{"product_id":"ausgeknipst-ersatz-akku-ladegerat-fur-px625-mr9-varta-v80h-batterie-1-35v","title":"PX625 battery + USB-C charger (V80H) for Rollei 35, Canon F-1 \u0026 more","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","url":"https:\/\/ausgeknipst.eu\/products\/ausgeknipst-replacement-battery-charger-for-px625-mr9-varta-v80h-battery-1-35v","provider":"Ausgeknipst","version":"1.0","type":"link"}