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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

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

4.3(18K+ reviews, all variants)
budget$0-$491K+ bought in past month
#274 in Cell Phones & Accessories#20 in Cell Phone Portable Power Banks
mah
000mAh
usb c
USB-C
connector
USB Type C
battery capacity
5000 Milliamp Hours

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AI Verdict

This is a 5,000mAh MagSafe-compatible power bank for iPhone 12-16 series, best for quick, partial top-ups.

Situational Fit

This Anker 621 is a situational fit for iPhone users who need a compact, magnetic power bank for emergency top-ups. Its 5000mAh capacity, which delivers closer to 3000-3500mAh in practice, means it's not designed for full recharges. The 7.5W wireless charging is convenient but not fast.

If you need faster charging or a full phone charge, look for power banks with higher effective mAh capacity (e.g., 10,000mAh+) and explicit 15W Qi2 wireless charging or higher wired output.

Regret Score™

Low Risk

Lower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity

20/100
vs. 342 Phone Accessories we've analyzedSafer than 75%
Hidden Defects
8/35

Issues discovered after purchase

Achilles' Heel
0/25

Critically weak dimension

Expectation Gap
3/20

Amazon rating vs actual quality

Fit Risk
9/20

Chance this product isn't for you

BuyChoice Score
3.8

Pros

  • Compact size and lighter weight due to Anker's MiniCell technology, making it pocket-friendly.
  • Ultra-strong magnets firmly attach to the back of iPhone 15 or 14, preventing misalignment issues.
  • Includes a 23.6 inch (60 cm) USB-C to USB-C cable for charging.
  • Backed by a 24-month warranty, offering extended support.

Cons

  • Actual usable capacity is closer to 3000-3500mAh, not the advertised 5000mAh, due to conversion losses.
  • Wireless charging for iPhones is typically limited to 7.5W, which is not a fast charge.
  • Experiences slight heating during use, which is noted as normal but can be noticeable.
  • Lacks an integrated kickstand, which some competing MagSafe power banks offer.

Dimension Scores

Charging Speed5/10

Wireless charging for iPhones is limited to 7.5W, which is average for MagSafe but not fast compared to wired or Qi2 standards.

Build Quality7/10

Anker has a reputation for dependable quality, and the MiniCell technology contributes to a smaller and lighter design.

Compatibility8/10

Designed specifically for MagSafe-compatible iPhone 12-16 series, ensuring strong magnetic attachment and proper alignment.

Portability9/10

The MiniCell technology makes it smaller and lighter than previous models, described as 'tiny' and 'pocket-sized'.

Best For

  • iPhone 12, 13, 14, 15, or 16 series users needing a partial battery boost on the go.
  • Individuals who prioritize a slim, lightweight magnetic power bank for occasional use.
  • Travelers or commuters looking for a convenient way to extend iPhone battery life without cables.

Not Recommended For

  • Users expecting multiple full charges for their iPhone from a single power bank.
  • Anyone needing 15W or faster wireless charging speeds.
  • Android phone users without a MagSafe-compatible case, as magnetic attachment and wireless charging may be inconsistent.

Watch Out For

  • The 5000mAh capacity translates to only about 3000-3500mAh of usable charge for your phone, meaning it won't fully charge most modern iPhones.
  • The power bank can get noticeably warm during wireless charging, which is described as normal but can be uncomfortable.
  • Wireless charging speed is capped at 7.5W for iPhones, which is slower than wired charging or newer Qi2 standards.
  • While magnets are strong, some users might find the attachment less secure during vigorous activity.

Full Specifications

ASINB099YQFXM6
BrandAnker
ColorGreen
Batteries1 Lithium Polymer batteries required.
Item Weight5 ounces
ManufacturerAnker Innovations Limited
Connector TypeUSB Type C
Special FeatureWireless Charging
Battery Capacity5000 Milliamp Hours
Item model numberA1610
Product Dimensions4.13 x 2.62 x 0.45 inches

What Buyers Say

Many users grab this Anker 621 MagGo for its sheer convenience and compact form factor, finding it perfect for quick battery top-ups when they're out and about. The magnetic attachment is a big win for keeping it secure. However, a recurring complaint is that the 5000mAh capacity doesn't translate to a full phone charge in real-world use, often only providing a partial boost. Some also mention it gets warm during charging, which, while normal, can be a bit of a bummer.

“Ugh, it's so tiny and snaps right on, which is awesome for a quick boost, but seriously, 5000mAh sounds like a lot until you realize it barely gets my iPhone 15 Pro Max halfway charged. Still, it's better than nothing when I'm out!”

Common Praise

  • Small and lightweight design makes it easy to carry in a pocket or purse.
  • Strong magnetic connection keeps it securely attached to the iPhone.
  • Convenient for quick, on-the-go battery boosts.
  • Rounded corners make it comfortable to hold when attached to the phone.

Common Complaints

  • The actual usable charge is significantly less than 5000mAh, often only providing a partial charge for iPhones.
  • The power bank can get quite warm during wireless charging.
  • Wireless charging speed is limited to 7.5W for iPhones, which feels slow to some users.
  • Some users wish for an even stronger magnetic hold or a way to permanently attach it.

Ownership Tips

  • Expect to get about 60-80% of a charge for most modern iPhones, not a full 100%, due to energy conversion losses.
  • The device will feel warm to the touch during wireless charging, especially during prolonged use.
  • The slim profile means it doesn't add much bulk when attached, making it comfortable to hold the phone.
  • The included USB-C to USB-C cable is useful for charging the power bank itself or for wired charging if needed.

Frequently Asked Questions

How many times will this charge my iPhone?

Due to conversion losses, the effective capacity is around 3000-3500mAh. This means it will provide a partial charge, typically 60-80% for most modern iPhones, not a full charge.

Is it compatible with my iPhone 15 Pro Max?

Yes, it is MagSafe-compatible with iPhone 12, 13, 14, 15, and 16 series, including Pro Max models. The strong magnets should attach firmly.

Does it support fast wireless charging?

For iPhones, the wireless charging speed is typically 7.5W, which is standard for MagSafe but not considered 'fast' compared to wired charging or newer 15W Qi2 wireless chargers.

Does it get hot during use?

Anker states that slight heating due to efficiency losses is normal. Some users report it getting noticeably warm, which can sometimes lead to reduced output.

Can I charge the power bank and my phone at the same time?

The product specifications do not explicitly mention pass-through charging. While some Anker MagGo models offer this, it's not guaranteed for the 621 based on available information.

Buying Guide

When you're looking at portable chargers, especially magnetic ones, you need to think about how much charge you actually need. The 'mAh' number is the battery's raw capacity, but you'll never get that full amount into your phone because of energy lost during conversion. Wireless charging is super convenient, but it's often slower than plugging in a cable, and it also generates more heat.

battery_capacity (5000 Milliamp Hours)

This number tells you the raw storage of the battery. For a 5000mAh power bank, expect to get roughly 60-70% of that into your phone due to energy loss, so it's usually enough for one partial charge, not a full one for most modern smartphones.

Magsafe-Compatible

This means it uses magnets to snap onto the back of your iPhone 12 or newer, ensuring perfect alignment for wireless charging and a secure attachment without needing a case. It's a convenience feature that makes charging effortless.

USB Type C connector

This is the modern standard for charging and data transfer. It means you'll likely use the same cable to charge the power bank as you do for many newer phones and devices, simplifying your cable management.

Alternatives

If you need to fully charge your phone multiple times or require faster wireless charging, look for power banks with 10,000mAh or higher effective capacity and explicit 15W Qi2 wireless charging support.

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