Milwaukee Dewalt Makita Battery repair compilation Best of 2025

Описание: This video compiles the most popular powertool battery repair videos from 2025.
The batteries repaired include Dewalt XR 18v Makita 18v LXT Milwaukee M12 and M18 batteries.
Milwaukee M18 Battery Triage – Diagnosing 8 Dead Batteries from Dublin! (No Repair, Just Troubleshooting)
I received a surprise package from Dublin containing 8 non-functional Milwaukee M18 batteries:
🔋 3 x 5Ah
🔋 2 x 4Ah
🔋 2 x 9Ah
🔋 1 x 12Ah

None of these batteries are working, so I take you through my step-by-step troubleshooting process to diagnose the issues. This is a triage session only – no repairs, just testing and fault-finding!

What You’ll Learn in This Video:
✅ How to test Milwaukee M18 batteries with a multimeter
✅ Common Milwaukee battery failures and how to spot them
✅ Checking for cell imbalance, bad PCB boards, and voltage recovery potential
✅ Step-by-step Milwaukee battery diagnostics before repair

If you have a Milwaukee M18 battery that won’t charge or power a tool, this video will help you understand what’s wrong before attempting a fix!
I diagnose and repair a Milwaukee M12 6Ah battery that’s not working properly due to a cell imbalance issue.

After opening the pack and checking the 18650 Samsung 30Q cells, I found that three banks of two cells each were reading significantly different voltages—a clear sign of imbalance. This is a common cause of power issues and charging failures in lithium-ion tool batteries.

What You’ll Learn:
✅ How to safely open and inspect a Milwaukee M12 battery
✅ How to identify cell imbalance with a multimeter
✅ What causes cell imbalance and how it affects performance
✅ How to correct the imbalance using proper tools and techniques
✅ Tips to extend the life of your lithium-ion tool batteries
imax B6 https://amzn.to/4jYbEs7

Whether you're a DIY repair enthusiast or just want to save a battery from the bin, this guide shows you how to restore performance without replacing the entire pack.
In this repair session, I take on five 18V tool batteries with a variety of faults and failures:
🔧 3x DeWalt 5Ah
🔧 1x DeWalt 4Ah
🔧 1x budget clone battery

Here’s how it went down:
🔩 The clone battery was a disaster—all the wires were disconnected, a true testament to its terrible build quality.
🔥 One DeWalt 5Ah had bent pins and a partially melted top—I reshaped the slot with a Dremel and straightened the terminals.
🔋 The other three packs required cell replacements, using reclaimed cells that I charged and balanced using the XTAR VC8 Plus charger before installation.
to purchase this charger
https://amzn.to/3Z8Rcwi

This video gives you a real-world look at common tool battery issues, how to spot poor construction, and how to safely carry out DIY lithium-ion battery repairs.

What You’ll Learn:
✅ Cell removal and replacement
✅ Using XTAR VC8 Plus to charge and prep reclaimed cells https://amzn.to/3Z8Rcwi
✅ Fixing physical damage to battery housings and connectors
✅ Spotting clone battery issues vs genuine builds

I tested this 6ah 18v lxt knock off Makita battery with the load tester and the results were Surprising but not in a good way.
6 Red Flags That Scream Your Makita 18V Battery Is FAKE! Are you really using a genuine Makita LXT 18V 6Ah battery? In this video, I expose 2 counterfeit Makita batteries and break down the 6 dead giveaways that your battery might be a fake – and possibly dangerous! 😱


✅ What you'll learn in this video:
1️⃣ The too-good-to-be-true price trap
2️⃣ Missing white anti-tamper tab – a dead giveaway
3️⃣ Why weight matters – real Makita batteries are solid
4️⃣ The cheap circuit board hiding inside
5️⃣ Thin nickel strips and sloppy spot welding
6️⃣ Unbranded, untraceable mystery cells

🛠️ Whether you're a DIYer or a pro tradesperson, this info can save your tools — and maybe even your health. Fake batteries can overheat, catch fire, and damage your Makita gear.

📦 Don't get scammed! Watch before you buy.
I am diagnosing and attempting to repair 8 faulty Makita 18V LXT batteries. I’ll walk you through the voltage testing process, discuss common repair techniques, and show you what works — and what doesn’t.

But here’s the bigger question: When is it worth trying to fix a battery, and when should you move on? Picking your battles in battery repair is a skill that every DIYer and tool enthusiast has to learn.

👉 In this video:
✅ How to test Makita 18V batteries with a multimeter
✅ Techniques for attempting repairs
✅ Signs that a battery is beyond saving
✅ My honest take on when to repair vs. replace
Lipro B6 Charger https://amzn.to/44aCeav
If you’ve ever wondered what goes on inside a battery repair attempt — or want to learn how to diagnose your own power tool batteries — this is the video for you.


⚠️ Disclaimer: Battery troubleshooting and repair should be done with caution. This video is for educational purposes only—proceed at your own risk.

🔔 Subscribe for more Milwaukee M18 battery repairs, diagnostics, and DIY troubleshooting tips!