How to Make a 3S Li-ion Battery Pack with BMS | DIY 12V Battery Build Step-by-Step

Описание: In this video, I show you exactly how to build a professional-grade 3S Lithium-Ion battery pack using 18650 cells and a BMS (Battery Management System). This 12.6V pack is perfect for drones, RC cars, portable speakers, or DIY electronics projects.
​I will guide you through the entire process, from arranging the cells to soldering the BMS correctly to ensure your battery is safe and long-lasting.
​🛠️ Parts & Tools Used:
​3x 18650 Li-ion Cells (High capacity recommended)
​3S Li-ion BMS Module (Protection Board)
​Nickel Strips
​Battery Holder / Spacers
​T Connector (or DC Jack)
​Soldering Iron & Solder Wire
​Spot Welder (optional, can solder if careful)
​Kapton Tape / Heat Shrink Tube

​⏱️ Timestamps:
0:00 - Intro
0:45 - Components Required
1:01 - BMS Wiring
3:56 - Voltage Check
4:10 - Heat Shrink
4:28 - Output Voltage
4:40 - outro

​⚠️ Safety Warning:
Lithium-ion batteries store a lot of energy and can be dangerous if mishandled. Always double-check your polarity, use a BMS to prevent overcharging/short circuits, and never overheat the cells while soldering. Proceed with caution and at your own risk.

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