cable do play a role in charging as some are of poor quality.
Always use the original charger and cable to charge at home.
Once you wake up and do the charge first, even with around 60% battery percentage left is still able to charge.
The other purpose of the charger is the able to maintain a stable charging so that the phone can convert and maintain the correct voltage.
Charger are of 5V whereas battery are 3.8V which the phone itself is the actual charge conversion.
Using power bank charging and using the phone at the same time may increase heat and so charging will be affected, unable to reach 100%.
Creating such additional heat to the phone may cause the phone wear and tear faster.
Regards.
