---
product_id: 604577715
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: "$179"
currency: NZD
in_stock: false
reviews_count: 5
url: https://www.desertcart.nz/products/604577715-21v-lithium-battery-with-electric-quantity-display-4-0-ah
store_origin: NZ
region: New Zealand
---

# 4.0 Ah High Capacity 21V Lithium Power Universal 100-240V Charger 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:** $179
**Availability:** ❌ Out of Stock

## Summary

> 🔋 Power up your productivity with confidence—never miss a beat!

## 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?** $179 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/604577715-21v-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

- • **Seamless Compatibility:** Works with major brands and models including BL1860B, BL1850, and LXT-400 series—perfect for leaf blowers and mini saws.
- • **Stay Informed, Stay Ahead:** 4-LED electric quantity display lets you monitor battery life at a glance—never get caught off guard again.
- • **Charge Smart, Work Smarter:** Universal charger with LED indicator supports 100-240V input for fast, safe charging anywhere.
- • **Power That Keeps You Going:** 21V lithium-ion battery with 4.0 Ah capacity delivers long-lasting, reliable energy for your power tools.
- • **Built-In Safety You Can Trust:** Multi-protect system guards against overload, overheating, and over-discharge to extend battery life.

## Overview

This 21V 4.0 Ah lithium-ion battery features a 4-LED power display and universal 100-240V charger, designed for compatibility with major power tool brands. Equipped with advanced safety protections, it ensures reliable, long-lasting performance for leaf blowers, mini saws, and more.

## Description

Our 21v lithium battery with parameters display are compatible with some major brands, please feel free to contact us for more model information.Specifications:Type: BatteryRated Voltage: 21VParameters Display:4 led electric quantity displayPower Input: 400WCharger Input:110V, 50Hz-60HzNumber of Batteries:1Cells Per Batter: 10Battery Weight :20 OZSpecification:Type: Battery power adapterMaterial: ABSPlug type: USInput voltage:100-240V 50HZ/60HZInterface: about 5.5*2.5mm/0.2*0.1inOutput current:1AWeight:9 OZNote：1. Do not try to open the battery.2. Protect the battery against continuous intense sunlight, fire, water, and moisture.3. Do not damage the battery with sharp objects.4. Do not discard this product at will.5. Overcharging the device will reduce the life of the battery, unplug it from the charger in time to avoid overcharging.6. If the battery does not last 10 minutes, it may be caused by overheating. Please wait for 5 minutes for the battery to cool down.Battery Maintenance:Please read the following notes on battery maintenance carefullyAfter receiving the product, please fully charge the battery before using it.In order to protect the battery, please do not charge the battery for a long time. The best time to charge is not more than 6 hours.Please do not charge the battery all night, it will seriously damage the battery life.We recommend using the battery at least once every two to three weeks.How to install batteryStep 1: Hold the machine firmly with one hand. Push down the battery unlock button located on the rear side of the battery with the other hand.Step 2: Keep pushing the unlock button down and slide the battery backward out of the machine.Step 3: You made it.

Review: Replacement battery for SeeSii Chainsaw matched OEM battery exactly. Delivered from Layger Imports within time expected, and follow-up from Layger was appreciated. Good public relations. Battery and charger are exact items and will make use of the Mini Chainsaw more efficient. Will deal with them and if needed re-order items such as this. Thanks.
Review: 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.

## 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 |
| Best Sellers Rank | #167,860 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #497 in Leaf Blowers |
| Item model number | B5503 |
| Manufacturer | SHINTYOOL |
| Product Dimensions | 11.94 x 7.62 x 7.11 cm; 255.15 g |

## 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)
![21V Lithium Battery with Electric Quantity Display, 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Mini Saw - Image 2](https://m.media-amazon.com/images/I/71XVwnOeTbL.jpg)
![21V Lithium Battery with Electric Quantity Display, 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Mini Saw - Image 3](https://m.media-amazon.com/images/I/713y-Ap6QyL.jpg)
![21V Lithium Battery with Electric Quantity Display, 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Mini Saw - Image 4](https://m.media-amazon.com/images/I/71bNSVacKML.jpg)
![21V Lithium Battery with Electric Quantity Display, 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Mini Saw - Image 5](https://m.media-amazon.com/images/I/61z1GC24tZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by G***D on 28 October 2024*

Replacement battery for SeeSii Chainsaw matched OEM battery exactly. Delivered from Layger Imports within time expected, and follow-up from Layger was appreciated. Good public relations. Battery and charger are exact items and will make use of the Mini Chainsaw more efficient. Will deal with them and if needed re-order items such as this. Thanks.

### ⭐⭐⭐⭐⭐ Review
*by S***T on 21 November 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.

### ⭐⭐⭐⭐⭐ Review
*by T***N on 27 June 2025*

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

## 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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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-13*