---
product_id: 670576051
title: "ESR for MagSafe Power Bank, 0.55 in Ultra-Compact 5,000mAh MagSafe Portable Charger,15W Ultra-Fast Battery Pack, 20W USB-C MagSlim Charger with Cable for iPhone 17/16/15/14/13/12, Black"
brand: "esr"
price: "¥5353"
currency: JPY
in_stock: true
reviews_count: 8
category: "Esr"
url: https://www.desertcart.jp/products/670576051-esr-for-magsafe-power-bank-0-55-in-ultra-compact
store_origin: JP
region: Japan
---

# 15W Ultra-Fast MagSafe Charging 0.55 in Ultra-Compact Slim Profile 1,200g Strong Magnetic Lock ESR for MagSafe Power Bank, 0.55 in Ultra-Compact 5,000mAh MagSafe Portable Charger,15W Ultra-Fast Battery Pack, 20W USB-C MagSlim Charger with Cable for iPhone 17/16/15/14/13/12, Black

**Brand:** esr
**Price:** ¥5353
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Meets Portability: Charge Fast, Stay Sleek, and Never Miss Out!

## Quick Answers

- **What is this?** ESR for MagSafe Power Bank, 0.55 in Ultra-Compact 5,000mAh MagSafe Portable Charger,15W Ultra-Fast Battery Pack, 20W USB-C MagSlim Charger with Cable for iPhone 17/16/15/14/13/12, Black by esr
- **How much does it cost?** ¥5353 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/670576051-esr-for-magsafe-power-bank-0-55-in-ultra-compact)

## Best For

- esr enthusiasts

## Why This Product

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

## Key Features

- • **Power Up in a Flash:** Experience 2x faster charging with 15W MagSafe power—never miss a beat during your busy day.
- • **Dual Device Charging:** Simultaneously power your iPhone wirelessly and another device via 20W USB-C wired port—stay connected everywhere.
- • **Stay Cool, Charge Safe:** Advanced AI-driven heat dissipation and NTC sensor protect your device from overheating and overcharging.
- • **Magnetic Precision Lock:** 1,200g magnetic force ensures your charger snaps perfectly into place—no slips, no interruptions.
- • **Pocket-Sized Powerhouse:** Ultra-slim 0.55-inch thickness and featherlight 0.31 lb design fits effortlessly in your purse or pocket.

## Overview

The ESR MagSafe Power Bank is a sleek, ultra-compact 5,000mAh portable charger designed for iPhone 12 through 17 series. Delivering 15W ultra-fast MagSafe wireless charging alongside a 20W USB-C wired port, it offers dual-device charging with advanced heat management and a strong 1,200g magnetic lock for secure, efficient power on the go.

## Description

Shop ESR for MagSafe Power Bank, 0.55 in Ultra-Compact 5,000mAh MagSafe Portable Charger,15W Ultra-Fast Battery Pack, 20W USB-C MagSlim Charger with Cable for iPhone 17/16/15/14/13/12, Black. Free delivery and returns on eligible orders.

Review: Good small battery bank - What can I say? My wife loves it. Small enough to keep in a purse and charges the phone very well both another couple for my nephew and niece. Can charge my phone more than one times and is easy enough to charge it with the MagSafe.
Review: Great low profile fast MagSafe charger - Very good quality MagSafe charger. It is well made, locates well with a strong magnet and doesn’t get hot, just sometimes warm. Best of all it does what it is supposed to and charges quickly. Don’t expect multiple charges on an iPhone 17 as it is only a smaller capacity but does what it does well - a low profile, well made made low profile MagSafe charge to get you out of trouble. Recommended.

## Features

- 15W Fast Charging: 15W MagSafe iPhone charging gives you safer, faster, and more reliable charge, powering your iPhone 15 Pro 2x faster than a 7.5W charger
- Ultra-Compact: slim and compact at just 0.55 in thick and 0.31 lb, this 5,000 mAh power bank is the perfect on-the-go charger
- Heat Dissipation: built-in NTC sensor, AI algorithm, and graphene heat dissipation actively monitor charging to prevent overcharging and overheating, ensuring safe device protection and air travel approval
- Strong Magnetic Lock: 1,200 g of magnetic force keeps your portable charger securely in place during charging
- Charge 2 at Once: charge two devices simultaneously with 15W MagSafe wireless charging and USB-C wired charging; wireless charging is only compatible with iPhone 16/15/14/13/12 series; in the box: 15W portable charger, 2.0-ft (0.6 m) USB-C to USB-C cable, and manual
- Complete Customer Support: detailed setup videos and FAQs, comprehensive 24-month protection plan, lifetime support, and personalized help
- Note:Samsung and Android without wireless charging can only use 20W USB-C wired charging.Don't support MagSafe wireless charging Samsung and Android with non-magnetic case.Don't support 15W fast charging for Samsung and Android

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D7LXD9ML |
| Battery Capacity | 5000 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery Weight | 60 Grams |
| Battery capacity | 5000 Milliamp Hours |
| Best Sellers Rank | 185 in Mobile Phone Portable Power Banks |
| Brand | ESR |
| Brand Name | ESR |
| Colour | Black |
| Compatible Devices | iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max,iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max,iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 13 Mini，iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max |
| Connector Type | USB Type C |
| Connector type | USB Type C |
| Customer Reviews | 4.1 out of 5 stars 280 Reviews |
| Global Trade Identification Number | 04894240201053 |
| Item Dimensions | 10.5 x 6.8 x 1.4 centimetres |
| Item Dimensions L x W x Thickness | 10.5L x 6.8W x 1.4Th centimetres |
| Item Weight | 140 Grams |
| Manufacturer | ESR |
| Model Number | 2G521 |
| Number of Batteries | 1 Lithium Polymer batteries required. |
| Number of Ports | 1 |
| Other Special Features of the Product | Wireless |
| Portable | Yes |
| Power Source | Corded Electric |
| Product Warranty | 1 year |
| Reusability | Rechargeable |
| Special feature | Wireless |
| Voltage | 5 Volts |
| Warranty Type | Limited |

## Product Details

- **Battery capacity:** 5000 Milliamp Hours
- **Brand:** ESR
- **Colour:** Black
- **Connector type:** USB Type C
- **Special feature:** Wireless

## Images

![ESR for MagSafe Power Bank, 0.55 in Ultra-Compact 5,000mAh MagSafe Portable Charger,15W Ultra-Fast Battery Pack, 20W USB-C MagSlim Charger with Cable for iPhone 17/16/15/14/13/12, Black - Image 1](https://m.media-amazon.com/images/I/61BF9EgnO0L.jpg)

## Questions & Answers

**Q: Why does charging stop at 80%?**
A: Your iPhone may pause charging at 80% to prevent overheating as part of iOS 17's temperature management. Charging will resume once it cools down, and moving it to a cooler spot can help speed up the process.

**Q: Why does the power bank get warm during use?**
A: It's normal that the power bank may feel warm during use as magnetic charging converts electrical energy into electromagnetic waves, generating heat.

**Q: How can I prevent overheating?**
A: To reduce overheating, avoid using your iPhone or running power-intensive apps while it’s charging.

**Q: Why is my magsafe power bank providing fewer charges than expected?**
A: Due to a 30% to 40% capacity loss from battery cell and circuit inefficiencies during charging, a fully charged ESR 5,000mAh magsafe portable charger effectively provides about 3,000mAh to 3,500mAh ofusable power to your devices.

**Q: What should I do if my phone isn’t charging with the MagSafe power bank?**
A: Ensure your iPhone is MagSafe-compatible (iPhone 12 series or later), your case is under 2 mm thick, and there are no metal accessories, credit cards, or pop sockets between your phone and the power bank.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good small battery bank
*by R***Y on 10 January 2026*

What can I say? My wife loves it. Small enough to keep in a purse and charges the phone very well both another couple for my nephew and niece. Can charge my phone more than one times and is easy enough to charge it with the MagSafe.

### ⭐⭐⭐⭐⭐ Great low profile fast MagSafe charger
*by A***R on 1 October 2025*

Very good quality MagSafe charger. It is well made, locates well with a strong magnet and doesn’t get hot, just sometimes warm. Best of all it does what it is supposed to and charges quickly. Don’t expect multiple charges on an iPhone 17 as it is only a smaller capacity but does what it does well - a low profile, well made made low profile MagSafe charge to get you out of trouble. Recommended.

### ⭐⭐⭐⭐ Almost a perfect product
*by B***N on 20 November 2024*

This power bank has many positive features. For example, it provides very fast charging speeds, which is useful when you need to quickly charge in a short space of time. It also is very easy to use and works well, turning on as soon as it comes into contact with an iPhone. and comes with very clear instructions on how to use the product and what the lights mean. The capacity of 5000mah is enough for normal usage and allows an iPhone to be charged enough to get you through the day. It doesn’t get too hot when charging; it just gets moderately warm, which is good compared to most other MagSafe power banks that I have tried. The design looks very good, with a nice clean design. It feels very high quality and well designed. It also is fairly light and doesn’t add too much extra weight to your phone. However, there are some things I don’t like about it. Firstly, the size. It is a fairly chunky product. Granted it is slimmer than a lot of other MagSafe power banks, but I was personally looking for a very slim one, and this wasn’t quite slim enough. The size of this product can be seen in the photos (with iPhone 13 Pro for reference) Secondly, the button. The power button on the side of the product is slightly loose. This doesn’t sound like a big deal, but when you receive a notification, you notice it. It just makes the product feel a little cheap, even though every other aspect of it is amazing. Overall, I would still recommend this product, although the button is something I would like to see improved upon in the future as it is a little annoying.

## Frequently Bought Together

- ESR for MagSafe Power Bank, 0.55 in Ultra-Compact 5,000mAh MagSafe Portable Charger, Qi2 Certified 15W Ultra-Fast Battery Pack, 20W USB-C MagSlim Charger with Cable for iPhone 16/15/14/13/12, Black
- ESR for MagSafe Sticker 360, MagSafe Ring Magnet, 2 Pack Magnetic Ring, Universal Magnetic Wireless Charger Conversion Kit for iPhone 16/16e/15/14/13/12/11, Galaxy S24/S23/S22 and More, Black
- ESR for Qi2 15W MagSafe Car Mount Charger with CryoBoost, Phone Cooling MagSafe Car Charger, Air Vent/Dashboard Wireless Charging for iPhone 16/15/14/13/12, Galaxy S25 Series, Fast Charger, Black

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**Shop now:** [https://www.desertcart.jp/products/670576051-esr-for-magsafe-power-bank-0-55-in-ultra-compact](https://www.desertcart.jp/products/670576051-esr-for-magsafe-power-bank-0-55-in-ultra-compact)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-07*