Battery Corrosion Removal - Sony MZ-R900 Portable Minidisc Recorder/Player

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Amazon links. As an Amazon Associate I earn from qualifying purchases.
IPA Isopropyl Alcohol: https://amzn.to/3K9BvNg
Fibre Glass Tipped Pen (not my exact e, but similar): https://amzn.to/4bNAxCl
WD-40 Contact Cleaner: https://amzn.to/3yBPIQs
Gumstic Batteries
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Vapex (orange): https://amzn.to/3QRb9TX

Chapters
00:00 Intro
00:37 Battery Cover Removal
04:54 Case removal
06:24 Corrosion Removal
11:50 Contact Cleaner
13:16 Battery Contact Arm
15:40 Battery Door Plastic Clip
17:09 Reassembly
19:51 Testing