Uploaded May 2025 | Updated September 2026, 2 weeks ago
In this video, I show you how to convert a digital multimeter to run on a rechargeable Li-ion battery from a vape pen!
Tired of constantly replacing 9V batteries? This simple DIY upgrade lets you power your multimeter with a vape battery, charge it via USB-C, and boost the voltage to 9V using a DC-DC converter.
🔧 What you’ll see in this video:
Disassembling the multimeter
Removing the old 9V battery
Extracting a Li-ion battery from a vape
Adding a USB-C charging port
Installing a boost converter for 9V output
Final assembly and testing
⚠️ Disclaimer: Be careful when working with batteries and electronics. Always take proper safety precautions!
In this video, I show you how to convert a digital multimeter to run on a rechargeable Li-ion battery from a vape pen!
Tired of constantly replacing 9V batteries? This simple DIY upgrade lets you power your multimeter with a vape battery, charge it via USB-C, and boost the voltage to 9V using a DC-DC converter.
🔧 What you’ll see in this video:
Disassembling the multimeter
Removing the old 9V battery
Extracting a Li-ion battery from a vape
Adding a USB-C charging port
Installing a boost converter for 9V output
Final assembly and testing
⚠️ Disclaimer: Be careful when working with batteries and electronics. Always take proper safety precautions!
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