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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

  • Based on 16,701 reviews
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Monday, Mar 23
Order within 10 hours and 13 minutes
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Color: Black


Size: 4.13 x 2.62 x 0.45 inches


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 98-118F when the ambient temperature is 77F. 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.

Connector Type: USB Type C


Brand: Anker


Battery Capacity: 5000 Milliamp Hours


Color: Black


Special Feature: Wireless Charging


Product Dimensions: 4.13 x 2.62 x 0.45 inches


Item Weight: 5 ounces


Item model number: A1610


Batteries: 1 C batteries required.


Date First Available: August 9, 2022


Manufacturer: Anker


Language: English


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Compact, Portable, No Wires, Gets Hot!
Color: Black Size: 4.13 x 2.62 x 0.45 inches
Review Image by S. Moore S. Moore
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. ... show more
Reviewed in the United States on June 19, 2025 by S. Moore S. Moore
    • Serves its purpose!
Color: Black Size: 4.13 x 2.62 x 0.45 inches
Review Image by Aathreya G Aathreya G
Review Image by Aathreya G Aathreya G
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.
Reviewed in the United States on February 26, 2026 by Aathreya G Aathreya G
    • High Temp when using
Color: Green Size: 4.13 x 2.62 x 0.45 inches
Review Image by Miggs Miggs
: UPDATE 3/11/2026 - Anker absolutely honored their commitment to their product and issued me a replacement. They were quick to respond and to mitigate the issue I had with their product. Thank you ANKER!! I’m a huge Anker fan and a loyal consumer of their products, so this is the first time I’ve encountered an issue with one of their products. The charging itself works fine, the problem is that the magnetic charger gets very hot, which disrupts charging until the temperature drops. I have another brand with the same specs that doesn’t have this issue. ... show more
Reviewed in the United States on March 6, 2026 by Miggs Miggs
    • Cute and compact, power bank holding charge is disappointing
Color: Purple Size: 4.13 x 2.62 x 0.45 inches
Technology is being changed with the way they're charged and having to buy different cables for different products has gotten so annoying. Thank goodness for magnetic chargers and adapters. I love Anker products, however this one I will say was a bit disappointing, which is why I only gave it 4 stars. I bought the pastel purple one and thought it was a good size for portability and for my small purse. It is fairly light and compact which is nice. I'm a pretty big klutz when it comes to dropping things, but I have not dropped this yet. I hope I don't, but I know their products are fairly durable. It sticks very well to my phone and it does not fall off if you shake it so you know it won't fall off. Some cons about it that I have noticed is that it does heat up a bit while it is charging and it does charge quickly. However, even though you charge the charging bank and it is full (looking at the light indicator), by the time your phone is charged up to 80%, the light indicator only has about one or two left. If you want to use it if your phone is completely dead, it will charge it, but I think that it won't fully charge it which is disappointing. I have another bulkier portable power bank of a different brand and that one doesn't even use up that much charge in one go. It's still good and it does the job, but it's a bummer that I won't be able to get a full charge on my phone if I needed it to. ... show more
Reviewed in the United States on February 21, 2025 by Jeannie
    • Forgot your phone cord charger..no problem..
Color: Green Size: 4.13 x 2.62 x 0.45 inches
So handy to use if you forget your charging cord..it seems to charge phone quickly..you do have to charge the portable charger between each phnoe charging..for me it’s not a big deal..
Reviewed in the United States on March 11, 2026 by Colleen McKinstry
    • Great Charger
Color: Black Size: 4.13 x 2.62 x 0.45 inches
works exactly as described. clicks right on to the back and starts charging, no more messy chords. This fits right on my phone while traveling
Reviewed in the United States on March 16, 2026 by TommyG265
    • Good for short use but not a long haul charger
Color: Purple Size: 4.13 x 2.62 x 0.45 inches
The size is perfect for travel as it’s not too heavy and is pretty thin. However, charging time isn’t fabulous and I only get one charge. If my phone were to die, I don’t think this would give me a full charge. I bought to take on a cruise as there usually aren’t outlets by the bed. Typically would start charging my phone at 30% and by the time it got to 90% the battery pack would be dead. Will keep for random occasion but not the best option. ... show more
Reviewed in the United States on March 5, 2026 by Madison Martin

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