---
product_id: 53448674
title: "Weincell MRB400 Z400PX PX400 EPX400 RM400 1.35V Zinc Air Battery by Wein"
brand: "heani"
price: "$21.11"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/53448674-weincell-mrb400-z400px-px400-epx400-rm400-1-35v-zinc-air
store_origin: US
region: United States of America
---

# Weincell MRB400 Z400PX PX400 EPX400 RM400 1.35V Zinc Air Battery by Wein

**Brand:** heani
**Price:** $21.11
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Weincell MRB400 Z400PX PX400 EPX400 RM400 1.35V Zinc Air Battery by Wein by heani
- **How much does it cost?** $21.11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/53448674-weincell-mrb400-z400px-px400-epx400-rm400-1-35v-zinc-air)

## Best For

- heani enthusiasts

## Why This Product

- Trusted heani brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Weincell MRB400 Z400PX PX400 EPX400 RM400 1.35V Zinc Air Battery by Wein …

## Product Details

- **Brand:** Heani
- **Battery Cell Composition:** Zinc-Air
- **Recommended Uses For Product:** Camera
- **Unit Count:** 1.0 Count
- **Voltage:** 1.35 Volts

## Images

![Weincell MRB400 Z400PX PX400 EPX400 RM400 1.35V Zinc Air Battery by Wein - Image 1](https://m.media-amazon.com/images/I/5122YVCxy2L.jpg)

## Questions & Answers

**Q: I have a ca. 1970 asahi pentax spotmatic.  will this battery work in it?  thanks.**
A: It works in my Honeywell Spotmatic II circa 1971; can’t say for sure with Asahi although I think they’re basically the same camera.

**Q: Will this fit in a canonet ql17 giii? tia**
A: No you need a different battery which we have for $9.99 regards Steve 1-800-221-2253 cambridgeworld

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Battery
*by C***S on March 17, 2025*

This is an expensive battery but it was the only one that fit. I have a Honeywell Pentax Spotmatic 35mm camera from the early70's. The battery powers the light meter so my choices are limited. I installed the battery and it began working immediately after not using it for 40 years.

### ⭐⭐⭐⭐⭐ Works
*by I***R on January 5, 2025*

This battery works as advertised.

### ⭐⭐⭐⭐⭐ Just what I needed
*by C***Y on September 6, 2024*

Was looking for a replacement battery for an old Pentax Spotmatic II, and I found. These worked great and brought my light meter back to life. I feel like they last as long as I’d expect - at least a few months depending on how much I’m shooting. I’ve only noticed their life being shortened when I was shooting in extremely cold temperatures, but that’s just how batteries tend to work.

## Frequently Bought Together

- Weincell MRB400 Z400PX PX400 EPX400 RM400 1.35V Zinc Air Battery by Wein
- Fujifilm Fujicolor 200 Color Negative Film (35mm Roll Film, 36 Exposures, 3-Pack)
- Kodak Ultramax 400 Color Print Film 36 Exp. 35mm DX 400 135-36 (108 Pics) (Pack of 3), Basic

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**Shop now:** [https://www.desertcart.us/products/53448674-weincell-mrb400-z400px-px400-epx400-rm400-1-35v-zinc-air](https://www.desertcart.us/products/53448674-weincell-mrb400-z400px-px400-epx400-rm400-1-35v-zinc-air)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-05*