The Vintage Collective - No more battery problems for the Pentax Spotmatic SP The Maxell 394 silver oxide battery os a replacement for the discountinued PX-400 (RM400R) battery 🔋 🎞 Maxell SR936SW (
Exell MRB400 1.35V Zinc Air Battery Z400PX, E400N, EPX400, H-B, KX400, MRB400, PM400R, PX400, RM400, T400N, V400PX - EveryMarket
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Wein Cell PX400 Non-Mercury Battery 1.35V Pentax Spotmatic SP500 SP1000 UK Stock 750062011123 | eBay
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1.35V PX-400 Film Camera Battery ADAPTER + BATTERY (Replace Mercury Cell) Fits MR-42 RM400, MRB400, H-B, For Pentax Spotmatic: Amazon.co.uk: Electronics & Photo
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