---
product_id: 38199646
title: "FDK Replacement Battery Compatible with Braun Oral-b Triumph Professional Care (Type 3731 or 3745) Toothbrush (42mm Long, 17mm Diameter, 2150mAh)"
brand: "e toothbrush care"
price: "$1.95"
currency: USD
in_stock: true
reviews_count: 4
url: https://www.desertcart.us/products/38199646-fdk-replacement-battery-compatible-with-braun-oral-b-triumph-professional
store_origin: US
region: United States of America
---

# 42mm x 17mm size 2150mAh capacity Genuine Japan quality FDK Replacement Battery Compatible with Braun Oral-b Triumph Professional Care (Type 3731 or 3745) Toothbrush (42mm Long, 17mm Diameter, 2150mAh)

**Brand:** e toothbrush care
**Price:** $1.95
**Availability:** ✅ In Stock

## Summary

> 🔧 Revitalize Your Routine with a Simple Swap!

## Quick Answers

- **What is this?** FDK Replacement Battery Compatible with Braun Oral-b Triumph Professional Care (Type 3731 or 3745) Toothbrush (42mm Long, 17mm Diameter, 2150mAh) by e toothbrush care
- **How much does it cost?** $1.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/38199646-fdk-replacement-battery-compatible-with-braun-oral-b-triumph-professional)

## Best For

- e toothbrush care enthusiasts

## Why This Product

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

## Key Features

- • **📏 Perfect Fit:** Designed to match the exact dimensions of your Braun Oral-B toothbrush for seamless integration.
- • **🔧 DIY Friendly:** Soldering skills required? No problem! Empower yourself with the knowledge to replace your battery.
- • **⚡ Smart Charging Tips:** Follow best practices for charging to extend battery life and keep your toothbrush performing at its best.
- • **🔋 Power Up Your Smile:** Experience the robust 2150mAh capacity for longer brushing sessions.
- • **🛡️ Authentic Assurance:** Look for the 'Japan' markings and engraved 'HR' for guaranteed OEM quality.

## Overview

The FDK Replacement Battery is a high-quality, OEM rechargeable NiMH battery designed specifically for Braun Oral-B Triumph Professional Care toothbrushes. With a capacity of 2150mAh and precise dimensions of 42mm in length and 17mm in diameter, this battery ensures optimal performance. It features an off-centered negative tab for safe installation and comes with essential guidelines for DIY replacement, making it a reliable choice for maintaining your oral hygiene routine.

## Description



## Features

- FDK (Formerly SANYO) OEM rechargeable NiMH battery with tabs. Select the size based on length and diameter of your existing battery. Caution: Check the size before purchase as multiple sizes of battery are in use for this model.
- The negative tab is off-centered, matching the original for safe insertion. Always look for the mAh capacity and 'Japan' markings and engraved 'HR' at the negative terminal for genuine OEM battery.
- Replacing battery in electric toothbrush requires soldering skill. Read battery replacement instruction to assess the difficulty involved and access the old battery before purchase. Battery package label, color, and shape of tabs might vary. Best charging practice in keeping rechargeable battery for longer life is provided.

## Product Details

- **Brand:** E Toothbrush Care
- **Battery Cell Composition:** NiMH
- **Recommended Uses For Product:** Toothbrush
- **Unit Count:** 1.0 Count
- **Reusability:** Rechargeable

## Images

![FDK Replacement Battery Compatible with Braun Oral-b Triumph Professional Care (Type 3731 or 3745) Toothbrush (42mm Long, 17mm Diameter, 2150mAh) - Image 1](https://m.media-amazon.com/images/I/514wCcGkQmL.jpg)
![FDK Replacement Battery Compatible with Braun Oral-b Triumph Professional Care (Type 3731 or 3745) Toothbrush (42mm Long, 17mm Diameter, 2150mAh) - Image 2](https://m.media-amazon.com/images/I/61WSUx5lAnL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good fit for Braun toothbrush
*by S***O on October 2, 2024*

Bought this to replace an old battery in a Braun electric toothbrush that wouldn't hold a charge. The procedure is a bit of work and tests your patience, but it can completely renew an old electric toothbrush if you have the time, skill, patience and desire to not throw more money at Braun.Good capacity. Certainly much improved over the many years old battery it was replacing. Lasts over a week now (twice usage per day).

### ⭐ Defective tab placement but made it work - now it failed
*by P***N on November 2, 2017*

All others have given this 5stars so theirs must have been better. Mine had the tabs attached in such a manner that I had a very difficult time installing the battery. I had to do some twisting to get them going the same direction. Quality control seems to be a problem. Addendum - changed rating from 4 to 1 star because the battery failed after just 3 charges.

### ⭐⭐⭐⭐⭐ A new battery works wonders!
*by L***S on March 21, 2017*

My electric toothbrush works like a dream!

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**Shop now:** [https://www.desertcart.us/products/38199646-fdk-replacement-battery-compatible-with-braun-oral-b-triumph-professional](https://www.desertcart.us/products/38199646-fdk-replacement-battery-compatible-with-braun-oral-b-triumph-professional)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-22*