MacBookAir USB powered charger Answered
I want to share my idea and also my solution for you (when It will work out:). I wanted to build a low-cost charger for my MacBookAir Early 2014. My idea was to use my Anker Power Pack with 20100 mha to charge my battery (much higher than the battery in the MacBook Air) on the MacBookAir. Problem the outlet of the power pack is 5V/2.4A max...So I have to use a step up converter I bought one on Amazon: https://www.amazon.de/tinxi%C2%AE-Wandler-Step-up...
To get to the 14.85V stated on the outlet of the power supply. The max Amps on the power pack is only 2.4A the power supply is stating 3A.
So I put everything together and connect it to the MacBook Air. It seems to work. The charging symbol pops up in the battery screen. But it is actually not loading. The unloading process is much slower but it is not loading! In addition to that, the MacBook sometimes recognize the loader and sometimes not?
Do you have any advice on what I am doing wrong? Are the 2,4A from the battery pack to low?
After checking I guess the 0.9 mAh per USB are the problem right?