---
product_id: 544646743
title: "YISHDABattery Case for iPhone 12 Pro Max, 8500mAh Portable Protective Charging Case with Extended Backup, Ultra Rechargeable Battery Pack External Charger (6.7inch) - Black"
brand: "yishda"
price: "¥11131"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/544646743-yishdabattery-case-for-iphone-12-pro-max-8500mah-portable-protective
store_origin: JP
region: Japan
---

# Charge & sync without removal Designed for iPhone 12 Pro Max 8500mAh capacity YISHDABattery Case for iPhone 12 Pro Max, 8500mAh Portable Protective Charging Case with Extended Backup, Ultra Rechargeable Battery Pack External Charger (6.7inch) - Black

**Brand:** yishda
**Price:** ¥11131
**Availability:** ✅ In Stock

## Summary

> 🔌 Power Meets Style: Never Run Out of Juice Again!

## Quick Answers

- **What is this?** YISHDABattery Case for iPhone 12 Pro Max, 8500mAh Portable Protective Charging Case with Extended Backup, Ultra Rechargeable Battery Pack External Charger (6.7inch) - Black by yishda
- **How much does it cost?** ¥11131 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/544646743-yishdabattery-case-for-iphone-12-pro-max-8500mah-portable-protective)

## Best For

- yishda enthusiasts

## Why This Product

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

## Key Features

- • **Stay Informed:** 4 LED indicators keep you updated on your battery level at a glance.
- • **Power Up Your Day:** With a robust 8500mAh battery, stay charged and connected all day long!
- • **Easy Access & Control:** Perfect cutouts for seamless access to all ports and integrated power switch.
- • **Smart Charging Technology:** Intelligently prioritizes charging your phone before the battery case.
- • **Sleek & Stylish Protection:** Lightweight design that protects against drops while keeping your style intact.

## Overview

The YISHDA Battery Case for iPhone 12 Pro Max is a sleek, protective charging solution featuring an impressive 8500mAh capacity. Designed specifically for the iPhone 12 Pro Max, it allows for charging and syncing without removal, while its lightweight design ensures maximum portability. With smart charging technology and LED indicators, you can effortlessly manage your power needs.

## Description

YISHDABattery Case for iPhone 12 Pro Max, 8500mAh Portable Protective Charging Case with Extended Backup, Ultra Rechargeable Battery Pack External Charger (6.7inch) - Black

## Features

- 【Warm Tips Before Purchase】:①The battery charger case is only fit for iPhone 12 pro max(6.7inch), not fit for iPhone 12/12pro (6.1inch)/iPhone 12 Mini(5.4inch) or other models; ②Only work with Apple airpods or other wireless Bluetooth headphone. Not compatible with iPhone lightning headphone.
- 【Advanced Charge and Sync】: This battery case can charge and sync your phone to computer without removing it from iPhone 12 Pro Max’s battery pack via your original Apple Lightning cable (lightning cable was not included). With smart charge design, it will charge your phone first. After your phone is fully charged, it will be intelligently change to charge the backup battery.
- 【Full Protection】: All complete soft bumper frame design protects your phone from scratches, bumps, drops and etc. It keeps your phone very fashionable. Perfect cutouts allow access to speakers, charging ports and buttons. Meanwhile, it is lightweight and super slim to carry.
- 【Power Switch and Indicators】: Integrated power switch allows you to switch the battery case on and off. You can use the battery case only when you need it. With 4 LED battery level indicators, you can know exactly how much power is left (0%-25%-50%-75%-100%).
- 【Warranty and Notes】：Please contact YISHDA customer service team at the first time if you are not satisfied with any item bought from YISHDA.【Please click on "YiSHDA" next to "Sold by", and then click on "Ask a question" to contact us. We will reach out to you within 24 hours.】We will do our best to help you to solve the problems. Please do not worry.

## Product Details

- **Brand:** YISHDA
- **Compatible phone models:** iPhone 12 Pro Max
- **Colour:** Black
- **Compatible devices:** iPhone 12 Pro Max
- **Material:** Plastic
- **Water resistance level:** Not Water Resistant
- **Pattern:** Solid
- **Theme:** Protective
- **Special feature:** Lightweight
- **Finish type:** Smooth

## Images

![YISHDABattery Case for iPhone 12 Pro Max, 8500mAh Portable Protective Charging Case with Extended Backup, Ultra Rechargeable Battery Pack External Charger (6.7inch) - Black - Image 1](https://m.media-amazon.com/images/I/61-GBowAsZL.jpg)
![YISHDABattery Case for iPhone 12 Pro Max, 8500mAh Portable Protective Charging Case with Extended Backup, Ultra Rechargeable Battery Pack External Charger (6.7inch) - Black - Image 2](https://m.media-amazon.com/images/I/71iCUAvNCJL.jpg)
![YISHDABattery Case for iPhone 12 Pro Max, 8500mAh Portable Protective Charging Case with Extended Backup, Ultra Rechargeable Battery Pack External Charger (6.7inch) - Black - Image 3](https://m.media-amazon.com/images/I/71ZdBFZlXVL.jpg)
![YISHDABattery Case for iPhone 12 Pro Max, 8500mAh Portable Protective Charging Case with Extended Backup, Ultra Rechargeable Battery Pack External Charger (6.7inch) - Black - Image 4](https://m.media-amazon.com/images/I/71S6KxdrDaL.jpg)
![YISHDABattery Case for iPhone 12 Pro Max, 8500mAh Portable Protective Charging Case with Extended Backup, Ultra Rechargeable Battery Pack External Charger (6.7inch) - Black - Image 5](https://m.media-amazon.com/images/I/61XykNBOGBL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Questions & Answers

**Q: Recently bought the phone case I got the original headset for the phone I plugged the headset in but it’s not showing the symbol that headset connect**
A: I too had this problem, I couldn't have my headphones (original) plugged in to the case and for them to connect and still work. Unfortunately I had to either have the case off and listen to headphones, but I didn't want to risk damaging the connections so I went ahead and purchased some Bluetooth enabled headphones and they work well. One thing I have to say about this case is mine gets really hot when charging my phone from the case. Whether that's just my case being damaged over time just thought id let you know. All the best. Hope all is well with the current COVID situation.

**Q: Hey, how long should it take to fully charge the battery case? Not sure if it's broken but it never seems to reach full battery capacity**
A: It should take up to 2 hours to fully charge but before you charge the phone you must charge the charger

**Q: Can you use normal headphones with an adapter?**
A: Yes

**Q: Can you stick a magnet to the back of the case?**
A: because the charging box capacity is high, the strength of the magnet is not too strong . Thank you for your advice.

## Frequently Bought Together

- YISHDA Battery Case for iPhone 12 Pro Max, 8500mAh Portable Protective Charging Case for iPhone 12 Pro Max Extended Backup Ultra Rechargeable Battery Pack External Charger Case(6.7inch)-Black
- JETech Privacy Screen Protector for iPhone 12 Pro Max 6.7-Inch with Camera Lens Protector, Anti Spy Tempered Glass Film, 2-Pack Each

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/544646743-yishdabattery-case-for-iphone-12-pro-max-8500mah-portable-protective](https://www.desertcart.jp/products/544646743-yishdabattery-case-for-iphone-12-pro-max-8500mah-portable-protective)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-09*