Original Project by Steve Willson Kujur from Instructables.
License: Attribution-NonCommercial-ShareAlike
Hey! everyone My name is Steve .
Today i'm going to show you How to make a 3S 18650 Battery Pack
3S batteries are widely used in many application such as Bluetooth Speaker , Rc Cars & and many things you can think of .
it can easily power any 12v application with no issues
Let's Get Started
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Steps
1
Features
Features
Supply Output
• Nominal voltage - 11.1 v
• Maximum voltage - 12.6 v
• low voltage - 9 v
Safety Features
• Over-Discharge Protection
• Over-Charge Protection
• Short-Circuit Protection
2
Stuff I Used
3
The Things You Need to Know
The Things You Need to Know
• It is necessary to use same capacity battery little up and down will be be ok ( example - 1750 mah , 1740 mah , 1730 mah )
• And it is very necessary to keep all the battery at same voltage " I found a best way to do this by connecting all the batteries in parallel and leave it over night "
• Be careful while doing this don't reverse the polarity
4
Attaching the BMS & Battery Holder
Attaching the BMS & Battery Holder
Attaching the BMS & Battery Holder
• Put 3 battery on the 18650 Battery Holder
• Use a double sided tape to stick BMS on the batteries
5
Connection
Connection
Connection
Connection
Connection
+1
• Connect all the battery as shown in the schematic
6
How to Charge Them
• you can just use a 12.6 v lithium battery charger to charge this battery
• By the way i'll make a lithium battery charger later on so stay tuned for that
Conclusion
• Now check the output voltage
You Just Made It
Thank you for visiting my Instructables
Stay tuned for next Projects
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