---
product_id: 743878411
title: "18800mAh (2025 New Upgrade) Battery Compatible with iPhone 11 PRO MAX, Super Capacity Battery Replacement Compatible with iPhone 11 PRO MAX, with Full Tool Kits-0 Cycle-24 Months Service"
brand: "luuzkla"
price: "148 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Luuzkla"
url: https://www.desertcart.ro/products/743878411-18800mah-2025-new-upgrade-battery-compatible-with-iphone-11-pro
store_origin: RO
region: Romania
---

# 18800mAh Ultra-High Capacity Full Professional Repair Kit Included Grade A+ Safety Certified Cells 18800mAh (2025 New Upgrade) Battery Compatible with iPhone 11 PRO MAX, Super Capacity Battery Replacement Compatible with iPhone 11 PRO MAX, with Full Tool Kits-0 Cycle-24 Months Service

**Brand:** luuzkla
**Price:** 148 Lei
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Like a Pro — Never Miss a Beat with the Ultimate iPhone 11 Pro Max Battery Upgrade!

## Quick Answers

- **What is this?** 18800mAh (2025 New Upgrade) Battery Compatible with iPhone 11 PRO MAX, Super Capacity Battery Replacement Compatible with iPhone 11 PRO MAX, with Full Tool Kits-0 Cycle-24 Months Service by luuzkla
- **How much does it cost?** 148 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/743878411-18800mah-2025-new-upgrade-battery-compatible-with-iphone-11-pro)

## Best For

- luuzkla enthusiasts

## Why This Product

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

## Key Features

- • **Power Through Your Day:** 18800mAh capacity delivers 3x the original battery life—stay unplugged longer and dominate your schedule.
- • **Worry-Free 24-Month Warranty:** Enjoy peace of mind with a full 2-year return and exchange service backed by responsive customer support.
- • **DIY Battery Upgrade Made Easy:** Includes a complete professional-grade tool kit so you can replace your iPhone 11 Pro Max battery confidently at home.
- • **Zero Cycle, Maximum Longevity:** Brand new 0 cycle battery engineered to last over 2000 charge cycles—future-proof your phone’s performance.
- • **Certified Safety You Can Trust:** Built-in IC chip and UL 2054 & ILAC ISO 17025 certifications protect against overcharging, overheating, and defects.

## Overview

This 18800mAh high-capacity replacement battery for iPhone 11 Pro Max offers triple the original battery life with zero charge cycles and over 2000 recharge cycles lifespan. It comes with a full professional repair toolkit for easy DIY installation and features Grade A+ certified cells with built-in safety IC chips to prevent overcharging and overheating. Backed by a 24-month warranty, it’s the perfect upgrade to extend your phone’s life and reduce daily charging interruptions.

## Description

In response to the majority of battery buyers in the market, we listed the following cases: 1. Your phone won't turn on, consumes too much power or can't be fully charged? Maybe bad connect. Reopen your phone and reconnect the battery connector to logic board socket. Make sure battery connector connects well. 2. Short battery life? It takes 3-5 cycles Compatible with a new battery to fully activate, and it's best to use an original charger. 3. What should I pay attention to during installation? BeCompatible withe you repair, discharge your iphone battery 20% and turn off. The most important and difficult part is removing the battery by removing the sticky flexible tape without damaging the old battery, make sure to heat-up the phone at the back with a hairdryer to make it flexible. Package List: 1 x Battery 1 x Adhesive Strips 1 x Suction cup 1 x Tweezers 1 x Wedge 1 x Spudgers 1 x Pentacle screwdriver 1 x Y-Shaped Screwdrive 1 x Phillips screwdriver

Review: make your phone work like new - The best way to extend the life of your smartphone. And this kit includes the necessary tools to do it yourself.
Review: Excellent option - Replaced a swollen battery on a 3yr Pixel 6, it's been only 2 days but I do see the difference from the old to new battery on use time So far is great, if a get 3 more years, then it's perfect Take your time while assembling and it will be easy

## Features

- 【18800mAh High Capacity】18800mAh Super battery Compatible with iPhone 11 PRO MAX power more than Original or Other Battery. Brand new 0 cycle, last over 2000 cycles. Make your Phone 11 PRO MAX last longer and reduce your recharging times. Say goodbye to the trouble of insufficient old batteries!
- 【Battery Compatible with iPhone 11 PRO MAX】This super capacity battery is compatible Compatible with iPhone 11 PRO MAX A2161，A2220，A2218. With the high-tech integrated battery cells, this battery Compatible with iPhone 11 PRO MAX features a much higher capacity——18800mAh while with the same size as the original. (Not Compatible with other phone models). The exact model number can be found on the back of your phone.
- 【Safe and Secure Battery】To choose a battery replacement Compatible with your iPhone 11 PRO MAX, safety must be your first concern, which is also our top priority. 100% New High Quality Updated Battery Compatible with iPhone 11 PRO MAX, Uses Grade A+ Battery Cells With UL 2054 And ILAC ISO 17025 Standard Certified, Each Battery Comes With A Tested Under Strict Quality Control Standard, And Built-In IC Chip To Prevent From Over-Charging, Over-Heating And Other Defects.
- 【Contains Professional Repair Tool Kits】We offer high quality repair tools kit for bettery installation. If you want to replace the battery more easily, highly recommended relevant videos of replacing the battery on YouTube.
- 【Great Customer Servicel】24 Months return and exchange service. If you are not satisfied with our iPhone 11 PRO MAX battery, we have a perfect after-sale team to help you, So you don’t need to worry about anything about after-sale. We hope you will have a pleasant shopping experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F9WLSYVS |
| Best Sellers Rank | #5,742 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #5 in Cell Phone Replacement Batteries |
| Customer Reviews | 4.0 4.0 out of 5 stars (508) |
| Date First Available | May 26, 2025 |
| Item Weight | 5 ounces |
| Item model number | 11Pro Max |
| Manufacturer | Luuzkla |
| Package Dimensions | 7.17 x 4.45 x 0.67 inches |

## Product Details

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

## Images

![18800mAh (2025 New Upgrade) Battery Compatible with iPhone 11 PRO MAX, Super Capacity Battery Replacement Compatible with iPhone 11 PRO MAX, with Full Tool Kits-0 Cycle-24 Months Service - Image 1](https://m.media-amazon.com/images/I/61iTOiDZULL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ make your phone work like new
*by M***Z on February 25, 2026*

The best way to extend the life of your smartphone. And this kit includes the necessary tools to do it yourself.

### ⭐⭐⭐⭐⭐ Excellent option
*by G***0 on February 12, 2026*

Replaced a swollen battery on a 3yr Pixel 6, it's been only 2 days but I do see the difference from the old to new battery on use time So far is great, if a get 3 more years, then it's perfect Take your time while assembling and it will be easy

### ⭐ Avoid this battery at all costs
*by J***E on April 8, 2025*

Disappointed with Performance – Did Not Hold Charge and not working. I purchased the Luuzkla 11500mAh (2024 New Upgrade) battery for my iPhone 14 Pro Max, hoping for improved battery life and reliable performance. Unfortunately, the product did not meet expectations. Despite being marketed as a "super capacity" battery with 0 cycle count and full tool kits, it failed to hold a charge from the very beginning. Installation was straightforward thanks to the included tools, but the battery performance was extremely poor. After a full charge, the battery drained quickly even faster than my original battery. I followed all recommended steps, but the issue persisted. This is especially disappointing given the advertised 11500mAh capacity and "upgrade" claims. I've since reinstalled my old battery, which performs better than this new one. I appreciate the idea of a cost-effective replacement with an extended service life, but unfortunately, this product did not deliver. I hope the manufacturer addresses these quality control issues for future buyers.

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**Shop now:** [https://www.desertcart.ro/products/743878411-18800mah-2025-new-upgrade-battery-compatible-with-iphone-11-pro](https://www.desertcart.ro/products/743878411-18800mah-2025-new-upgrade-battery-compatible-with-iphone-11-pro)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-02*