---
product_id: 43040115
title: "Aqua Lung Dive Computer Battery Kit (i100, i300, i300C, i550 Compatible)"
brand: "aqualung"
price: "€ 31.59"
currency: EUR
in_stock: true
reviews_count: 8
category: "Aqualung"
url: https://www.desertcart.hr/products/43040115-aqua-lung-dive-computer-battery-kit-i100-i300-i300c-i550
store_origin: HR
region: Croatia
---

# 3.0V CR2450 lithium-ion battery Complete kit with O-ring & instructions Watertight silicone grease seal Aqua Lung Dive Computer Battery Kit (i100, i300, i300C, i550 Compatible)

**Brand:** aqualung
**Price:** € 31.59
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay powered, stay underwater—never miss a dive moment!

## Quick Answers

- **What is this?** Aqua Lung Dive Computer Battery Kit (i100, i300, i300C, i550 Compatible) by aqualung
- **How much does it cost?** € 31.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/43040115-aqua-lung-dive-computer-battery-kit-i100-i300-i300c-i550)

## Best For

- aqualung enthusiasts

## Why This Product

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

## Key Features

- • **Power That Lasts:** Extended battery lifespan means more dive time, less downtime.
- • **Vacation Essential:** Don’t let a dead battery ruin your tropical escape—always have a fresh backup ready.
- • **Perfect Compatibility:** Tailored for Aqualung i100, i300, i300C & i550 models—plug & play peace of mind.
- • **Warranty-Safe Upgrade:** Genuine Aqualung parts keep your dive computer’s warranty intact and performance peak.
- • **Dive-Ready Maintenance:** Includes O-ring and silicone grease for a flawless, watertight seal every time.

## Overview

The Aqua Lung Dive Computer i300 / i550 Battery Kit is a genuine replacement kit featuring a high-performance 3.0V CR2450 lithium-ion battery, O-ring, and silicone grease. Designed specifically for Aqualung i100, i300, i300C, and i550 dive computers, it ensures optimal device performance, extended battery life, and a watertight seal to protect your gear during every dive. This kit is an essential, warranty-safe maintenance upgrade for serious divers who demand reliability and peace of mind on every underwater adventure.

## Description

Aqua Lung Dive Computer Battery Kit (i100, i300, i300C, i550 Compatible)

Review: Just what we needed - Shipping took a bit, but worked perfectly to replace our batteries in our dive computers .
Review: Works great - Fixed my dive computer - works very well. It can be a little tricky to get the gasket back on, but lube it well and it fits on i100 AquaLung computer

## Features

- EXTENDED LIFESPAN - Ensures your Aqualung dive computer remains powered for longer, reducing the need for frequent battery changes and maximizing your dive time.
- OPTIMAL PERFORMANCE - Specifically designed for Aqualung i100, i300, i300C, and i550 dive computers, guaranteeing seamless compatibility and reliable operation underwater.
- COMPLETE MAINTENANCE - Includes a CR2450 lithium-ion battery, O-ring, and silicone grease, providing everything needed for a proper battery replacement and seal maintenance.
- ENHANCED DURABILITY - The included silicone grease ensures a watertight seal, protecting your dive computer from water damage and extending its overall lifespan in harsh conditions.
- PEACE OF MIND - Using this genuine Aqualung battery kit ensures that your dive computer maintains its warranty and operates at its peak performance during every dive.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N3D0XFZ |
| Best Sellers Rank | #125,650 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #11 in Diving Electronics |
| Brand | Aqualung |
| Brand Name | Aqualung |
| Customer Reviews | 4.7 out of 5 stars 102 Reviews |
| Item Dimensions | 2 x 2 x 0.25 inches |
| Item dimensions L x W x H | 2 x 2 x 0.25 inches |
| Manufacturer | Aqua Lung |
| Material | Silicone |
| Material Type | Silicone |
| Thread Type | Cr2450 |
| UPC | 053242319829 |
| Unit Count | 1.0 Count |
| Warranty Description | Manufacturer warranty |

## Product Details

- **Brand:** Aqualung
- **Item dimensions L x W x H:** 2.5 x 2.5 x 0.1 inches
- **Material:** Silicone
- **Thread Type:** Cr2450
- **UPC:** 053242319829

## Images

![Aqua Lung Dive Computer Battery Kit (i100, i300, i300C, i550 Compatible) - Image 1](https://m.media-amazon.com/images/I/51gExcY-QRL.jpg)

## Questions & Answers

**Q: What size is this o-ring?**
A: Don’t know, comes on a kit with the battery and some silicon gel

**Q: Does this battery kit work with the aqualung i450t wrist computer?**
A: The 450T takes a CR2450 which is advertised in this kit. The real question is if the oring fits the i450t.

**Q: Does this work with the i200 ?**
A: If you are asking if the i200 will Bluetooth sync to the i300, I do not believe they will.

**Q: does this come with the tool to open the battery compartment?**
A: Yes mine did come with the tool o ring grease and the battery hope this helps.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Just what we needed
*by T***Y on January 30, 2026*

Shipping took a bit, but worked perfectly to replace our batteries in our dive computers .

### ⭐⭐⭐⭐⭐ Works great
*by W***E on February 21, 2025*

Fixed my dive computer - works very well. It can be a little tricky to get the gasket back on, but lube it well and it fits on i100 AquaLung computer

### ⭐⭐⭐⭐⭐ Direct fit
*by C***P on January 7, 2025*

Prompt delivery and a direct fit.

## Frequently Bought Together

- Aqua Lung Dive Computer i300 / i550 Battery Kit
- Duracell 2450 Lithium Battery, 1 Count (Pack of 1), Coin Batteries for Key Fob, Car Remote, Watch, CR2450, 3 Volt (3V) Cell

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**Shop now:** [https://www.desertcart.hr/products/43040115-aqua-lung-dive-computer-battery-kit-i100-i300-i300c-i550](https://www.desertcart.hr/products/43040115-aqua-lung-dive-computer-battery-kit-i100-i300-i300c-i550)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-23*