Uploaded May 2025 | Updated September 2026, 2 weeks ago
In this video, I show you how to safely replace the 18650 lithium-ion cells in a Milwaukee power tool battery pack. Whether your battery has lost capacity or stopped working entirely, swapping the old cells for new ones can bring it back to life — and save you money!
👉 What You'll Learn:
How to safely open a Milwaukee battery pack
Identifying and removing old cells
Choosing and installing new, compatible 18650 cells
Reconnecting the BMS (Battery Management System)
Safety tips to avoid damage or injury
⚠️ Warning: Working with lithium batteries can be dangerous. Only attempt this repair if you are familiar with battery safety and electronics. Do not short-circuit the cells, and always wear safety gear.
📦 Tools & Materials Used:
New 18650 cells (Samsung, LG, or Sony recommended,Parkside)
Soldering iron or spot welder
Multimeter
Insulation tape / heat shrink
Safety goggles and gloves
👍 Don't forget to Like, Subscribe, and Comment if this helped you out!
In this video, I show you how to safely replace the 18650 lithium-ion cells in a Milwaukee power tool battery pack. Whether your battery has lost capacity or stopped working entirely, swapping the old cells for new ones can bring it back to life — and save you money!
👉 What You'll Learn:
How to safely open a Milwaukee battery pack
Identifying and removing old cells
Choosing and installing new, compatible 18650 cells
Reconnecting the BMS (Battery Management System)
Safety tips to avoid damage or injury
⚠️ Warning: Working with lithium batteries can be dangerous. Only attempt this repair if you are familiar with battery safety and electronics. Do not short-circuit the cells, and always wear safety gear.
📦 Tools & Materials Used:
New 18650 cells (Samsung, LG, or Sony recommended,Parkside)
Soldering iron or spot welder
Multimeter
Insulation tape / heat shrink
Safety goggles and gloves
👍 Don't forget to Like, Subscribe, and Comment if this helped you out!
