How will i boost to charge my iphone 6s

Thread Starter

tonystark96

Joined Oct 19, 2017
7
I tried to make a powerbank, i used a lithium ion battery (Panasonic NCR18650B 3.7V). I increased to 5.10v with mt3608 dc step up (https://www.addicore.com/MT3608-Boost-Converter-p/ad300.htm) I give 2v 2v to usb data pins but in 10 minutes, my iphone's charge is from 57% to 60%. Otherwise with my powerbank it takes 3 minutes. My diy powerbank is very slow why it is like that?
 

ian field

Joined Oct 27, 2012
6,543
I tried to make a powerbank, i used a lithium ion battery (Panasonic NCR18650B 3.7V). I increased to 5.10v with mt3608 dc step up (https://www.addicore.com/MT3608-Boost-Converter-p/ad300.htm) I give 2v 2v to usb data pins but in 10 minutes, my iphone's charge is from 57% to 60%. Otherwise with my powerbank it takes 3 minutes. My diy powerbank is very slow why it is like that?
Here in the UK; the £ Land store has a 1200mAh power bank for UK£1 - I seriously wouldn't bother building one.

The PCB inside has a SOIC8 chip that does charge management and boosting to 5V. Right now I have plans to buy a few and graft the PCBs into various projects.
 

Thread Starter

tonystark96

Joined Oct 19, 2017
7
Here in the UK; the £ Land store has a 1200mAh power bank for UK£1 - I seriously wouldn't bother building one.

The PCB inside has a SOIC8 chip that does charge management and boosting to 5V. Right now I have plans to buy a few and graft the PCBs into various projects.
it makes sense but this is school project, we must learn to make this circuit.
 
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