{"title":"PX625 Batteries \u0026 Alternatives","description":"\u003cp\u003eMany classic cameras require the old PX625 mercury battery, which is now banned. Regular alkaline batteries provide incorrect voltages and ruin the light metering. Here you’ll find our \"Made in Germany\" solutions that give your camera the correct and stable voltage again.\u003c\/p\u003e\n\u003cp\u003eWe offer three options for the perfect replacement:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAdapter with O-ring:\u003c\/b\u003e The simple and effective solution for cameras (e.g., Rollei 35) that draw power from the top and bottom. Combined with a zinc-air battery, it provides a stable 1.35V.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAdapter made of conductive plastic:\u003c\/b\u003e The solution for cameras (e.g., Leica CL) that need a side contact on the battery edge. Also delivers 1.35V with a zinc-air battery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRechargeable V80H batteries:\u003c\/b\u003e The sustainable battery solution (1.2V) with a matching USB-C charger as a direct replacement for the PX625.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"px-625-adapter-uni","title":"PX625 MR9 Battery Adapter Set Universal for Analog Cameras","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrect exposure values thanks to constant 1.35V.\u003c\/strong\u003e Zinc-air batteries drop to ~1.35V under the minimal load of a CdS meter – the voltage of the original PX625 mercury cell. Flat discharge curve, no drift.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversally compatible thanks to conductive plastic.\u003c\/strong\u003e Works equally well in cameras with side, bottom, and top contacts. No guessing which adapter fits your camera.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAffordable batteries, available everywhere.\u003c\/strong\u003e Hearing aid batteries type 675 are available at every pharmacy, drugstore, and online – in 6-packs for under 3 EUR.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady to use immediately with 2 adapters + 6 batteries.\u003c\/strong\u003e Unpack the complete set, insert, shoot.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy zinc-air instead of alkaline or silver oxide?\u003c\/h3\u003e\n\u003cp\u003eThe problem with LR44 or SR44: Alkaline delivers 1.5V, silver oxide even 1.55V. In cameras with CdS light meters (Olympus OM-1, Minolta SRT, Canon FTb, Rollei 35), this leads to up to 2 stops underexposure. The camera thinks it’s brighter than it actually is.\u003c\/p\u003e\n\u003cp\u003eZinc-air batteries (type 675) start at 1.45V and drop to ~1.35V under the minimal load of a CdS meter – the voltage of the original PX625 mercury cell. The discharge curve is flat, just like mercury. No voltage fluctuations, no drift over the usage period.\u003c\/p\u003e\n\u003cp\u003eThere are also zinc-air cells made directly in the PX625 format (e.g., Wein-Cells) – technically the same chemistry as hearing aid batteries, just in a different casing. The advantage of our solution: type 675 hearing aid batteries are available everywhere – pharmacy, drugstore, gas station – and cost a fraction per piece.\u003c\/p\u003e\n\n\u003ch3\u003eScope of delivery\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e 2x PX625 adapters, 1x battery pack (type 675)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet:\u003c\/strong\u003e Standard + 1x universal light seal set including mirror damper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete set:\u003c\/strong\u003e Set + 1x extra battery pack (type 675)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Conductive technical plastic\u003c\/li\u003e\n\u003cli\u003eCompatibility: Replaces PX625 \/ MR-9 \/ PX13\u003c\/li\u003e\n\u003cli\u003eBattery system: Enables use of PR44 \/ 675 zinc-air (1.4V)\u003c\/li\u003e\n\u003cli\u003eFit: Universal (side and bottom contact)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003ePX625 mercury batteries were the standard in many analog cameras from the 70s to 90s. Since the EU ban, there is no direct replacement. Alkaline batteries (LR44) deliver too high and fluctuating voltage. Silver oxide cells (SR44) are stable but also too high.\u003c\/p\u003e\n\u003cp\u003eThis adapter uses common hearing aid batteries type 675 – available at every pharmacy and drugstore, in 6-packs for under 3 EUR. The adapters are made of conductive plastic and therefore work in almost all cameras: regardless of whether the battery contact is on top, bottom, or side.\u003c\/p\u003e\n\n\u003ch3\u003eTypical concerns – and our answers\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003e“Zinc-air dries out – they only last a few weeks”\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTrue: After removing the protective foil, the cell starts working. In a hearing aid (constant high current consumption), a 675 cell lasts 5–12 days. In a camera, the consumption is orders of magnitude lower – a CdS light meter draws microamps, and only when actively measuring. This makes the batteries last 2–3 months. At a unit price under 0.50 EUR, that’s an acceptable tradeoff.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e“1.4V is not 1.35V – will my light meter then measure incorrectly?”\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1.4V is the nominal voltage under standard load. Your camera’s CdS light meter draws so little current that the voltage drops to ~1.35V. The deviation from the original is at most 0.05V – roughly 1\/3 stop. Negative film tolerates 3–5 stops of overexposure without visible quality loss. With slide film, 1\/3 EV is hardly noticeable in practice.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e“Can moisture from the zinc-air battery damage my camera?”\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eZinc-air cells use atmospheric oxygen as the cathode and contain a small amount of electrolyte. The theoretical possibility of moisture release exists but is irrelevant in practice when used in cameras. Hearing aids sit directly in the ear canal and are much more sensitive to moisture than a camera battery compartment. Thousands of photographers have used this solution for years without problems.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e“Why not just use an LR44?”\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou can – but not without consequences. 1.5V alkaline on a CdS meter calibrated for 1.35V results in systematic underexposure. In some cameras, up to 2 stops. Also, alkaline voltage fluctuates strongly over its lifetime (1.6V fresh, 1.2V empty). This makes measurement results unpredictable. Silver oxide (SR44, 1.55V) is more voltage stable but still too high. The zinc-air adapter is the only passive solution that delivers the correct voltage.\u003c\/p\u003e\n\n\u003ch3\u003ePractical tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActivation:\u003c\/strong\u003e Wait 1–2 minutes after removing the protective foil before inserting the battery. The cell needs oxygen to activate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Unopened batteries last 2–3 years. Only remove the foil when you actually need the battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery check:\u003c\/strong\u003e Some cameras (e.g., Olympus OM-1, Minolta SRT) have a battery test function calibrated exactly for 1.35V. This sometimes shows “weak” with zinc-air even though the battery is full. This is normal – the light meter still works correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReordering:\u003c\/strong\u003e Type 675 batteries are available at every pharmacy, drugstore, and online. You’re not tied to a specialty supplier.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWant a rechargeable solution?\u003c\/h3\u003e\n\u003cp\u003eIf you don’t want to change disposable batteries: We developed the \u003ca href=\"\/en\/products\/ausgeknipst-ersatz-akku-ladegerat-fur-px625-mr9-varta-v80h-batterie-1-35v\"\u003ePX625 rechargeable battery with USB-C charger (V80H)\u003c\/a\u003e. A NiMH battery with 1.25–1.30V operating voltage, rechargeable via USB-C. Buy once, use for years.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMore about voltage and exposure metering?\u003c\/strong\u003e\u003cbr\u003e\nIn our \u003ca href=\"\/en\/blogs\/fragen-und-antworten\/batterien-und-batterie-adapter-fur-analoge-kameras-probleme-und-losungen-faq\"\u003eFAQ article on batteries and adapters for analog cameras\u003c\/a\u003e, we explain all alternatives in detail – including voltage comparison and when which solution is right.\u003c\/p\u003e\n\n\u003c!-- BATTERY_COMPAT_BLOCK_START --\u003e\n\u003cdiv class=\"battery-compatibility-block\" style=\"margin-top: 2em; padding-top: 1.5em; border-top: 1px solid #e0e0e0; font-size: 0.95em;\"\u003e\n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cp\u003eFits various cameras, including:\u003c\/p\u003e\n  \u003cul style=\"margin-bottom: 1.5em;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCanon:\u003c\/strong\u003e Canonet series (QL17, QL19, 28, G-III), F series (F-1, FT, FTb, FX), Demi \/ Dial series \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#canon\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNikon:\u003c\/strong\u003e F series (F, F Photomic, FTN), Nikkormat \/ Nikomat series (FT, FTN) \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#nikon\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMinolta:\u003c\/strong\u003e SR-T series (100-303, MC, SC, Super), SR series (1, 7, 100-505), Hi-Matic series (7, 7S, 9, 11) \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#minolta\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOlympus:\u003c\/strong\u003e OM-1 series (OM-1, MD, N), 35 series (RC, RD, SP, DC), Pen series (F, FT, D2, EED) \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#olympus\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePentax:\u003c\/strong\u003e K series (K2, KM, KX), Spotmatic F, H series (H1a, H3v) \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#pentax\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRollei:\u003c\/strong\u003e 35 series (35, 35S, 35T, Classic), SL35 series (SL35, SL35M, SL350), XF35 \/ A26 \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#rollei\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\u003cstrong\u003eNot sure if the battery fits your camera?\u003c\/strong\u003e\u003cbr\u003e\n  \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eHere is a complete list of all cameras compatible with the PX625 battery type.\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- BATTERY_COMPAT_BLOCK_END --\u003e","brand":"Ausgeknipst","offers":[{"title":"Standard: Adapter + Batteries","offer_id":51112791671124,"sku":"1191","price":22.95,"currency_code":"EUR","in_stock":true},{"title":"Set: Adapter + Batteries + Light Seals","offer_id":54014856200532,"sku":"2148","price":39.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/3649\/4676\/files\/content-2xpack-batterien_1.png?v=1772530522"},{"product_id":"ausgeknipst-batteriefachdeckel-mit-integeriertem-px625-adapter-6x-battery-fur-rollei-xf-35_b0crf6vpf2_","title":"Battery cover with battery adapter for Rollei XF 35","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePX625 mercury batteries empty?\u003c\/strong\u003e The originals are banned, and modern 1.5V alkaline alternatives often cause exposure errors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoose contact with alternatives?\u003c\/strong\u003e 675 zinc-air cells provide the correct voltage (about 1.4V) but are mechanically too small and slip around in the compartment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolution:\u003c\/strong\u003e Our cover mechanically secures the 675 battery and ensures a reliable contact without any DIY fixes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eScope of delivery\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOption \"Batteries \u0026 Adapter\":\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1x battery compartment cover (adapter design)\u003c\/li\u003e\n\u003cli\u003e6x batteries type 675 (zinc-air, 1.4V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOption \"Batteries, Adapter + Slip-On Lens Cap\":\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1x battery compartment cover (adapter design)\u003c\/li\u003e\n\u003cli\u003e6x batteries type 675 (zinc-air, 1.4V)\u003c\/li\u003e\n\u003cli\u003e1x slip-on lens cap for Rollei XF 35\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: technical plastic (PLA+)\u003c\/li\u003e\n\u003cli\u003eColor: black\u003c\/li\u003e\n\u003cli\u003eSuitable battery: zinc-air 675 (not included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Rollei XF 35 was originally designed for 1.35V mercury batteries (PX625). Since these are no longer available, 1.4V zinc-air batteries (type 675 from the drugstore) offer the best replacement for accurate exposure metering. The problem: they are significantly smaller than the original.\u003c\/p\u003e\n\u003cp\u003eWe specially designed this battery compartment cover to precisely center the smaller 675 cell and apply the necessary pressure. You save yourself expensive special adapters or unreliable DIY fixes with aluminum foil. Just put the cover on, insert the battery, and shoot.\u003c\/p\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRollei XF 35\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ausgeknipst","offers":[{"title":"Batteries \u0026 Adapters","offer_id":51112783315284,"sku":"1128","price":25.95,"currency_code":"EUR","in_stock":true},{"title":"Batteries, Adapters + Slip-On Lens Caps","offer_id":54016350126420,"sku":"2157","price":39.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/3649\/4676\/products\/71m5muQULTL.jpg?v=1704471376"},{"product_id":"ausgeknipst-ersatz-akku-ladegerat-fur-px625-mr9-varta-v80h-batterie-1-35v","title":"PX625 rechargeable battery with USB-C charger","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise exposure with 1.25–1.30V:\u003c\/strong\u003e Voltage close to the original — safe for negative film. No misexposures caused by too high alkaline voltage in CdS light meters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne battery for years instead of disposables:\u003c\/strong\u003e The V80H is rechargeable via USB-C. No more expensive zinc-air cells that dry out after weeks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady charging station instead of tinkering:\u003c\/strong\u003e Own PCB board, USB-C connection, housing with spring contacts. Plug in, charge, done.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\u003cdiv style=\"background:#f0f9ff;border:1px solid #bae6fd;border-radius:8px;padding:16px 20px;margin:20px 0;\"\u003e\n    \u003cp style=\"margin:0 0 8px;font-weight:600;\"\u003eBattery compartment in the film chamber? No problem.\u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:14px;\"\u003eIn cameras like the \u003cstrong\u003eRollei 35\u003c\/strong\u003e or \u003cstrong\u003eLeica CL\u003c\/strong\u003e, the battery compartment is inside the film chamber — every battery change means: remove the film. With the Pro Pack (2x V80H) you simply change the battery with every film change. No extra opening, no risk to the film.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eScope of delivery\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e 1x USB-C charger + 1x V80H battery (PX625 compatible)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro Pack:\u003c\/strong\u003e 1x USB-C charger + 2x V80H batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBattery: Varta V80H (Low Self-Discharge NiMH, 80 mAh)\u003c\/li\u003e\n\u003cli\u003eNominal voltage: 1.2 V (according to manufacturer)\u003c\/li\u003e\n\u003cli\u003eOperating voltage (plateau): 1.25 – 1.30 V\u003c\/li\u003e\n\u003cli\u003eCapacity: 80 mAh — sufficient for weeks at microampere consumption of a CdS meter\u003c\/li\u003e\n\u003cli\u003eCharging method: Gentle slow charging (C\/7) via USB-C\u003c\/li\u003e\n\u003cli\u003eCharging time: approx. 8 hours (overnight charging recommended)\u003c\/li\u003e\n\u003cli\u003eCharger material: Technical plastic\u003c\/li\u003e\n\u003cli\u003eConnection: USB-C (PD compatible)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eMany classic analog cameras — Rollei 35, Leica CL, Olympus OM-1, Canon F-1, Minolta SRT — were designed for the 1.35V mercury battery PX625. Since the production ban, there has been no perfect replacement solution. The most common alternative (1.5V alkaline) delivers too high a voltage, which especially leads to misexposures with CdS light meters.\u003c\/p\u003e\n\u003cp\u003eThe Varta V80H solves this problem with an operating voltage of 1.25–1.30V, which is much closer to the original. It is not an ordinary NiMH battery: The V80H comes from Varta's industrial \"Robust\" series (built for server RTC and medical technology) and uses LSD-NiMH technology (Low Self-Discharge) — the self-discharge is comparable to the Eneloop series.\u003c\/p\u003e\n\u003cp\u003eThe idea to use a V80H as a PX625 replacement comes from \u003ca href=\"https:\/\/www.troeszter.net\/Download\/PX625Batterie.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTroeszter.net\u003c\/a\u003e. Building on this, we developed an independent product: own PCB board, USB-C instead of lab power supply, housing made of technical plastic with spring contacts.\u003c\/p\u003e\n\n\u003ch3\u003eCommon concerns — and our answer\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003e“1.2V is too low — the original had 1.35V”\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe nominal voltage on the datasheet is the average over the entire discharge cycle. Our measurements in a Rollei 35 show: freshly charged, the V80H delivers 1.30–1.32V. After two weeks still 1.27–1.28V. The deviation of 0.05–0.08V is within the tolerance range for negative film.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e“Only 80 mAh capacity — that’s not enough”\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA CdS light meter consumes microamperes. At this current consumption, the stable voltage plateau of the V80H lasts not hours but weeks. 80 mAh is little for AA batteries — for a camera button cell it is sufficient.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e“NiMH discharges by itself anyway”\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStandard NiMH loses 10–20% charge in the first days. The V80H is not standard NiMH. As an LSD cell (Low Self-Discharge) from the Varta \"Robust\" series, it still holds about 80% capacity after one year at room temperature — comparable to the Eneloop series.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f8f8f8;border:1px solid #e0e0e0;border-radius:8px;padding:16px 20px;margin:20px 0;\"\u003e\n    \u003cp style=\"margin:0 0 8px;font-weight:600;\"\u003ePractical notes\u003c\/p\u003e\n    \u003cul style=\"margin:0;padding-left:20px;font-size:14px;\"\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBattery check:\u003c\/strong\u003e Many cameras (OM-1, Minolta SRT) have a battery check calibrated to 1.35V. The V80H shows \"empty\" there — although the light meter works perfectly. This is normal.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCold:\u003c\/strong\u003e Below 5 degrees Celsius NiMH becomes unreliable. For winter shots in frost, a zinc-air cell or alkaline + ISO correction is the better choice.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAfter charging:\u003c\/strong\u003e Let the V80H rest for 1–2 hours after charging before putting it in the camera. The resting voltage stabilizes during this time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePower bank:\u003c\/strong\u003e Some power banks switch off at low current consumption. The charger requires a USB source that does not switch off small loads (power supply or laptop port).\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#f0f9ff;border:1px solid #bae6fd;border-radius:8px;padding:16px 20px;margin:20px 0;\"\u003e\n    \u003cp style=\"margin:0 0 8px;font-weight:600;\"\u003eDetailed comparison of all PX625 alternatives\u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:14px;\"\u003eWe wrote a technical guide comparing all options: alkaline, zinc-air, Schottky adapter, V80H, and DIY solutions — with measurement data, practical tests, and community feedback.\u003c\/p\u003e\n    \u003cp style=\"margin:8px 0 0;\"\u003e\u003ca href=\"https:\/\/ausgeknipst.de\/blogs\/guide\/px625-batterie-problem-alternativen-die-v80h-akku-losung-mit-usb-c-ladegerat\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"font-weight:500;\"\u003eTo the complete PX625 guide →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Please charge the V80H battery only in the charger designed for it. Charging indicator: The blue LED shows that the USB-C cable is connected. There is no full battery indicator — a full charging process takes about 8 hours.\u003c\/p\u003e\n\n\u003c!-- BATTERY_COMPAT_BLOCK_START --\u003e\n\u003cdiv class=\"battery-compatibility-block\" style=\"margin-top: 2em; padding-top: 1.5em; border-top: 1px solid #e0e0e0; font-size: 0.95em;\"\u003e\n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cp\u003eFits various cameras, including:\u003c\/p\u003e\n  \u003cul style=\"margin-bottom: 1.5em;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCanon:\u003c\/strong\u003e Canonet series (QL17, QL19, 28, G-III), F series (F-1, FT, FTb, FX), Demi \/ Dial series \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#canon\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNikon:\u003c\/strong\u003e F series (F, F Photomic, FTN), Nikkormat \/ Nikomat series (FT, FTN) \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#nikon\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMinolta:\u003c\/strong\u003e SR-T series (100-303, MC, SC, Super), SR series (1, 7, 100-505), Hi-Matic series (7, 7S, 9, 11) \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#minolta\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOlympus:\u003c\/strong\u003e OM-1 series (OM-1, MD, N), 35 series (RC, RD, SP, DC), Pen series (F, FT, D2, EED) \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#olympus\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePentax:\u003c\/strong\u003e K series (K2, KM, KX), Spotmatic F, H series (H1a, H3v) \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#pentax\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRollei:\u003c\/strong\u003e 35 series (35, 35S, 35T, Classic), SL35 series (SL35, SL35M, SL350), XF35 \/ A26 \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625#rollei\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"text-decoration:none;\"\u003e[...]\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\u003cstrong\u003eNot sure if the battery fits your camera?\u003c\/strong\u003e\u003cbr\u003e\n  \u003ca href=\"https:\/\/ausgeknipst.de\/pages\/batterie-px625\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eHere is a complete list of all cameras compatible with the PX625 battery type.\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- BATTERY_COMPAT_BLOCK_END --\u003e","brand":"Ausgeknipst","offers":[{"title":"Standard: Charger + 1x Battery","offer_id":51292647162196,"sku":"1371","price":49.95,"currency_code":"EUR","in_stock":true},{"title":"Pro Pack: Charger + 2x Battery","offer_id":52684796264788,"sku":"2278","price":54.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/3649\/4676\/files\/varta-v80h-rollei-35s.jpg?v=1739982543"},{"product_id":"batterie-typ-675-fur-px625-adapter-nachfullpack-wie-px675-mr44","title":"675 Zinc-Air Battery Refill Pack for PX625 MR9 Battery Adapter (PX675)","description":"\u003cp\u003eRefill pack with 6x 675 zinc-air batteries for our PX625 MR9 battery adapter.\u003c\/p\u003e\u003cp\u003eAccurate exposure values thanks to a constant 1.35V – the voltage of the original PX625 mercury cell. Zinc-air batteries drop to about 1.35V under the minimal load of a CdS meter. Flat discharge curve, no drift.\u003c\/p\u003e\u003cp\u003eScope of delivery: 6x 675 zinc-air batteries (without adapter).\u003c\/p\u003e","brand":"Ausgeknipst","offers":[{"title":"Default Title","offer_id":50397183213908,"sku":"2001","price":9.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/3649\/4676\/files\/camelion-675.jpg?v=1736176072"},{"product_id":"px625-batterie-adapter-fur-rollei-35-olympus-om-1-canon-f1-ftb-minolta-srt-mehr","title":"PX625 battery adapter for Rollei 35, Olympus OM-1, Canon F-1 \u0026 Minolta SRT","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOld mercury battery dead?\u003c\/strong\u003e The original PX625 (1.35V) are no longer available.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight meter inaccurate?\u003c\/strong\u003e Modern 1.5V batteries distort your camera’s readings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe solution:\u003c\/strong\u003e Our set with a rubber ring and 1.4V zinc-air battery provides the correct voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e 2x O-ring adapters, 1x battery pack (Type 675)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet:\u003c\/strong\u003e Standard + 1x universal light seal set including mirror damper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete:\u003c\/strong\u003e Set + 1x extra battery pack (Type 675)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Rubber (insulating \u0026 precise fit)\u003c\/li\u003e\n\u003cli\u003eVoltage: 1.4V (zinc-air, replaces 1.35V mercury)\u003c\/li\u003e\n\u003cli\u003eCompatibility: Only for battery compartments with contacts top and bottom\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThis set lets you power your analog camera with modern zinc-air technology. The rubber ring centers the smaller 675 battery in the PX625 battery compartment. Since zinc-air batteries have a voltage of 1.4V (very close to the original 1.35V mercury batteries), the light meter works accurately again. Conventional 1.5V alkaline batteries would cause exposure errors.\u003c\/p\u003e\n\u003cp\u003ePlease note: Zinc-air batteries are activated by removing the sticker and need air to operate. They have a lifespan of about 3–6 months after activation.\u003c\/p\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eSuitable for cameras that draw battery power from contacts at top and bottom:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLeica SL2 (tapered battery compartment)\u003c\/li\u003e\n\u003cli\u003eRollei 35, 35S, 35T\u003c\/li\u003e\n\u003cli\u003eOlympus OM-1\u003c\/li\u003e\n\u003cli\u003eCanon F1 (old), FTb, FT-QL\u003c\/li\u003e\n\u003cli\u003eMinolta SRT 100, 101, 303\u003c\/li\u003e\n\u003cli\u003eNikon F (Photomic), Nikkormat FT\u003c\/li\u003e\n\u003cli\u003ePentax Spotmatic F\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ausgeknipst","offers":[{"title":"Standard: Adapter + Batteries","offer_id":51112787870036,"sku":"1019","price":17.95,"currency_code":"EUR","in_stock":true},{"title":"Set: Adapter + Light Seal","offer_id":54014866751828,"sku":"2170","price":38.95,"currency_code":"EUR","in_stock":true},{"title":"Complete: Adapter + Light Seal + Batteries","offer_id":54014866850132,"sku":"2171","price":39.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/3649\/4676\/files\/Startbild_Wasistes.png?v=1767092004"},{"product_id":"px625-ersatzbatterie-halter-fur-filmdose","title":"PX625 Battery Clip for 35mm Film Canister (MR9)","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery dead and no spare on hand?\u003c\/strong\u003e Attach your spare battery directly to the film canister so it’s ready to go when you change film.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMessy camera bag?\u003c\/strong\u003e The clip prevents small button cells from flying around loose and getting lost.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eScope of delivery\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x battery clip for 35mm film canister\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: technical plastic (PLA+)\u003c\/li\u003e\n\u003cli\u003eColor: black\u003c\/li\u003e\n\u003cli\u003eFit: standard 35mm film canisters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eAnyone who shoots analog knows the problem: the light meter dies, and the tiny spare battery is nowhere to be found. We designed this clip to securely attach a PX625 or MR9 adapter to a standard film canister. This way, you logically link film and power supply.\u003c\/p\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBatteries: PX625, V625U, MR9 adapter\u003c\/li\u003e\n\u003cli\u003eContainers: standard 35mm film canisters\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ausgeknipst","offers":[{"title":"Default Title","offer_id":51397741216084,"sku":"1498","price":22.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/3649\/4676\/files\/DSC00001_9_16af1ba5-5a5d-498c-9619-96167af092a2.jpg?v=1740411702"},{"product_id":"varta-v80h-batterie-fur-px625-ladegerat","title":"Battery for PX625 Charger (Varta V80H)","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery dead at the wrong moment?\u003c\/strong\u003e With a spare cell, you stay flexible and can keep shooting right away while the other battery charges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation is everything?\u003c\/strong\u003e Secure a backup power supply for your PX625 charging kit so your analog camera is always ready to go.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eScope of delivery\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Varta V80H NiMH battery (button cell)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Varta\u003c\/li\u003e\n\u003cli\u003eType: V80H (NiMH)\u003c\/li\u003e\n\u003cli\u003eVoltage: 1.2V\u003c\/li\u003e\n\u003cli\u003eCapacity: 80mAh\u003c\/li\u003e\n\u003cli\u003eRechargeable: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThis is the single Varta V80H cell, the ideal addition to our PX625 charger set. Since the V80H batteries have a specific charging curve and are designed for use in our adapter solutions, having a second battery in your bag is always a good idea. That way, you don’t have to take breaks when the light meter demands fresh energy.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAusgeknipst PX625 charger \/ charging kit\u003c\/li\u003e\n\u003cli\u003eSuitable for cameras converted or adapted to V80H operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Only charge with a suitable NiMH charger for button cells.\u003c\/p\u003e","brand":"Ausgeknipst","offers":[{"title":"Default Title","offer_id":52657526866260,"sku":"2039","price":12.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/3649\/4676\/files\/12271734358356_upscaled.jpg?v=1779893686"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/3649\/4676\/collections\/shopping.webp?v=1762857688","url":"https:\/\/ausgeknipst.de\/en\/collections\/px625-battery-alternatives.oembed","provider":"Ausgeknipst","version":"1.0","type":"link"}