---
product_id: 679844946
title: "FLEX 24V 5.0Ah Lithium-Ion Battery - FX0121-1"
brand: "flex"
price: "€ 8.72"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.de/products/679844946-flex-24v-5-0ah-lithium-ion-battery-fx0121-1
store_origin: DE
region: Germany
---

# 24V Lithium Power Fast 30-60 Min Charge THERMA-TECH Cooling FLEX 24V 5.0Ah Lithium-Ion Battery - FX0121-1

**Brand:** flex
**Price:** € 8.72
**Availability:** ❌ Out of Stock

## Summary

> 🔋 Power up smarter, last longer, and never miss a beat!

## Quick Answers

- **What is this?** FLEX 24V 5.0Ah Lithium-Ion Battery - FX0121-1 by flex
- **How much does it cost?** € 8.72 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/679844946-flex-24v-5-0ah-lithium-ion-battery-fx0121-1)

## Best For

- flex enthusiasts

## Why This Product

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

## Key Features

- • **Built Tough for Any Job:** Shock-resistant, drop, dust, and water resistant design keeps you working no matter the conditions.
- • **Stay Informed Instantly:** Patented dual-sided fuel gauge lets you check battery life from multiple angles at a glance.
- • **Smart & Safe Performance:** POWER IQ intelligently manages cells to prevent overload and optimize power output.
- • **Unmatched Power & Runtime:** 24V Lithium tech delivers 20% more driving force with 25% longer runtime thanks to advanced cooling.
- • **Rapid Recharge, Zero Downtime:** Choose 160W charger for 60-minute or 280W rapid charger for a lightning-fast 30-minute full charge.

## Overview

The FLEX 24V 5.0Ah Lithium-Ion Battery FX0121-1 combines cutting-edge 24V lithium technology with THERMA-TECH cooling for 25% longer runtime and 20% more power. Featuring intelligent POWER IQ management, a patented dual-sided fuel gauge, and a rugged, weather-resistant design, it ensures peak performance on any job site. Fast charging options (30-60 mins) and a battery lock system prevent downtime and accidental disconnections. Compatible across all FLEX 24V tools and backed by a limited lifetime warranty when registered.

## Description

The FLEX 24V Lithium battery platform brings power output to the next level. It combines intelligent battery management with THERMA-TECH™ cooling technology to deliver a driving force that's up to 20% higher than anything you've already seen out there.Protected by the FLEX Limited Lifetime Warranty when registered within 30 days of purchase at registermyFLEX.com through December 31, 2025.

Review: Works great.
Review: Charges fast great OEM quality!

## Features

- THE FLEX ADVANTAGE - 24V Lithium Technology
- THERMA-TECH HEAT MANAGEMENT - Innovative cooling system minimizes heat for 25% longer runtime
- POWER IQ - Intelligent power management monitors and optimizes the cells for overload protection and higher power
- DROP, DUST, AND WATER RESISTANT - Engineered with a shock-resistant design and sealed electronics
- PATENTED DUAL-SIDED FUEL GAUGE - Quickly view battery charge from multiple angles
- FAST CHARGING - 160W Fast Charger Charge Time: 60 Mins, 280W Rapid Charger Charge Time: 30 Mins
- BATTERY LOCK SYSTEM - Durable design prevents accidental disconnection during recharging
- FLEX 24V CROSS-COMPATIBILITY - Compatible with all FLEX 24V batteries, chargers, and tools
- FLEX LIMITED LIFETIME WARRANTY - Register your new FLEX tool, battery, or charger within 30 days of purchase through December 31, 2025 to receive a limited lifetime warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | FLEX |
| Brand | Flex |
| Model | 24V 5.0Ah Lithium Battery |
| Product Dimensions | 13.21 x 8.89 x 5.33 cm; 997.9 g |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Item model number | FX0121-1 |
| Manufacturer Part Number | FX0121-1 |
| Voltage | 24 Volts |
| Item Weight | 998 g |

## Product Details

- **Number of batteries:** 1 12V batteries required. (included)
- **Brand:** Flex
- **Battery cell composition:** Lithium Ion
- **Unit count:** 1 Count
- **Voltage:** 24 Volts

## Images

![FLEX 24V 5.0Ah Lithium-Ion Battery - FX0121-1 - Image 1](https://m.media-amazon.com/images/I/61PZgpsFgpL._AC_SX679_.jpg)
![FLEX 24V 5.0Ah Lithium-Ion Battery - FX0121-1 - Image 2](https://m.media-amazon.com/images/I/714bQxslyGL._AC_SL1500_.jpg)
![FLEX 24V 5.0Ah Lithium-Ion Battery - FX0121-1 - Image 3](https://m.media-amazon.com/images/I/714bQxslyGL._AC_SX679_.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***N on 19 October 2025*

Works great.

### ⭐⭐⭐⭐⭐ Review
*by V***G on 30 May 2025*

Charges fast great OEM quality!

### ⭐⭐⭐⭐⭐ Review
*by K***D on 15 June 2025*

Flex is awesome this is exactly what's advertised will definitely be purchasing more in the future

## Frequently Bought Together

- FLEX 24V 5.0Ah Lithium-Ion Battery - FX0121-1
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**Shop now:** [https://www.desertcart.de/products/679844946-flex-24v-5-0ah-lithium-ion-battery-fx0121-1](https://www.desertcart.de/products/679844946-flex-24v-5-0ah-lithium-ion-battery-fx0121-1)

---

*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-01-31*