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Anker

Anker 621 MagGo Power Bank, 5,000mAh Magnetic Portable Charger

Based on 21,089 reviews
Condition: New
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$29.99
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Monday, Nov 2
Order within 3 hours and 32 minutes

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At a glance

Condition
New
Color
Black
Size
4.13 x 2.62 x 0.45 in
Model
A1610
Weight
4.96 oz
Connector Type
USB Type C
Battery Capacity
5000 mAh
Warranty
24-month warranty
Works with
iPhone 16/15 Plus/15 Pro/15 Pro Max/14/14 pro/13 Series, iPad,

Features 5

  • 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.)

Description

Why is my power bank providing fewer charges than expected? 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. How can I estimate the number of charges for my device? 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. Why does charging stop at 80%? 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. Why is my phone overheating? 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. Why is wireless charging slower than wired charging? 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. Anker Magnetic Battery Anker Nano Power Bank Anker MagGo USB-C Adapter Anker Zolo Power Bank Anker Zolo Power Bank Anker 10K MagGo Battery Anker 633Magnetic Battery

Specs 29

Connector Type USB Type C
Brand Anker
Battery Capacity 5000 mAh
Color Black
Special Feature Wireless Charging
Other Special Features of the Product Wireless Charging
Voltage 3.85 volts
Power Source Battery

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 2

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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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
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
Details on how to charge and use this battery
Color: Green Size: 4.13 x 2.62 x 0.45 inches
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. ... show more
Reviewed in the United States on July 8, 2025 by Joel
First impression
Color: Black Size: 4.13 x 2.62 x 0.45 inches
Just received this to replace another same type battery but that one would go on then just shut off for no apparent reason. I do have an IP-12 and i use a pretty heavy case so i wasn't sure how these type of batteries were going to work. I installed the metal ring on back of case and as it held battery ok it just wouldn't charge. So i bought this Anker to try it as i do like Anker batteries. Well right away it stuck right to my case and immediately started to charge. I was still skeptical. I just waiting to see if it shuts off and it never really did. Yes it gets warm just like the other battery, but that's the characteristic of this type of charging. But I have to tell you this thing grips much better than the other battery I had, maybe it has something to do with being a MagSafe battery I don't know that's why I wanted to try the Anker as its not a Magsafe but a Maggo and boast that it has a much stronger magnet, and I can Contest to that. It's not the fastest charger but it does charge. It is probably taking me an hour and a half hour to go from 60% to 95% for me that's OK. It's meant to be more of a rescue battery to basically get you through the rest of your day, my phone that has relatively small battery. This battery probably would charge it fully but The newer phones have larger batteries. This probably will maybe get you 80% which is just enough to get you through the rest of your day. Yes, heat is a factor and some people complain about it and some people understand It's a necessary phenomenon in this kind of charging, this case with the heat temperature gun i saw 134 degrees at its peak but it does go thru cycles of heat and cool as internal thermostat kicks in. To me thats a minor inconvenience, but it does not heat up your phone. The heat stays within the battery itself and it does not radiate to your phone. So far so good i using it now to write this and as the charge percent is not rising as fast as it did when I wasn't using the phone. It's basically holding the percent at one particular spot right now. So in closing, if you have a heavy duty case, try it, it might work get the rings and put them on the back of your case and see what happens. My rings came with a template which is not easy to use with a heavier case so what I did is I attach the ring to the actual battery And I moved the battery on the back of the case where I found a nice spot where the phone always went on charge every time I hit that spot and then I remove the plastic on the ring went back to push the battery down on that spot removed it push the ring down by hand make sure it was good And that's it, sometimes that's more accurate than using a template. I do agree that the thickness of the case plays a big roll in whether this will work or not, but what do you got to lose if it doesn't work you can return the battery or buy a new case that's thinner and will work better. ... show more
Reviewed in the United States on April 27, 2024 by D. E.
Good but with its quirks
Color: Blue Size: 4.13 x 2.62 x 0.45 inches
It gets a little warm and overhead easy as well as charging slow, but the low profile makes it very easy to just keep on the back of your phone. I liked it enough to give mine to my older mother, whose phone always dies and order myself a second.
Reviewed in the United States on October 2, 2026 by PT-Paul
Convenient Magnetic Charger That's Perfect for On-the-Go Charging
Color: White Size: 4.13 x 2.62 x 0.45 inches
The compact size is one of my favorite features. It easily fits in a purse, diaper bag, or pocket without adding much bulk. Despite its small size, it provides enough power to give my phone a much-needed boost when I'm away from an outlet. I also appreciate the built-in USB-C cable, which makes charging the power bank itself simple and helps reduce the number of cables I need to carry. The magnetic hold is strong enough for everyday use, and the overall quality feels exactly what I've come to expect from Anker products. ... show more
Reviewed in the United States on October 16, 2026 by Jolie
Charges Your Phone. Moonlights as a Hand Warmer.
Color: Black Size: 4.13 x 2.62 x 0.45 inches
This power bank drains faster than a toilet on the 25th floor, and charging the power bank itself feels like an overnight commitment. To be fair, it does charge my phone just fine. That part works exactly as advertised. My bigger issue is the heat. This thing gets noticeably warm while charging, which is not exactly the sensation I’m looking for from a lithium battery attached to the back of my phone. Would I use it around the house or in a pinch? Sure. Would I keep it attached to my phone on an airplane? Absolutely not. I have no interest in becoming the subject of an aviation safety briefing or the evening news. Functional, compact, and convenient. I just wish it had better battery life and ran a lot cooler. ... show more
Reviewed in the United States on September 27, 2026 by DAVID M.
Super convenient and compact
Color: Blue Size: 4.13 x 2.62 x 0.45 inches
Perfect for heavy phone users. I’m on my phone constantly, so having a reliable portable charger is really important to me. This has been super convenient. I love that it attaches directly to my phone magnetically, so I can keep using my phone while it charges without having to carry around a separate cable. It’s also compact and lightweight, which makes it easy to keep in my bag or carry around throughout the day. I’ve used it when my battery was getting low while I was out, and it gave me the extra charge I needed without being bulky. If you’re someone who is always on your phone and constantly worried about your battery dying, I definitely recommend this. It’s become something I like having with me whenever I leave the house. ... show more
Reviewed in the United States on September 4, 2026 by Luna SJ
I don’t regret most things, but I fear this was a waste of money. (Sorry for the long read)
Color: Black Size: 4.13 x 2.62 x 0.45 inches
I was between buying this and a mophie charging case. If I was going to buy this one, I was going to have to get a MagSafe case as I don’t have any. And with the new iPhone 17s out and my needing an upgrade on my phone. This portable charger seemed very promising with the amount of reviews it had and a 4+ star rating. And was cheaper than the mophie case, too! With all that being said, I decided purchasing this charger would be the best option. It was definitely the cheaper route even if I did have to buy a MagSafe case. No matter, I got an Anker case for about $20. And I would still be able to use the charger on my next phone. Now, I was in search of a portable phone charger/charging case as I was going to be going to Louder Than Life. For those that don’t know what that is, it’s a 4 day rock festival usually the last or second to last weekend of September in Louisville Kentucky. And as I mentioned, my phone needs an upgrade because on any regular day, I need to charge my phone by 1pm in the day. My phones battery life SUCKS. I purchase the charger about 5 days before I leave for the fest. It arrives the next day. I took it out, made sure everything was in there and went ahead and plugged it up so it could be fully charged. Charged it over night and the next day, around 1pm when I needed to charge my phone back up, I decided to use it. I was greatly disappointed to find that I had it charging for about an hour and it had barely powered my phone 10%. And at this point, I couldn’t really buy another charger for fear of it arriving after I left for the show. So instead, decided to put up and just go ahead and try and make do at the fest. Well, I get even more disappointed when using it at the fest. In kentucky, the weather can’t make its mind up to save its life. During the fest, the highs were 87-90 out. Pretty hot. But, I had gotten the top shelf vip and was able to have shaded areas and also very AC’d areas. Mind you, I only used the charger while outside in the shaded area. With nice wind flow and fans. On the first day of the 2 my husband and I went, I began using the charger at about 5pm. I had it on for an hour to two hours. And in those 1-2 hours, it had only charged my phone MAYBE 15% and had used over half of the portable batteries charge. I even had my phone on low battery mode. And not only that, it did cause my phone to be VERY hot. On the second day of the two me and my husband was there, I used the charger again about the same time but this time for only about 30-45 minutes. Still the same issue with how much the charger was actually charging my phone, but this time it caused my phone to pause charging till my phone cooled down. I was in literally the same spot I was in the previous day. So, it ended up turning it off and just taking it off my phone. Didn’t use it again till about 7:30 and used it when I wouldn’t be using my phone at all to record anything and charged it till the next band came on around 8:30. During that hour, I got a 10% charge. Also keep in mind, during the WHOLE time I was at the fest, my phone was in low battery mode. Idk if that makes a difference, but thought I’d add that. While it isn’t able to really charge your phone without over heating it, it does have a very strong magnetic grip. The one thing I didn’t like about the magnetic thing, and this just might be where I’ve never used a MagSafe portable charger and didn’t know that they do this, is that it kinda just swung around on the magnet. While using it, the charger would get crooked and I’d have to straighten it up. Or I’d put it in my purse and it’d be sideways on my phone. Again, that might be just a thing of MagSafe portable chargers and they all do it and not be something specific to this one. I be dumb sometimes lol. But I will say, I do like how slim it is. Not bulky and taking up a lot of room. I will also say that it’s quite durable. When we got home, my husband was trying to help get stuff out of the truck and it dropped out of my purse and was still good to go! Barely even scuffed up! Overall, I’m not quite sure this charger was worth it. Especially if it’s only providing 10-15% charge in 2 hours. I didn’t like chilling with my phone on 20% for hours all day. Especially in a big crowd like that when there’s chances of my husband and I getting separated and not being able to get back to him. And I also don’t like how hot it made my phone.. it can’t be good for the phone. So, just be weary! Heed the warnings! The AI generated review overview was correct! ... show more
Reviewed in the United States on September 21, 2025 by Kayla
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