Uploaded April 2024 | Updated September 2026, 3 hours ago

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Find out how to replace the batteries in a vintage Minolta Hi-Matic F compact film camera.

It is no longer possible to buy the original RM-640/E-640 Mercury batteries for this camera. Modern LR44 batteries can be used instead, but you need to carry out this simple little hack in order to make them fit in the camera.

#photography #filmphotography #minolta

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00:00 Intro
01:14 What you'll need
01:24 Removing the original batteries
01:44 Creating a holder for the batteries
03:06 Stacking the batteries
04:15 Completing the circuit with aluminium foil
04:48 Testing with the battery check button
05:02 Outro