Reverse engineered and 3D printed a replacement battery pack for my Pentax 645 because the original was pretty busted up. This is my first prototype so it's a little rough, but it
Pentax ME: a helpful guide with photos – Fábio Ardito
Pentax ME K1000 Olympus Nikon Minolta Canon Etc Cameras 2x Batteries 1.5 Volt | eBay
Asahi Pentax ME-F – John's Cameras. A collection of interesting and old cameras.
Original Replacement Camera Battery D-Li109 For Pentax K30 K50 K70 K500 KR KS2 KS1 K-30 K-50 K-70 K-500 K-R K-S2 K-S1 1050mAh
Amazon.com : Pentax ME Super 35mm SLR Camera Package : Camera And Photography Products : Electronics