---
product_id: 532380970
title: "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: "30261 Ft"
currency: HUF
in_stock: true
reviews_count: 8
category: "Shintyool"
url: https://www.desertcart.hu/products/532380970-21v-lithium-battery-with-electric-quantity-display-4-0-ah
store_origin: HU
region: Hungary
---

# 4.0 Ah High Capacity 21V Lithium Power Universal Charger with LED 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:** 30261 Ft
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your productivity with smart, safe, and sleek energy!

## Quick Answers

- **What is this?** 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?** 30261 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/532380970-21v-lithium-battery-with-electric-quantity-display-4-0-ah)

## 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

- • **Stay In The Know:** 4-LED electric quantity display lets you monitor battery life at a glance—no surprises on the job.
- • **Seamless Compatibility:** Works with major brands and popular power tools like leaf blowers and mini saws—expand your toolkit effortlessly.
- • **Charge Smart, Work Fast:** Universal 100-240V charger with LED indicator ensures quick, safe charging anywhere.
- • **Power That Keeps You Moving:** 21V lithium-ion battery delivers consistent, long-lasting energy for your tools.
- • **Built-In Safety You Can Trust:** Multi-protect system guards against overload, overheating, and over-discharge for peace of mind.

## Overview

The SHINTYOOL 21V Lithium Battery offers a robust 4.0 Ah capacity with a clear 4-LED power display, compatible with a wide range of power tools including leaf blowers and mini saws. Equipped with a universal charger and advanced safety protections, it ensures reliable performance and longevity, making it an essential upgrade for professionals seeking dependable cordless power.

## Description

Buy SHINTYOOL 21V Lithium Battery with Electric Quantity Display, 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Mini Saw: Battery Packs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Nice fit. - Ordered this to be a second battery for my impact I bought here on desertcart awhile back, but I could not find that impact brand here anymore. I was hesitant at first, but when I received it it fit like a glove and works well. Charged pretty fast too and has the power I needed. The correct mAh I was looking for too.
Review: Did what I needed it to do. - Bought for a small battery operated chain saw. Worked great. Came fully charged and lasted longer than the original battery.

## 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 |
|---------------|-------|
| ASIN | B0B64631SL |
| Amperage | 1 Amps |
| Antenna Location | Power Tool |
| Battery Capacity | 4000 Milliamp Hours |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 1.4 Pounds |
| Best Sellers Rank | #123,662 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,118 in Cordless Tool Battery Packs |
| Brand | SHINTYOOL |
| Built-In Media | Battery with Charger Adapter |
| Compatible Phone Models | Compatible: For ALLOYMAN, Aoben, seesill, AVHRIT, Inquire to learn more about compatible brands. |
| Customer Reviews | 4.6 out of 5 stars 296 Reviews |
| Item Dimensions | 4.7 x 3 x 2.8 inches |
| Item Weight | 9 Ounces |
| Manufacturer | SHINTYOOL |
| Model Name | bl1820 |
| Model Number | B5503 |
| Number of Batteries | 1 AAAA batteries required. (included) |
| Recommended Uses For Product | Power Tool |
| Reusability | Rechargeable |
| Unit Count | 1.0 Count |
| Voltage | 21 Volts |
| Warranty Description | 1 yera |

## Product Details

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

## Images

![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

### ⭐⭐⭐⭐⭐ Nice fit.
*by S***T on November 21, 2025*

Ordered this to be a second battery for my impact I bought here on Amazon awhile back, but I could not find that impact brand here anymore. I was hesitant at first, but when I received it it fit like a glove and works well. Charged pretty fast too and has the power I needed. The correct mAh I was looking for too.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Extra
*by T***I on January 5, 2026*

Good last long

## 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.hu/products/532380970-21v-lithium-battery-with-electric-quantity-display-4-0-ah](https://www.desertcart.hu/products/532380970-21v-lithium-battery-with-electric-quantity-display-4-0-ah)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-27*