---
product_id: 207853968
title: "Activ energy Li-Ion Battery 20/40 Volt 5.0 Ah / 2.5 Ah 90 Wh for Ferrex Battery Tools"
brand: "activ energy"
price: "€ 79.94"
currency: EUR
in_stock: false
reviews_count: 8
category: "Activ Energy"
url: https://www.desertcart.gr/products/207853968-activ-energy-li-ion-battery-20-40-volt-5-0
store_origin: GR
region: Greece
---

# 20/40 V variable power Built-in charge indicator 5.0 Ah high capacity Activ energy Li-Ion Battery 20/40 Volt 5.0 Ah / 2.5 Ah 90 Wh for Ferrex Battery Tools

**Brand:** activ energy
**Price:** € 79.94
**Availability:** ❌ Out of Stock

## Summary

> 🔋 Power up your productivity—never slow down with Activ Energy!

## Quick Answers

- **What is this?** Activ energy Li-Ion Battery 20/40 Volt 5.0 Ah / 2.5 Ah 90 Wh for Ferrex Battery Tools by activ energy
- **How much does it cost?** € 79.94 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/207853968-activ-energy-li-ion-battery-20-40-volt-5-0)

## Best For

- activ energy enthusiasts

## Why This Product

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

## Key Features

- • **Lightweight yet robust:** At just 0.74 kg, it’s easy to handle without compromising power.
- • **Dual voltage flexibility:** Seamlessly switch between 20V and 40V modes to match your tool’s power needs.
- • **Power that lasts all day:** 5.0 Ah capacity ensures extended runtime for your Ferrex tools and garden gear.
- • **Samsung lithium-ion cells:** Premium battery cells deliver consistent, reliable energy and longevity.
- • **Stay in control with charge indicator:** Never get caught off guard—monitor your battery life at a glance.

## Overview

The Activ Energy Li-Ion Battery offers a versatile 20/40 Volt output with a robust 5.0 Ah capacity, powered by premium Samsung lithium-ion cells. Designed specifically for Ferrex battery and garden tools, it features a convenient built-in charge indicator and a lightweight design, ensuring long-lasting, reliable performance for demanding DIY and professional tasks.

## Description

Active energy li battery maximum 20 40 v li ion 5.0 ah 2.5 a 90 wh. Battery with variable performance from liquor cells from Samsung. Maximum 20v 2.5ah x2 units 90wh. With battery charge indicator. Suitable for Ferrex battery tools and garden tools. Active energy li-ion battery 20 40 volts 5.0 ah 2.5 ah 90 wh for ferrex battery tools.

Review: Does what it says - Use this with my lawnmower. Good battery life. Easy to use
Review: Lawnmower rechargeable battery. - Product does exactly what it says on the tin..seller delivered item within the time frame, promptly and on time..overall 10/10.

## Features

- Active Energy LI battery maximum 20/40 V LI-ION 5.0 Ah/2.5 A 90 Wh.
- Battery with variable power LI-ION cells from Samsung.
- Maximum 20 V = 2.5 Ah (x2 units) 90 Wh.
- With battery charge indicator.
- Suitable for Ferrex battery tools and garden tools.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XM89NMG |
| Amperage | 2.5 Amps |
| Antenna Location | Phone |
| Battery Capacity | 5 Amp Hours |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 600 Grams |
| Battery capacity | 5 Amp Hours |
| Battery cell composition | Lithium Ion |
| Best Sellers Rank | 31,673 in DIY & Tools ( See Top 100 in DIY & Tools ) 148 in Cordless Tool Battery Packs |
| Brand | ACTIV ENERGY |
| Brand Name | ACTIV ENERGY |
| Compatible Phone Models | Samsung |
| Customer Reviews | 4.2 out of 5 stars 492 Reviews |
| Item Weight | 0.74 Kilograms |
| Manufacturer | ACTIV ENERGY |
| Model Name | batterie li-ion |
| Model Number | 1 |
| Number of Batteries | 1 AAA batteries required. (included) |
| Number of batteries | 1 AAA batteries required. (included) |
| Recommended uses for product | Phone |
| Reusability | Rechargeable |
| Unit Count | 1.0 Count |
| Unit count | 1.0 Count |
| Voltage | 20 Volts |

## Product Details

- **Number of batteries:** 1 AAA batteries required. (included)
- **Brand:** ACTIV ENERGY
- **Battery cell composition:** Lithium Ion
- **Battery capacity:** 5 Amp Hours
- **Recommended uses for product:** Phone

## Images

![Activ energy Li-Ion Battery 20/40 Volt 5.0 Ah / 2.5 Ah 90 Wh for Ferrex Battery Tools - Image 1](https://m.media-amazon.com/images/I/51LoqBeGRoL.jpg)

## Questions & Answers

**Q: Can these batteries be used on spears and Jackson lawnmower and strimmer**
A: No it does not ,,as I found out last week ,,,,would not recommend getting ant battery from a online outlet ,,as if there’s a problem and need to send it back the post office and other carriers will NOT ship the item as it’s classed as hazardous,,,,,,.but Amazon has contact with post office to ship them out ,,,,just doesn’t make sense but that’s the way it is

**Q: Aldi don’t sell these anymore. I have several tools and one battery does any other battery fit.**
A: Replying to rocky - are you sure they’re available online? I’m on the hunt for these batteries and can’t see them on the Aldi website (10/04/2022).

**Q: Battery stopped working after 7months someone needs to contact me**
A: Electrical guaranteed for 12 month

**Q: Does this give double the running time of the 20V version of this battery with a 20V device such as the Frerrex combi driver?**
A: yes it doubles the volts and amps so in theory doubles the time

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does what it says
*by N***D on 3 May 2025*

Use this with my lawnmower. Good battery life. Easy to use

### ⭐⭐⭐⭐⭐ Lawnmower rechargeable battery.
*by T***Y on 2 August 2025*

Product does exactly what it says on the tin..seller delivered item within the time frame, promptly and on time..overall 10/10.

### ⭐⭐⭐⭐ Seems to do what I expected
*by P***R on 27 April 2024*

I already had the mower, and it had a battery, but garden is too large to cut on one battery, and takes more than an hour to charge, so I decided to get a second battery. I panicked at first as it would not charge, yet ran for only a short while. But it seems to have settled down now, is powering and charging fine.

## Frequently Bought Together

- Activ energy Li-Ion Battery 20/40 Volt 5.0 Ah / 2.5 Ah 90 Wh for Ferrex Battery Tools
- Activ Energy Universal Battery Charger for FERREX Battery Tools Garden Tools

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**Shop now:** [https://www.desertcart.gr/products/207853968-activ-energy-li-ion-battery-20-40-volt-5-0](https://www.desertcart.gr/products/207853968-activ-energy-li-ion-battery-20-40-volt-5-0)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-26*