---
product_id: 323938804
title: "FLEX AP 12.0/4.0-US 12V 4.0Ah Battery"
brand: "flex"
price: "$258"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/323938804-flex-ap-12-0-4-0-us-12v-4-0ah
store_origin: NZ
region: New Zealand
---

# 4.0Ah capacity for 35 min runtime 12V Li-ion power EMS protection & PCM cooling FLEX AP 12.0/4.0-US 12V 4.0Ah Battery

**Brand:** flex
**Price:** $258
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your precision with FLEX — stay charged, stay ahead!

## Quick Answers

- **What is this?** FLEX AP 12.0/4.0-US 12V 4.0Ah Battery by flex
- **How much does it cost?** $258 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/323938804-flex-ap-12-0-4-0-us-12v-4-0ah)

## 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

- • **Ready When You Are:** Battery charge indicator lets you monitor power levels at a glance—never get caught off guard.
- • **Built for FLEX Tools:** Seamlessly compatible with a wide range of FLEX cordless polishers and power tools for versatile use.
- • **Smart Protection System:** Integrated Electronic Management System (EMS) safeguards battery and tool, boosting efficiency and durability.
- • **Stay Cool Under Pressure:** Advanced Phase Change Material (PCM) technology keeps the battery cool, extending runtime and lifespan.
- • **Power Through Your Projects:** 12V lithium-ion battery delivers consistent, high-capacity energy for uninterrupted workflow.

## Overview

The FLEX AP 12.0/4.0-US is a 12V, 4.0Ah lithium-ion battery pack designed for FLEX cordless polishers and power tools. Featuring an Electronic Management System (EMS) and Phase Change Material (PCM) cooling technology, it ensures extended runtime, enhanced efficiency, and reliable protection against overheating and overcharging. Lightweight and compact, it includes a battery charge indicator and offers dust and splash resistance, making it a durable, high-performance power solution for professionals on the go.

## Description

FLEX PXE 12V/4.0 Cordless Battery is a lithium-ion high capacity battery used with the FLEX Cordless Polishers. The FLEX PXE 12V/4.0 Ah contains 12 volts and 4.0 amps, giving you up to 35 minutes of battery life. Using advanced technological advancements, the FLEX PXE 12V/4.0 Cordless Battery uses a Phase Change Material (PCM) to keep the battery cool while working, as well as extending the working time and overall battery life. The Electronic Management System (EMS) provides protection to both the battery and the tool and lead to higher efficiency. It is suitable for: PXE 80 12.0-EC; PXE 80 12.0-EC/2.5 Set; PXE 80 12.0-EC/2.5 P-Set; DD 2G 12.0-LD/4.0 Set; DD 2G 12.0-EC; DD 2G 12.0-EC/4.0 Set; PD 2G 12.0-EC; PD 2G 12.0-EC/6.0 Set; DWL 2500 12.0/18.0; RD 12.0/18.0/230

## Features

- Battery pack Li ion 12.0 V with integrated charge and discharge protection, battery charge indicator, dust and splash protection. Electronic management system (EMS) protects the battery pack, extends the service life, and increases efficiency.
- Suitable for: PXE 80 12.0-EC; PXE 80 12.0-EC/2.5 Set; PXE 80 12.0-EC/2.5 P-Set; DD 2G 12.0-LD/4.0 Set; DD 2G 12.0-EC; DD 2G 12.0-EC/4.0 Set; PD 2G 12.0-EC; PD 2G 12.0-EC/6.0 Set; DWL 2500 12.0/18.0; RD 12.0/18.0/230
- FLEX AP 12.0/4.0-US 12V 4.0Ah Battery
- Item Package Weight: 0.99 pounds

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | FLEX |
| Part Number | AP 12.0/4.0-US |
| Item Weight | 15.8 ounces |
| Product Dimensions | 2.95 x 2.95 x 4.49 inches |
| Item model number | AP 12.0/4.0-US |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Size | One Size |
| Color | Multi |
| Style | 12V 4.0Ah Battery |
| Finish | Brushed |
| Material | Blend |
| Pattern | Solid |
| Shape | Rectangular |
| Power Source | DC |
| Voltage | 12 Volts (DC) |
| Item Package Quantity | 1 |
| Included Components | 4.0Ah Battery |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Battery Capacity | 4 Amp Hours |
| Warranty Description | 1 Year Limited Warranty |

## Product Details

- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Brand:** FLEX
- **Battery Cell Composition:** Lithium Ion
- **Battery Capacity:** 4 Amp Hours
- **Recommended Uses For Product:** Power Tool

## Images

![FLEX AP 12.0/4.0-US 12V 4.0Ah Battery - Image 1](https://m.media-amazon.com/images/I/616OcHYrfLL.jpg)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/323938804-flex-ap-12-0-4-0-us-12v-4-0ah](https://www.desertcart.nz/products/323938804-flex-ap-12-0-4-0-us-12v-4-0ah)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-16*