The PX27 (also V27PX, EPX27, 4AG13, 4LR43) was a 4.5V alkaline battery used in compact cameras from the 1970s onwards. Original batteries are hardly available anymore or cost a lot. Here you’ll find the right adapters depending on your camera.
Quick check: Which adapter?
Two different adapters — one battery type
The PX27 was used in various camera series that have different battery compartment geometries. That’s why there are two specialized adapters instead of a universal solution:
- Minox 35 series (GT, EL, GL, LX, PE, EC, TLX) → Minox-specific adapter with 4x SR44 button cells
- Rollei 35 SE, 35 TE, A110 → Rollei-specific adapter with 3x LR44 button cells
Attention: The adapters are not interchangeable. The Minox adapter does not fit the Rollei and vice versa. Check which camera you have before ordering.
Comparison at a glance
| Adapter | For cameras | Battery type | Voltage | Price |
|---|---|---|---|---|
| PX27 Minox adapter | Minox 35 GT, EL, GL, LX, PE, EC, TLX | 4x SR44 | 6.2V (regulated to 4.5V) | €19,95 |
| PX27 Rollei adapter | Rollei 35 SE, 35 TE, A110 | 3x LR44 | 4.5V | €24,95 |
PX27 battery adapter for Minox 35
The best-selling PX27 replacement for the Minox 35 compact camera series. Uses 4x SR44 button cells and replaces the PX27 alkaline battery. Fits perfectly into the battery compartment of all Minox 35 models.
What is included in the set?
The adapter comes complete with 4x SR44 button cells — you can start right away. SR44 silver oxide batteries are available everywhere (drugstores, watchmakers, online) and cost just a few euros per set.
Compatible with
- Minox 35 GT
- Minox 35 EL
- Minox 35 GL
- Minox 35 LX
- Minox 35 PE
- Minox 35 EC
- Minox 35 TLX
- Minox 35 PL
PX27 adapter for Rollei 35 SE, TE & A110
Specifically developed for the Rollei 35 SE and 35 TE — the only Rollei 35 models that use a PX27 battery. Also compatible with the Rollei A110 pocket camera.
Important difference: Rollei 35 is not the same as Rollei 35
The earlier Rollei 35, 35 S, 35 T, and 35 B use a PX625 battery (1.35V). Only the later models 35 SE and 35 TE were switched to PX27 (4.5V). If your Rollei 35 has an "S" or "T" (without "E"), you need a PX625 adapter instead.
Compatible with
- Rollei 35 SE
- Rollei 35 TE
- Rollei 35 LED
- Rollei A110
Supplies & accessories
Replacement batteries for the adapters. You can also get SR44 and LR44 button cells at any drugstore — here are the matching sets directly from us.
Facts about the PX27
What was the PX27?
The PX27 was a cylindrical 4.5V alkaline battery (dimensions: approx. 13 x 25.2 mm). It was produced from the 1960s by Eveready, Mallory, and Varta. The designation varies by manufacturer: V27PX (Varta), EPX27 (Energizer), 4AG13, 4LR43, No. 27. Essentially, it consists of three LR43/AG12 cells connected in series.
Why is the PX27 no longer regularly available?
Unlike the PX625 (which contained mercury and was therefore banned), the PX27 was a regular alkaline battery. It wasn’t banned — manufacturers stopped production because demand dropped after the end of analog photography. Some suppliers still produce small batches, but at high prices (often over 10 EUR each).
Why not just insert 3x LR44 loose?
3x LR44 cells add up to 4.5V — the correct voltage. But without an adapter, the fit isn’t right: the cells wobble in the battery compartment, contact is unreliable, and corrosion can occur at the connections. The adapter secures the cells in the exact PX27 geometry and ensures clean contact at both poles.
Further resources
Adapter not included?
Do you have a camera with a PX27 battery that is not listed here? Write to us — we'll see if our engineering team can develop a suitable adapter.
Contact us