---
product_id: 464158830
title: "Anker 621 Magnetic Portable Charger (MagGo), 5,000mAh Wireless Power Bank with USB-C Cable, Magsafe-Compatible Battery Pack for iPhone 16/15/14/13/12 Series"
brand: "anker"
price: "€ 64.46"
currency: EUR
in_stock: true
reviews_count: 9
category: "Anker"
url: https://www.desertcart.gr/products/464158830-anker-621-magnetic-portable-charger-maggo-5-000mah-wireless-power
store_origin: GR
region: Greece
---

# Compact 4.13×2.62×0.45 in 5,000mAh capacity Ultra-strong magnetic attachment Anker 621 Magnetic Portable Charger (MagGo), 5,000mAh Wireless Power Bank with USB-C Cable, Magsafe-Compatible Battery Pack for iPhone 16/15/14/13/12 Series

**Brand:** anker
**Price:** € 64.46
**Availability:** ✅ In Stock

## Summary

> ⚡ Snap, Charge, Go — Power that sticks with you!

## Quick Answers

- **What is this?** Anker 621 Magnetic Portable Charger (MagGo), 5,000mAh Wireless Power Bank with USB-C Cable, Magsafe-Compatible Battery Pack for iPhone 16/15/14/13/12 Series by anker
- **How much does it cost?** € 64.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/464158830-anker-621-magnetic-portable-charger-maggo-5-000mah-wireless-power)

## Best For

- anker enthusiasts

## Why This Product

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

## Key Features

- • **Cable-Free Freedom:** Eliminate tangled wires—just snap it on and power up anywhere, anytime.
- • **Pocket-Sized Powerhouse:** Sleek, lightweight design fits effortlessly in your daily carry.
- • **MiniCell Tech Efficiency:** Delivers full charging performance with fewer components, making it smaller and lighter than ever.
- • **Trusted Anker Reliability:** Backed by a 24-month warranty and renowned build quality for peace of mind.
- • **Magnetic Snap-On Convenience:** Securely attaches to iPhone 12-16 series for seamless wireless charging on the go.

## Overview

The Anker 621 Magnetic Portable Charger (MagGo) is a compact 5,000mAh wireless power bank designed for iPhone 12 through 16 series. Utilizing advanced MiniCell technology, it offers full charging performance in a pocket-sized form factor with ultra-strong magnets for secure attachment. This Magsafe-compatible charger delivers convenient cable-free power on the move, backed by Anker’s trusted 24-month warranty and customer support.

## Description

Buy Anker 621 Magnetic Portable Charger (MagGo), 5,000mAh Wireless Power Bank with USB-C Cable, Magsafe-Compatible Battery Pack for iPhone 16/15/14/13/12 Series: Portable Power Banks - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Compact, Portable, No Wires, Gets Hot! - This was my first Magsafe battery. I had some older Qi wireless chargers and was familiar with heating issues. But these were older and lower power. Without the Magsafe feature, they were finicky and fussy and didn't properly fit around camera lens protrusions. I barely used these devices. This Anker 621 has a lot of promise. The Magsafe feature locks tight and the dimensions do not interfere with the camera protrusions, even with a case on the phone. It's compact and slim, and most importantly, does not require wires. It can be easily carried in a backpack or pocket without an accessory bag for wires and cables. When I first unpacked the battery, I fully charged with with a USB-C PD charger. It charged at 1A/5V. I used it to inductively charge my iPhone 14 Pro intermittently over the next few days. After about 10% charge, I determined the heat buildup to be intolerable. Therefore, I only used the pack intermittently. That worked fine for me over several days. When the battery was empty, it took 20Wh to fully charge. The battery was advertised for 5000mAh, which is impossible to measure without disassembling the unit. However, we can calculate 20Wh / 5V / 0.9 = 4400mAh (where 0.9 is the efficiency of the voltage converter for USB). This is below advertised capacity, but there’s a lot of assumptions in the conversion. Then I used a USB-C cable to charge my iPad Mini. It transferred 14.8Wh at about 9 Watts before exhausting. The round-trip efficiency was high, because recharging took 14.8Wh to fully recharge. I suspect I didn’t get the full 20Wh capacity with the iPad because the higher charge demand choked the battery before it could get fully empty. Using the inductive charge mode, both devices get hot relatively quickly. The switching power electronics get particularly hot. I can easily feel where the transistor is located beneath the plastic shell. The inductive transmitter loop gets warm on the battery and the receiver loop gets warm on the phone. Lithium-ion batteries degrade proportionally to temperature (the Arrhenius relationship), accelerating +25% degradation rate for every 10C, this is bad for the phone. In summary, • The battery delivers 20Wh of energy. If using inductive (Qi and Magsafe), much of the energy is converted to heat, so perhaps only 10-15Wh is actually delivered to the battery. • If using high-current devices using a charge cable, such as an iPad, the high current chokes the battery a bit early, stopping at 15Wh. • My back-of-the-envelope calculation shows 4400mAh vs. rated 5000mAh. I suspect the battery is not delivering rated capacity. Anker should be rating these batteries in Joules (watt-hours) instead of Coulombs (ampere-hours). • Inductive charging is inefficient, losing a quarter to half of energy to heat. This is not Anker’s fault but a result of real-world physics. With my iPhone 14 Pro, I saw about 10C rise per 10% of battery charge. I never let it progress beyond this point. • Lithium-ion batteries accelerate aging degradation due to the Arrhenius relationship about +25% per 10C temperature rise. Therefore, prolonged use of inductive charging will ultimately age your battery prematurely. • This battery is very worthwhile because I don’t have to carry an accessory kit with wires to use. Just slap it on the back of the phone and go. Plus, if frees the connector to use with wired headsets when using.
Review: Serves its purpose! - Really good product. Delivered without damage and the build quality of Anker is great. Not too bulky! It gets heated a bit when overused, but the magnets are very strong! It always says slow charger while using this! Not even optimal speeds is concerning, but it saves the phone from shutting down.

## Features

- Smaller Than Ever: Anker's new MiniCell technology delivers identical charging performance with fewer components. This means it's smaller and lighter than ever before
- Pocket-Sized Power: At just 4.13 × 2.62 × 0.45" and 4.41 oz, it snaps to your phone and fits effortlessly into your bag, purse, or pocket
- Strong Attachment: Equipped with ultra-strong magnets that firmly attach to the back of the iPhone 15 or 14 so you can single-handedly take selfies, make calls, and more.
- Charge in a Snap: Align your iPhone and battery with a snap. Say goodbye to disconnection issues caused by wireless charging misalignment. （Note：It's normal for the power bank to reach temperatures between 98-118°F when the ambient temperature is 77°F. Rest assured, this device meets international safety standards for safe operation.）
- What You Get: Anker 621 Magnetic Battery (MagGo), 23.6 in (60 cm) USB-C to USB-C cable, welcome guide, worry-free 24-month warranty, and friendly customer service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B099284SRR |
| Batteries | 1 C batteries required. |
| Best Sellers Rank | #159 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #11 in Cell Phone Portable Power Banks |
| Customer Reviews | 4.3 4.3 out of 5 stars (18,256) |
| Date First Available | August 9, 2022 |
| Item Weight | 5 ounces |
| Item model number | A1610 |
| Language | English |
| Manufacturer | Anker |
| Product Dimensions | 4.13 x 2.62 x 0.45 inches |

## Product Details

- **Battery Capacity:** 5000 Milliamp Hours
- **Brand:** Anker
- **Color:** Black
- **Connector Type:** USB Type C
- **Special Feature:** Wireless Charging

## Images

![Anker 621 Magnetic Portable Charger (MagGo), 5,000mAh Wireless Power Bank with USB-C Cable, Magsafe-Compatible Battery Pack for iPhone 16/15/14/13/12 Series - Image 1](https://m.media-amazon.com/images/I/61BgnPuSS2L.jpg)

## Available Options

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

## Questions & Answers

**Q: Why is my power bank providing fewer charges than expected?**
A: The capacity reduction during charging is due to a 30% to 45% energy loss in the battery cells and conversion circuitry. Therefore, a fully charged Anker A1610 Battery (PowerCore 5K) offers an estimated 2,750mAh~3,250mAh to power devices.

**Q: How can I estimate the number of charges for my device?**
A: To estimate charging cycles, use these formula (Power Bank Capacity × 0.5) ÷ Device Battery Capacity ≈ Number of Charges. For instance, charging a 3,000mAh device using a 5,000mAh Wireless power bank would offer approximately 0.83 charges.

**Q: Why does charging stop at 80%?**
A: Your iPhone may automatically stop charging at 80% to protect its battery from overheating, as part of iOS 17's thermal management strategy. Charging will resume once the device cools down. Moving it to a cooler spot can help speed up this process.

**Q: Why is my phone overheating?**
A: It's normal for the power bank to reach temperatures between 98-118°F when the ambient temperature is 77°F. Rest assured, this device meets international safety standards for safe operation.

**Q: Why is wireless charging slower than wired charging?**
A: Wireless charging uses coil coupling technology, which is less efficient under the same power conditions. For faster charging, use a wired connection. To improve wireless charging speeds, minimize phone usage and close high-power apps while charging.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Compact, Portable, No Wires, Gets Hot!
*by S***E on June 19, 2025*

This was my first Magsafe battery. I had some older Qi wireless chargers and was familiar with heating issues. But these were older and lower power. Without the Magsafe feature, they were finicky and fussy and didn't properly fit around camera lens protrusions. I barely used these devices. This Anker 621 has a lot of promise. The Magsafe feature locks tight and the dimensions do not interfere with the camera protrusions, even with a case on the phone. It's compact and slim, and most importantly, does not require wires. It can be easily carried in a backpack or pocket without an accessory bag for wires and cables. When I first unpacked the battery, I fully charged with with a USB-C PD charger. It charged at 1A/5V. I used it to inductively charge my iPhone 14 Pro intermittently over the next few days. After about 10% charge, I determined the heat buildup to be intolerable. Therefore, I only used the pack intermittently. That worked fine for me over several days. When the battery was empty, it took 20Wh to fully charge. The battery was advertised for 5000mAh, which is impossible to measure without disassembling the unit. However, we can calculate 20Wh / 5V / 0.9 = 4400mAh (where 0.9 is the efficiency of the voltage converter for USB). This is below advertised capacity, but there’s a lot of assumptions in the conversion. Then I used a USB-C cable to charge my iPad Mini. It transferred 14.8Wh at about 9 Watts before exhausting. The round-trip efficiency was high, because recharging took 14.8Wh to fully recharge. I suspect I didn’t get the full 20Wh capacity with the iPad because the higher charge demand choked the battery before it could get fully empty. Using the inductive charge mode, both devices get hot relatively quickly. The switching power electronics get particularly hot. I can easily feel where the transistor is located beneath the plastic shell. The inductive transmitter loop gets warm on the battery and the receiver loop gets warm on the phone. Lithium-ion batteries degrade proportionally to temperature (the Arrhenius relationship), accelerating +25% degradation rate for every 10C, this is bad for the phone. In summary, • The battery delivers 20Wh of energy. If using inductive (Qi and Magsafe), much of the energy is converted to heat, so perhaps only 10-15Wh is actually delivered to the battery. • If using high-current devices using a charge cable, such as an iPad, the high current chokes the battery a bit early, stopping at 15Wh. • My back-of-the-envelope calculation shows 4400mAh vs. rated 5000mAh. I suspect the battery is not delivering rated capacity. Anker should be rating these batteries in Joules (watt-hours) instead of Coulombs (ampere-hours). • Inductive charging is inefficient, losing a quarter to half of energy to heat. This is not Anker’s fault but a result of real-world physics. With my iPhone 14 Pro, I saw about 10C rise per 10% of battery charge. I never let it progress beyond this point. • Lithium-ion batteries accelerate aging degradation due to the Arrhenius relationship about +25% per 10C temperature rise. Therefore, prolonged use of inductive charging will ultimately age your battery prematurely. • This battery is very worthwhile because I don’t have to carry an accessory kit with wires to use. Just slap it on the back of the phone and go. Plus, if frees the connector to use with wired headsets when using.

### ⭐⭐⭐⭐⭐ Serves its purpose!
*by A***G on February 26, 2026*

Really good product. Delivered without damage and the build quality of Anker is great. Not too bulky! It gets heated a bit when overused, but the magnets are very strong! It always says slow charger while using this! Not even optimal speeds is concerning, but it saves the phone from shutting down.

### ⭐⭐⭐⭐⭐ Details on how to charge and use this battery
*by J***L on July 8, 2025*

Before ordering I had struggled to get answers to some basic questions about how this battery works, so now that I have it in hand I'm hoping these tips are useful: - The battery charges the phone wirelessly when the battery is attached to the phone magnetically and turned on. - While the phone and battery are attached the power moves in only one direction from the battery to the phone. The battery doesn't charge wirelessly when attached to a phone even if the phone is plugged in. - The battery must be charged independently of the phone. It can be charged either by plugging a USB-C cable into it directly or by putting it on any wireless charging pad. - You CAN plug a USB-C cable directly into the battery to charge it while it's attached to the phone and while it's actively charging the phone. It's possible this isn't recommended, but it does appear to work. - The battery blocks the phone's Magsafe charging area while it's attached to the phone, but the phone can still be charged directly via USB-C with the battery attached. - The battery can't be charged wirelessly while attached to a phone since it must be placed Magsafe-down onto a wireless charging pad. - The battery just barely fits into the space between the camera protection area and the bottom edge of a standard phone case with very little room to spare. The magnets are very effective, though, and it stays firmly attached to the phone. - A short USB-C cable is provided, but you need to provide a USB AC charger or wireless charging pad.

## Frequently Bought Together

- Anker 621 Magnetic Portable Charger (MagGo), 5,000mAh Wireless Power Bank with USB-C Cable, Magsafe-Compatible Battery Pack for iPhone 16 /15/14/13/12 Series
- Anker USB C to USB C Cable, Type-C 60W Fast Charging Cable (6FT, 2Pack) for iPhone 16 Series, iPad mini 6 and More (Black)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-10*