“The world is shifting away from fossil fuels and will one day become fully electric.In the present world ,Lithium-ion is the most promising chemistry of all batteries. Most of the battery packs used in Laptops,RC Toys, Drones, Medical devices, Power tools, e-bikes and electric cars (EV) are based on the 18650.It is one of the most mature Li-ion formats available, is produced in high volume and enjoys a low cost per Wh.
The 18650 (18mm diameter and 65mm length ) battery is a size classification of lithium-ion batteries.It is the same shape, but a bit larger than a AA battery. AA batteries by comparison are sometimes called 14500 batteries, because they have a 14mm diameter and 50mm height.
Earlier I have made a Solar Power Generator which is working really nice till now.But the main problem is its weight, it is really heavy.The main weight of the Solar Generator is due to the heavy lead acid battery inside it.So I decided to make a light and compact 18650 Li Ion Battery Pack.
In this Instructable, I will show you, how to make a 18650 battery pack for applications like : Power Bank, Solar Generator, e-Bike, Power wall etc.The fundamental is very simple : Just to combined the number of 18650 cells in series and parallel to make a bigger pack and finally to ensue safety adding a BMS to it.
At the end of this project, I made a custom 3D printed enclosure for the battery pack.
Disclaimer:I cannot be held responsible for any loss of property, damage, or loss of life if it comes to that. This tutorial was written for those who have knowledge on rechargeable lithium ion technology.Please do not attempt this if you are novice. Stay Safe.”