---
product_id: 21659311
title: "eCost12 Acuvar High Capacity AA Rechargeable Batteries 3100mAh NiMH"
brand: "ecost"
price: "171 zł"
currency: PLN
in_stock: true
reviews_count: 8
url: https://www.desertcart.pl/products/21659311-ecost12-acuvar-high-capacity-aa-rechargeable-batteries-3100mah-nimh
store_origin: PL
region: Poland
---

# Precharged & ready 3100mAh capacity Memory-free tech eCost12 Acuvar High Capacity AA Rechargeable Batteries 3100mAh NiMH

**Brand:** ecost
**Price:** 171 zł
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Life with Acuvar Batteries!

## Quick Answers

- **What is this?** eCost12 Acuvar High Capacity AA Rechargeable Batteries 3100mAh NiMH by ecost
- **How much does it cost?** 171 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/21659311-ecost12-acuvar-high-capacity-aa-rechargeable-batteries-3100mah-nimh)

## Best For

- ecost enthusiasts

## Why This Product

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

## Key Features

- • **Ready to Go:** Precharged and ready to use straight out of the package.
- • **Unleash Power:** Experience the ultra high capacity of 3100mAh for all your devices.
- • **Eco-Friendly Choice:** Rechargeable design reduces waste and saves you money.
- • **Perfect for High Drain:** Ideal for digital cameras and other high-drain electronics.
- • **Versatile Compatibility:** Compatible with most AA chargers for hassle-free charging.

## Description

eCost12 Acuvar High Capacity AA Rechargeable Batteries 3100mAh NiMH

## Features

- 12 Pack Ultra High Capacity AA
- Rechargeable 3100mAh NiMH
- Precharged and ready to use out of the package
- Perfect for digital cameras & high drain electronic devices
- Can be charged in most AA chargers | Memory Free

## Images

![eCost12 Acuvar High Capacity AA Rechargeable Batteries 3100mAh NiMH - Image 1](https://m.media-amazon.com/images/I/71-u91xZVjL.jpg)

## Customer Reviews

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    The product description doesn't tell the whole story - these are 3100 mAh at 1.2V
  

*by S***T on Reviewed in the United States on October 5, 2015*

You have to read the fine print. These "3100"mAh batteries are 1.2V, not 1.3V, which makes these closer to a 1.3V 2800mAh equivalent on paper (only 2.72Wh at 1.2V vs 2.77Wh at 1.3V). The problem is lower voltage effects electronics in ways that a simple mAh rating will not predict.These batteries hold their charge fairly well in low-duty applications - but in high draw electronics they do not perform very well. This is mainly due to their 1.2V specification. In other words - the 3100mAh rating is deceiving due to the fact most high-output NiMH batteries have their rating spec'd at 1.3V. To someone with little experience in the field of electronics 0.1V may not seem significant - but in reality it is, especially in sensitive electronics.The real word service comparison that I can provide is in a Yale z-wave dead bolt - and it's noteworthy. I have seen comparable service out of standard 1.5V alkaline batteries and 1500mAh 1.3V NiMH batteries. The rated Watt-hours would not suggest this - but the lower voltage (and proportional voltage drop-off over time) cause this battery to approach a device's minimum voltage much sooner, and therefore stop working. The battery may still have a charge - but it's not a useable charge due to the lower voltage.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Good Value -
  

*by O***R on Reviewed in the United States on February 2, 2021*

Will be using these in harsh colder than normal climates will let you know how it goes

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Best battery ever
  

*by O***A on Reviewed in the United States on November 7, 2017*

Best battery ever. Plays my 1 hour nightly cd over 6 times before replacing fresh batteries.  They keep their charge a long time. Run clocks for a year, and my toothbrush for 6 months.  use on mp3, for 10 to 15 hours of play.

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**Shop now:** [https://www.desertcart.pl/products/21659311-ecost12-acuvar-high-capacity-aa-rechargeable-batteries-3100mah-nimh](https://www.desertcart.pl/products/21659311-ecost12-acuvar-high-capacity-aa-rechargeable-batteries-3100mah-nimh)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-30*