---
product_id: 718774125
title: "40V Battery and Charger Kit 4.0 Ah Lithium-Ion Battery Set OEM OP4040 + OP403A"
brand: "ryobi"
price: "¥65279"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/718774125-40v-battery-and-charger-kit-4-0-ah-lithium-ion
store_origin: JP
region: Japan
---

# Lithium-ion fade-free power On-board LED battery indicator 4.0 Ah high-capacity battery 40V Battery and Charger Kit 4.0 Ah Lithium-Ion Battery Set OEM OP4040 + OP403A

**Brand:** ryobi
**Price:** ¥65279
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your projects with unstoppable energy!

## Quick Answers

- **What is this?** 40V Battery and Charger Kit 4.0 Ah Lithium-Ion Battery Set OEM OP4040 + OP403A by ryobi
- **How much does it cost?** ¥65279 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/718774125-40v-battery-and-charger-kit-4-0-ah-lithium-ion)

## Best For

- ryobi enthusiasts

## Why This Product

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

## Key Features

- • **Extended Power Play:** 4.0 Ah battery delivers longer runtime for uninterrupted productivity
- • **Rapid Slim Charging:** Compact charger powers up your battery quickly without bulk
- • **Fade-Free Performance:** Advanced lithium-ion cells ensure consistent power until fully drained
- • **Seamless Compatibility:** Works flawlessly with all Ryobi 40V tools you already own
- • **Smart Power Monitoring:** LED indicator keeps you in control of battery life at a glance

## Overview

The RYOBI 40V Battery and Charger Kit features a high-capacity 4.0 Ah lithium-ion battery and a slim, fast charger. Compatible with all Ryobi 40V tools, it offers fade-free performance and an on-board LED indicator for real-time battery status, ensuring extended runtime and efficient power management for all your outdoor power equipment needs.

## Description

Use this either as a spare, a replacement, or as your first battery in your outdoor tool lineup. It can charge Ryobi’s 40V outdoor product line. That includes their leaf blower, chain saw, edger, hedge trimmer, lawn mower, string trimmer, power head, pole saw, and hedge trimmer. You’re bound to be using at least one of these tools at any point during the year, and that means you’ll need reliable energy. This 40 Volt battery has the features any homeowner needs in a reliable product. It has an onboard fuel gauge, letting you know how much of a charge is left with LED lighting. Its power doesn’t fade over time, meaning that you can work with your tools on full power until the battery runs out. Perhaps most impressive is this battery’s cold-weather performance. It can work in conditions as cold as -4 degrees Fahrenheit! Couple these features with the speedy charge time, Ryobi’s suite of powerful outdoor tools, and a long runtime, this is a product you’ll wish you had three more of as soon as you get to using it. Ryobi means reliable, and this OP40404 40 Volt battery is no exception. New Slim Line design provides quick charge technology in a portable form factor Includes USB charging port so you can charge other devices (such as your cell phone) while your Ryobi 40V battery is charging.

## Features

- Includes the Ryobi 40 Volt 4.0 battery and the slim charger
- Both the Battery and charger is compatible with all other pre existing Ryobi 40V equipment
- On-board LED battery life indicator
- Lithium-ion cells deliver fade-free performance
- High capacity OP40404 4.0 Ah battery for extended run time

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery Charge Time | 2.5 Hours |
| Input Voltage | 240 Volts |
| Item Weight | 3.6 Pounds |
| Color | Black, Green |

## Product Details

- **Number of batteries:** 1 Lithium Ion batteries required.
- **Brand:** RYOBI
- **Battery cell composition:** Lithium Ion
- **Battery capacity:** 4000 Milliampere Hour (mAh)
- **Recommended uses for product:** for use with Ryobi 140V power tools

## Images

![40V Battery and Charger Kit 4.0 Ah Lithium-Ion Battery Set OEM OP4040 + OP403A - Image 1](https://m.media-amazon.com/images/I/71gG-1Lm+IL.jpg)

## Questions & Answers

**Q: Can a ryobi 6 ah battery be used in a 4ah mower and a 4ah charger?**
A: The charger that comes with this 4ah battery does not work with my 6ah battery. It flashes red to show a fault. I have a 6ah battery that came with my mower. I bought this 4ah battery as a secondary to be able to finish the lawn in one session.

**Q: how do i charge**
A: Use the charger that came with the battery.  When all else fails, read the directions.

**Q: Does this battery fit a Ryobi mower #40180-Y**
A: Yes fit

**Q: Will this work on my Ryobi snowblower?**
A: If your snowblower uses a 40V battery it will work. Though note the ah of the battery in your snow blower.  The higher the ah means less recharging during jobs.

## Frequently Bought Together

- Ryobi 40V Battery and Charger Kit 4.0 Ah Lithium-Ion Battery Set OEM OP4040 + OP403A
- Ryobi 40V 4.0 Ah Lithium-Ion Battery OP4040

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**Shop now:** [https://www.desertcart.jp/products/718774125-40v-battery-and-charger-kit-4-0-ah-lithium-ion](https://www.desertcart.jp/products/718774125-40v-battery-and-charger-kit-4-0-ah-lithium-ion)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-25*