---
product_id: 782683907
title: "21800mAh Super Capacity Battery Compatible with iPhone 11, 0 Cycle Li-Polymer Replacement Battery for iPhone 11, with Professional Repair Tool Kit"
brand: "xyirmcyf"
price: "$54.76"
currency: USD
in_stock: true
reviews_count: 13
category: "Xyirmcyf"
url: https://www.desertcart.us/products/782683907-21800mah-super-capacity-battery-compatible-with-iphone-11-0-cycle
store_origin: US
region: United States of America
---

# 21800mAh Ultra Capacity 0 Cycle, 2000+ Charge Lifespan Pro Repair Kit Included 21800mAh Super Capacity Battery Compatible with iPhone 11, 0 Cycle Li-Polymer Replacement Battery for iPhone 11, with Professional Repair Tool Kit

**Brand:** xyirmcyf
**Price:** $54.76
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your iPhone 11 like a pro — never settle for less!

## Quick Answers

- **What is this?** 21800mAh Super Capacity Battery Compatible with iPhone 11, 0 Cycle Li-Polymer Replacement Battery for iPhone 11, with Professional Repair Tool Kit by xyirmcyf
- **How much does it cost?** $54.76 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/782683907-21800mah-super-capacity-battery-compatible-with-iphone-11-0-cycle)

## Best For

- xyirmcyf enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** 0 cycle, Li-Polymer tech supports over 2000 charging cycles for lasting performance.
- • **Safe & Smart Energy:** A+ grade battery with built-in smart chip protects against overcharge, overheating, and short circuits.
- • **DIY Upgrade Made Simple:** Comes with a professional repair tool kit and easy-to-follow installation guidance for confident self-replacement.
- • **Peace of Mind Guaranteed:** 12-month exchange or refund policy backed by responsive customer support.
- • **Power That Outlasts Your Day:** Supercharged 21800mAh capacity delivers longer life than the original iPhone 11 battery.

## Overview

This XYIRMCYF replacement battery for iPhone 11 (models A2111, A2223, A2221) boasts a massive 21800mAh capacity, significantly exceeding the original battery life. Featuring 0 cycle status and a lifespan of over 2000 charge cycles, it ensures long-term reliability. The package includes a professional repair tool kit for easy installation, while built-in smart safety chips provide protection against overcharging, overheating, and short circuits. Certified by CE, FCC, UL, PSE, and ROHS, it comes with a 12-month exchange or refund guarantee, making it a safe, powerful, and user-friendly upgrade for your iPhone 11.

## Description

Important notes: 1. Before you buy the product, please confirm your mobile phone model again to avoid buying a wrong battery. You can check the model number on the back of the phone. 2. We strongly recommend that you watch the corresponding installation video on YouTube before replacing the battery. 3. Please install carefully. Avoid puncturing the battery, which may cause battery expansion. 4. If your phone constantly restarts and the logo flashes or is not charged. Probably the connection of the ribbon cable is poor. Please re-insert the ribbon cable, check the connector and clamp it firmly. 5. Please make sure to fully charge and discharge your new battery 3 to 5 cycles. 6. Please use your original charger and cable to charge this battery. If you have any questions or problems with our products, please let us know.

Review: Nice upgrade! - Perfect fit. I was concerned with short life at first until I read the instructions in the listing. Be SURE to fully Charge and discharge 3 - 5 cycles to get maximum capacity. I just left the flashlight feature on. After a few cycles, the light would last several hours at the brightest setting. UPDATE: the battery still seemed to discharge quickly until I let it discharge slowly before recharging. Now, instead of going to zero overnight with nothing on, it goes to 45%. Will continue to monitor.
Review: Great baterry replacement - The battery is working great, good for the price. The installation method is easy if you know what you're doing. no hot battery, no drain, no leak.

## Features

- 【Compatible Model】This Replacement battery compatible with iPhone 11 (Model: A2111, A2223,A2221). (Note: NOT compatible with other iPhone model). Before purchasing this battery, please make sure that the your Phone model number matches!
- 【New Upgraded Capacity】 21800mAh Super capacity compatible with iPhone 11, more power than original standard battery, same size but more capacity and more power life. New 0 Cycle, up to 2000 charging cycles. You will no longer have to worry about your Phone running out of battery quickly!
- 【Easy Installation】XYIRMCYF Battery for iPhone 11 with complete professional repair tool kits. If you want to replace the battery more easily, we highly recommend you to watch videos about 11 battery replacement on YouTube. Novices can easily install, complete. If you have any questions about the battery, please contact us.
- 【Safe and Quality】XYIRMCYF 11 Replacement Battery is made of A+ grade high quality batteries. Built-in smart chip to prevent over charging, over discharging and overheating protection, short circuit protection, high safety performance, long service life. Meanwhile, our batteries are tested under strict quality control standards and certified by CE, FCC, UL, PSE, ROHS. Ensures efficient and safe use.
- 【12 Months, Exchange or Refund Guaranteed】 We place a high value on customer experience. If you have any questions, whether before or after sales, please do not hesitate to contact us. We will do our best to solve it for you.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FH6T64V8 |
| Best Sellers Rank | #571 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #1 in Cell Phone Replacement Batteries |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,106) |
| Date First Available | July 10, 2025 |
| Item Weight | 4.2 ounces |
| Item model number | 11 |
| Manufacturer | XYIRMCYF |
| Package Dimensions | 7.2 x 4.41 x 0.67 inches |

## Product Details

- **Brand:** XYIRMCYF
- **Model Name:** 11
- **Recommended Uses For Product:** Phone
- **Reusability:** Rechargeable
- **Unit Count:** 1.0 Count

## Images

![21800mAh Super Capacity Battery Compatible with iPhone 11, 0 Cycle Li-Polymer Replacement Battery for iPhone 11, with Professional Repair Tool Kit - Image 1](https://m.media-amazon.com/images/I/61FYmjG03bL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice upgrade!
*by F***Y on February 2, 2026*

Perfect fit. I was concerned with short life at first until I read the instructions in the listing. Be SURE to fully Charge and discharge 3 - 5 cycles to get maximum capacity. I just left the flashlight feature on. After a few cycles, the light would last several hours at the brightest setting. UPDATE: the battery still seemed to discharge quickly until I let it discharge slowly before recharging. Now, instead of going to zero overnight with nothing on, it goes to 45%. Will continue to monitor.

### ⭐⭐⭐⭐⭐ Great baterry replacement
*by M***! on January 29, 2026*

The battery is working great, good for the price. The installation method is easy if you know what you're doing. no hot battery, no drain, no leak.

### ⭐⭐⭐⭐⭐ THE ONE!
*by L***S on February 3, 2026*

EXCELLENT battery! I was nervous at first doing the installation myself, but it was actually pretty easy and straightforward (with the help of YouTube). I let the initial charge (around 65%) go down to about 20%, then charged to full overnight and THREE DAYS LATER I am at 66%. Even after a few phone calls, text messages, data usage, and watching YouTube videos..66%! Definitely worth it.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-06*