Ultimate 40AH Power Bank for Camping | 18650 | MakerMan

Published at : 23 Dec 2025

new 18650 related video - https://youtu.be/MeOZUStC238

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In this video, I made a DIY Power Bank with 40AH 18650 cells from 18650 salvaged from old laptop batteries. This Power Bank charge laptop, phone, other power bank and even run sewing machine. It have 12volt outlet and torch light for camping. this power bank is connected with the solar setup, so its charged and adds more capacity to my solar system setup.

I used my previously made 40cell Charging & Capacity Testing Station to know the capacity of the cells for repacking the cells into a proper battery packs.

40 cell Charging station for 18650
https://youtu.be/8sAUgDQPu1g

40cell Capacity Testing Station for 18650
https://youtu.be/NR6iTFHEhfo

12v 70Ah Battery pack
https://youtu.be/m5Bei9Xbab4

Many more 18650 related videos to come.

I was contacted by JLCPCB a few months ago about their interest in sponsoring some of my projects and providing me with pcbs to speed up my projects. So I decided to restart my 18650 battery pack build project that I've always wanted to do for a ago time but got busy.

Sponsored by JLCPCB
PCBs from $0 (Free Setup, Free Stencil): https://jlcpcb.com/RHS


For business enquiry email me - MakerManChannel@gmail.com




WARNING: Do everything at your own risk, lithium batteries can catch fire or explode if mishandled. This power bank requires a more than a basic understanding of electronic to complete.




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music used from youtube music library
Average - Patrick Patrikios

Forget Me Not - Patrick Patrikios

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