Battery adapter (4x LR44 to 4LR44/PX28) for Canon AE-1, A-1, Mamiya 645 & Pentax 67
Battery adapter (4x LR44 to 4LR44/PX28) for Canon AE-1, A-1, Mamiya 645 & Pentax 67
Availability for pickups could not be loaded
Sustainability pledge
Sustainability pledge
All our products are made from PLA - a material derived from sugarcane and corn that is 100% biodegradable.
Free shipping within Germany
Free shipping within Germany
With free shipping to your home in 2-3 days.
30 Days Money Back Guarantee
30 Days Money Back Guarantee
You can test any product for 30 days. If you’re not satisfied, we’ll refund the full purchase price including shipping costs. No ifs, ands, or buts.
- Expensive specialty batteries? The 4LR44 (PX28) is often hard to find and costly.
- Available everywhere? LR44 button cells are sold in every supermarket – this adapter makes them usable.
- Want flexibility? Use four affordable LR44 or high-quality SR44 cells as a replacement.
Scope of delivery
- 1x battery adapter (for 4x LR44/SR44)
Technical specifications
- Material: Technical plastic (PLA+)
- Color: Black
- Input: 4x LR44 (alkaline) or 4x SR44 (silver oxide)
- Output: Replaces 1x 4LR44 / PX28 / V28PX (6V)
- Note: Batteries are not included
Description
This adapter allows you to operate your camera with four common LR44 or SR44 button cells instead of a single, often expensive 4LR44 (PX28) battery. Made from technical plastic (PLA+), it ensures a perfect fit in the battery compartment and provides the correct voltage of 6V. This way, you are independent of specialty batteries and can rely on standard cells that are available almost everywhere.
Compatibility
Fits various cameras, including:
- Canon: A1, AE-1, AE-1 Program, AT-1, F-1N, New F-1 [...]
- Pentax: 67, 6x7, ES, ES II
- Mamiya: 645, 645 Pro, 645 Super, 7, 7 II, RZ67 Pro [...]
- Hasselblad: 2000 FC, 201 F, 202 FA, 203 FE, 205 FCC, PME [...]
- Yashica: Electro 35 CC, Electro 35 CCN, Electro 35 MC, FR, FR I, FR II [...]
- Nikon: EL, EL2, ELW
Not sure if the battery fits your camera?
Here is a complete list of all cameras compatible with the 4LR44 battery type.
Share

Schnell und so wie es sein soll.
Statt teuerer PX-28-Batterien kauft man sich billige LR44-Knopfzellen, das amortisiert die Anschaffungskosten des Batterieadapters in überschaubarer Zeit.
Super, mit dem Ding kann ich nun Standardbatterien verwenden. Funktioniert wie beschrieben.
Funktioniert1a in meiner Canon AE-1. Ist gut verarbeitet und erfüllt seinen Zweck.
Reviews in Other Languages
I ordered this a bit ago and it brought my "dead" camera back alive.
Feels good to give "old" gear a new life again.
We are Anto & Vladi
Support a young startup
You want clever solutions instead of mass-produced goods? With us, you don’t buy from an anonymous wholesaler, but directly from the founders. We (Anto & Vladi) started our startup in 2021 in Würzburg to help you bring analogue photography back to life.
Developed by engineers
Quality made in Germany
We do not sell anything we would not use ourselves. We are engineers and camera enthusiasts, and we know that precision is especially important in camera technology. That is why every single part is designed and thoroughly tested by us here in Würzburg.
From Germany to the whole world
Fast DHL shipping
You don’t want to wait forever for your item? Every article is personally made fresh for you by us in Würzburg on the day of your order, checked, packed, and sent worldwide. As soon as you have ordered, your package is almost on its way to you with the fastest shipping options from DHL and Deutsche Post.