Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Depends on when you start charging it. But since the X is rated to have a design capacity of 2716 MaH (if brand new). I'd say 1 full cycle and 85% of the next cycle.
 
  • Like
Reactions: Hieveryone
Depends on when you start charging it. But since the X is rated to have a design capacity of 2716 MaH (if brand new). I'd say 1 full cycle and 85% of the next cycle.
less since the charging and discharging comes with a loss
 
The mAh ratings of the batteries in power banks cannot be used to directly translate, though simple division, into the number of charges for a particular device based on the mAh rating of their batteries, for a number of reasons.

Rather than writing a spiel explaining why, you can simply read this.
 
  • Like
Reactions: JPack
Haha I didn't think of that. I charged the external battery, then charged my iphone from like 19% to 100%, and I don't think it used much of the external battery at all.

Well let us know once you did your own testing.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.