Introduction: How to Make a Smartphone Battery Power Bank ⚡

Picture of How to Make a Smartphone Battery Power Bank ⚡

↪ Hello, it is SuperTech and today I am going to show you how to make a smartphone power bank from an old laptop !

Step 1: Watch the Video !

↪ The video show you all the steps to make the project with English subtitles.

Step 2: Order Your Parts !

Material List

↪ 1 external battery box: (

↪ 4 batteries (from old laptop or

Step 3: Follow the Diagram !

Picture of Follow the Diagram !

↪ Follow this diagram to avoid making mistakes.

Step 4: Ask Me Questions !

↪ If you have questions or have a problem, let me help you.

↪ Join my ⚡ YouTube channel with videos every week ! (


PospaPunk (author)2018-01-13

How much current can you draw from this case? Some of them are set to only 0.5 Ampers. Also is there some kind of undercurrent protection? (Some of them has auto-shutdown when there's low current draw. It is not suitable for powerinv low power devices like Arduino Nano). But anyway - good job!

Swansong (author)2018-01-12

Thanks for sharing :)

About This Instructable



Bio: Hello, I am a French YouTuber who shows you every week how to make an DIY project !
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