Repair Dremel MiniMite model 750

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October 15, 2025
It works again!
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October 15, 2025
Snap base off battery pack by prying with a screwdriver
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October 15, 2025
Note orientation of battery +/- and how they are paired
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October 15, 2025
Top has tiny +/- symbols not visible in photo. The “small” bumps on batteries are the + terminal. Orientation here is key
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October 15, 2025
Batteries, I pried the foam pad off the base
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October 15, 2025
Showing how batteries are soldered together
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October 15, 2025
I bought these rechargeable AA cells with solder tabs: a.co/d/cwYKsfJ
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October 15, 2025
Roughing up solder tabs prior to soldering
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October 15, 2025
Soldering tabs
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October 15, 2025
Reassemble paying close attention to +/- locations being same as old batteries

Comments

4 15 October, 04:28

Ben M Author
My dremel's battery stopped working 🪫and the battery packs are no longer sold so I rebuilt it 🔋 I have had this dremel forever, it's not my main dremel which is corded but it's nice to take to the hobby shop build nights. I've had it for many years, every few years I'd buy a new battery pack for it when it would stop holding a charge but I can no longer find them anywhere so I rebuilt it.

15 October, 04:32

Ben M Author
Solder tab AA cells: a.co/d/4TDQJ5S

15 October, 04:44

gorby
Nice work. I always try to repair rather than replace when I can. 👍

15 October, 06:50

Album info

My dremel's battery stopped working and the battery packs are no longer sold so I rebuilt it.

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