---
product_id: 385866100
title: "FirstPower 3.7Ah 14.4V DW9091 Battery - Compatible with Dewalt 14.4V Battery XRP Cordless Power Tool - Upgraded Ni-MH DC9091 DW9091 DW9094 DE9091 DE9092 DE9038"
brand: "firstpower"
price: "€ 82.78"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.nl/products/385866100-firstpower-3-7ah-14-4v-dw9091-battery-compatible-with-dewalt
store_origin: NL
region: Netherlands
---

# 3.7Ah Capacity 14.4V Power Safety Features FirstPower 3.7Ah 14.4V DW9091 Battery - Compatible with Dewalt 14.4V Battery XRP Cordless Power Tool - Upgraded Ni-MH DC9091 DW9091 DW9094 DE9091 DE9092 DE9038

**Brand:** firstpower
**Price:** € 82.78
**Availability:** ✅ In Stock

## Summary

> 🔧 Power Up Your Projects with Confidence!

## Quick Answers

- **What is this?** FirstPower 3.7Ah 14.4V DW9091 Battery - Compatible with Dewalt 14.4V Battery XRP Cordless Power Tool - Upgraded Ni-MH DC9091 DW9091 DW9094 DE9091 DE9092 DE9038 by firstpower
- **How much does it cost?** € 82.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/385866100-firstpower-3-7ah-14-4v-dw9091-battery-compatible-with-dewalt)

## Best For

- firstpower enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Built-in protection against overcharging and overheating.
- • **Unleash Your Power:** Experience the 14.4V energy that keeps you going!
- • **No Memory, No Worries:** Charge and discharge freely without loss of capacity.
- • **Compatibility Champion:** Works seamlessly with a wide range of Dewalt tools.
- • **Long-Lasting Performance:** 3.7Ah capacity for extended tool usage.

## Overview

The FirstPower 3.7Ah 14.4V DW9091 Battery is a high-performance, compatible replacement for Dewalt's 14.4V tools. With no memory effect and advanced safety features, this upgraded Ni-MH battery ensures long-lasting power and reliability, making it an essential addition to your toolkit.

## Description

Full description not available

## Features

- 【Battery Features】: 14.4V / 3.7Ah / Ni-Mh. No Memory Effect, not hot when charge. Tested by manufacturer to match Dewalt & OEM product.
- 【Compatible with DEWALT 14V Tools & Charger 】: E.g: DEWALT DC984, DC9091, DC730KA, DC930KA, DCD920KX, DCD930KX, DW935, DW954, DW941K-2, DW9091, DW9094, DE9091, DE9038, DE9095...
- 【3.7Ah Higher Capacity】: Upgraded to 3.7Ah higher capacity battery with higher quality cells for long-lasting performance. 3.7Ah Higher capacity offering long-lasting performance and durability than other 4.0Ah.
- 【Safe & Stable】: No Memory Effect, Can be charged or discharged as needed without loss of capacity . Top A grade NI-MH Battery Cells, Built-in protection against potential damage caused by overcharging, overheating and short-circuit protection.
- 【High Quality XRP Battery】: High-capacity XRP battery has 40 percent more run-time than standard batteries. Easy to use & handle. 30 days money back, 1 Year Warranty, 24 hours service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Dimensions | 7.5 x 5.7 x 3.8 inches |
| Item Weight | 2.62 Pounds |
| Battery Weight | 2.62 Pounds |
| Unit Count | 2 Count |
| Battery Cell Type | NiMH |
| Recommended Uses For Product | Power Tool |
| Reusability | Rechargeable |
| Battery Capacity | 3.7 Amp Hours |
| Amperage | 3.7 Amps |
| Voltage | 14.4 Volts |
| Compatible Phone Models | DC9091 |

## Product Details

- **Number of Batteries:** 2 Product Specific batteries required. (included)
- **Brand:** FirstPower
- **Battery Cell Composition:** NiMH
- **Battery Capacity:** 3.7 Amp Hours
- **Recommended Uses For Product:** Power Tool

## Images

![FirstPower 3.7Ah 14.4V DW9091 Battery - Compatible with Dewalt 14.4V Battery XRP Cordless Power Tool - Upgraded Ni-MH DC9091 DW9091 DW9094 DE9091 DE9092 DE9038 - Image 1](https://m.media-amazon.com/images/I/61McUXf-bXL.jpg)
![FirstPower 3.7Ah 14.4V DW9091 Battery - Compatible with Dewalt 14.4V Battery XRP Cordless Power Tool - Upgraded Ni-MH DC9091 DW9091 DW9094 DE9091 DE9092 DE9038 - Image 2](https://m.media-amazon.com/images/I/61DqAsY1qfL.jpg)
![FirstPower 3.7Ah 14.4V DW9091 Battery - Compatible with Dewalt 14.4V Battery XRP Cordless Power Tool - Upgraded Ni-MH DC9091 DW9091 DW9094 DE9091 DE9092 DE9038 - Image 3](https://m.media-amazon.com/images/I/71cWzqFpXzL.jpg)
![FirstPower 3.7Ah 14.4V DW9091 Battery - Compatible with Dewalt 14.4V Battery XRP Cordless Power Tool - Upgraded Ni-MH DC9091 DW9091 DW9094 DE9091 DE9092 DE9038 - Image 4](https://m.media-amazon.com/images/I/61x2jnWqqOL.jpg)
![FirstPower 3.7Ah 14.4V DW9091 Battery - Compatible with Dewalt 14.4V Battery XRP Cordless Power Tool - Upgraded Ni-MH DC9091 DW9091 DW9094 DE9091 DE9092 DE9038 - Image 5](https://m.media-amazon.com/images/I/71p7KMlEWCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Battery Brought New Life to Old Drill
*by J***A on November 5, 2024*

I needed a new battery for an older DeWalt Drill. I was landed on First Power. The 14.4 V battery works well and fits the drill like a glove. The battery appears to hold the charge properly and works. Cant speak to how long it will last but so far so good.

### ⭐⭐⭐⭐⭐ Good replacement batteries for old DeWalt tools
*by D***G on April 21, 2025*

I bought these after sending back Vanon 4.8Ah hour batteries that didn't fit the DeWalt charger well and one of the batteries gave the "bad battery signal." See my review for that product.These batteries are only 3.7Ah, but I'm very pleased with them. I did not have to force them into the DeWalt charger and pry them back out. I used them for a fairly big job, using 1 1/4" screws to re-attach drywall to a ceiling hung on 70 year-old very hard trusses. This required a lot of energy from the battery, particularly for the last 1/2" of each screw. There were probably something like 150 screws.I used one battery on the first day and the second battery the next day. Neither battery seemed to have lost enough charge to be noticeable.If you have old DeWalt 14.4 volt tools you want to continue using, I recommend these batteries. The price is very reasonable.I would say that DeWalt tools have come a long way over the years, and rather than get new 14.4 batteries, you might want to consider new tools, but for occasional jobs, these batteries will keep your old tools working.

### ⭐⭐⭐⭐ Length of battery time
*by C***R on July 3, 2024*

So battery’s are great Especially if you are not trying to get rid of the drill and waste your money on a new one these batteries work great but the batteries length of time is not as good as the original dewalt or craftsman product. If you are like me who just using products around the house, fix things and repairs or builds a few things perfect if you’re contractor, you might want invest buy a new drill

## Frequently Bought Together

- FirstPower 3.7Ah 14.4V DW9091 Battery - Compatible with Dewalt 14.4V Battery XRP Cordless Power Tool - Upgraded Ni-MH DC9091 DW9091 DW9094 DE9091 DE9092 DE9038
- DC9310 Fast Charger Replace for DEWALT 18 Volts Battery Charger DW9116 Compatible with Dewalt 7.2V-18V Battery XRP NiCD/NiMH Battery DC9098 DC9096 DC9091 DE9057 DW9072(Not for Lithium Battery)
- 18V Replacement Battery for DeWALT: 18 Volt 5.0Ah XRP DC9096 Ni-Mh Batteries Compatible with DC9098 DC9099 DW9095 DW9096 DW9098 Cordless Power Tools

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*