---
product_id: 532380970
title: "SHINTYOOL 21V Lithium Battery with Electric Quantity Display, 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Mini Saw"
brand: "shintyool"
price: "$76.39"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/532380970-shintyool-21v-lithium-battery-with-electric-quantity-display-4-0
store_origin: US
region: United States of America
---

# 4.0 Ah High Capacity 21V Lithium Power Boost Universal 100-240V Charger SHINTYOOL 21V Lithium Battery with Electric Quantity Display, 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Mini Saw

**Brand:** shintyool
**Price:** $76.39
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your productivity—never get caught powerless again!

## Quick Answers

- **What is this?** SHINTYOOL 21V Lithium Battery with Electric Quantity Display, 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Mini Saw by shintyool
- **How much does it cost?** $76.39 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/532380970-shintyool-21v-lithium-battery-with-electric-quantity-display-4-0)

## Best For

- shintyool enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Compatibility:** Works with major brands and models—perfect for leaf blowers, mini saws, and more. Ask us to confirm your tool!
- • **Charge Anywhere, Anytime:** Universal 100-240V charger with LED indicator ensures fast, safe charging wherever you are.
- • **Power Your Tools Like a Pro:** 21V lithium-ion battery delivers consistent, high-voltage performance for demanding power tools.
- • **Built-In Safety You Can Trust:** Multi-protect system guards against overload, overheating, and over-discharge for long-lasting reliability.
- • **Stay Informed with Every Charge:** 4 LED electric quantity display keeps you in control of your battery life—no more guessing.

## Overview

This 21V 4.0 Ah lithium-ion rechargeable battery features a smart 4-LED power display and universal 100-240V charger with LED status indicator. Designed with multi-protect safety systems, it ensures reliable, long-lasting performance compatible with a wide range of power tools including leaf blowers and mini saws.

## Description

Full description not available

## Features

- ★【Compatible with More 】Our batteries are compatible with some major brands, for power tools bl1860b bl1850 bl1840 bl1850b-2 bl1845 bl1830 bl1820 bl1815 lxt-400 series please feel free to contact us for more model information.
- ★【21 Volt Lithium Battery 】Battery voltage: 21v, capacity: 4000ah, type: lithium ion, made of 10 pcs quality lithium ion battery,4 LED fuel gauge power display,battery light won't light up unless you will press the battery button, in order to reduce battery.
- ★【Charger】Support 100-240v universal standard ac input voltage. 1a power adapter,us plug,led indicator to easily see the charging situation.
- ★【Multi-Protect Safety System】This battery is equipped with overload protection, overheat protection & over-discharge protection.
- ★【Note on Battery】In order to protect the battery, please do not charge more than 6 hours.Note: Please Fully charge the battery before its first use. Please do not charge the battery for overnight since it will badly damage the battery life.
- ★【WE’VE GOT YOU COVERED】 Any Non-human Damage Or Any Reason You Are Not Completely Satisfied With Our Product, We Will Immediately Provide You A Full Refund ( Or Replace Your Item).
- ★Note: Our 21v battery is very similar to another 21v III battery, but the compatible tools and brands are different, please do not confuse and make a wrong purchase. Feel free to inquire to learn more.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Dimensions | 4.7 x 3 x 2.8 inches |
| Item Weight | 9 Ounces |
| Battery Weight | 1.4 Pounds |
| Unit Count | 1 Count |
| Battery Cell Type | Lithium Ion |
| Recommended Uses For Product | Power Tool |
| Reusability | Rechargeable |
| Battery Capacity | 4000 Milliamp Hours |
| Amperage | 1 Amps |
| Voltage | 21 Volts |
| Compatible Phone Models | ALLOYMAN,Abeden,NCOEN,Aoben,Zikopomi,tietoc,BEI & HONG,Bomves,O-CONN,Peektook,DIKAKO，Inquire to learn more about compatible brands. |

## Product Details

- **Number of Batteries:** 1 AAAA batteries required. (included)
- **Brand:** SHINTYOOL
- **Battery Cell Composition:** Lithium Ion
- **Battery Capacity:** 4000 Milliamp Hours
- **Recommended Uses For Product:** Power Tool

## Images

![SHINTYOOL 21V Lithium Battery with Electric Quantity Display, 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Mini Saw - Image 1](https://m.media-amazon.com/images/I/61CR85EalrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Did what I needed it to do.
*by T***N on June 27, 2025*

Bought for a small battery operated chain saw. Worked great. Came fully charged and lasted longer than the original battery.

### ⭐⭐⭐⭐⭐ Good battery
*by O***H on August 23, 2025*

I’ve only used it once and so far so good

### ⭐⭐⭐⭐⭐ Battery
*by J***R on July 20, 2025*

Work perfectly with impact tool that I bought

## Frequently Bought Together

- SHINTYOOL 21V Lithium Battery with Electric Quantity Display, 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Mini Saw
- SHINTYOOL 21V Single Port Rapid Charger Base, Fast Charger for 21V Lithium-Ion Battery (Battery Not Included)
- SHINTYOOL 21v Lithium Battery - 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower

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**Shop now:** [https://www.desertcart.us/products/532380970-shintyool-21v-lithium-battery-with-electric-quantity-display-4-0](https://www.desertcart.us/products/532380970-shintyool-21v-lithium-battery-with-electric-quantity-display-4-0)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-23*