
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
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AI Verdict
A 5,000mAh MagSafe-compatible power bank with USB-C for iPhone 12-16 users needing a compact, partial charge.
This 5,000mAh magnetic power bank is designed for MagSafe-compatible iPhones (12 series and newer), offering a compact and convenient way to add a partial charge. Its small size makes it easy to carry, but the actual usable capacity is closer to 3,000-3,500mAh, meaning it won't fully recharge most modern iPhones.
If you need more than one partial charge or faster charging, look for power banks with higher mAh ratings (e.g., 10,000mAh or more) and higher wireless charging wattage (e.g., 15W Qi2).
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Pros
- Compact size due to Anker's MiniCell technology.
- Strong magnetic attachment to iPhone 12-16 series.
- Includes a 23.6 inch (60 cm) USB-C to USB-C cable.
- Backed by a 24-month warranty.
- Snaps to phone, preventing wireless charging misalignment.
Cons
- Actual usable capacity is around 3,000-3,500mAh, not the advertised 5,000mAh.
- Experiences heating during use, which can reduce charging speed.
- Wireless charging is slower than wired options, often 7.5W max for iPhones.
- Magnetic strength can be insufficient with some phone cases, leading to disconnections.
Dimension Scores
Wireless charging is typically limited to 7.5W for iPhones, which is slower than many wired options and can be reduced further by heat.
Anker products generally receive positive feedback for durability, and there are no widespread complaints about the physical construction.
It's specifically designed for MagSafe-compatible iPhones (12 series and newer) for magnetic wireless charging, limiting its universal wireless use.
Anker's MiniCell technology makes it smaller and lighter than previous models, designed to be pocket-sized.
Best For
- iPhone 12-16 users needing a quick power boost during the day.
- Travelers who want a small, magnetic battery for their phone.
- People who want to charge their iPhone wirelessly without cables.
Not Recommended For
- Users needing multiple full charges for their iPhone.
- Anyone without a MagSafe-compatible iPhone (12 series or newer).
- Users who prioritize fast wired charging for all devices.
Watch Out For
- The 5,000mAh capacity provides only about 3,000-3,500mAh of usable charge to devices due to efficiency losses.
- Product can get warm during charging, leading to reduced charging speeds to protect the phone's battery.
- Magnetic connection strength can be weak with certain phone cases, causing the pack to detach easily.
- Wireless charging speeds are typically limited to 7.5W for iPhones, which is slower than many wired alternatives.
Full Specifications
| ASIN | B099VV9Z98 |
| Brand | Anker |
| Color | Blue |
| Batteries | 1 C batteries required. |
| Item Weight | 4.5 ounces |
| Manufacturer | Anker Innovations Limited |
| Connector Type | USB Type C |
| Special Feature | Wireless Charging |
| Battery Capacity | 5000 Milliamp Hours |
| Item model number | A1610031 |
| Product Dimensions | 4.33 x 4.33 x 2.56 inches |
What Buyers Say
Many users are surprised by the actual usable capacity, finding that the 5,000mAh rating translates to roughly 3,000-3,500mAh of charge delivered to their iPhone, often not enough for a full recharge. The convenience of the magnetic attachment is a frequent highlight, but some report issues with the magnet's strength when using certain phone cases, leading to accidental disconnections. Heating during charging is also a common observation, sometimes causing the phone to slow down charging to protect its battery.
“Honestly, it's super handy for a quick top-up when I'm out, but don't expect it to fully charge your iPhone 14 Pro Max from zero, and yeah, it gets kinda toasty sometimes.”
Common Praise
- Snaps securely to the back of MagSafe iPhones, preventing misalignment.
- Compact and lightweight design makes it easy to carry in a pocket or purse.
- Convenient for adding a quick power boost without needing cables.
- Anker's reputation for product quality and a 24-month warranty.
Common Complaints
- Actual charge delivered is significantly less than the stated 5,000mAh, often only providing 55-65% of an iPhone's battery.
- Gets noticeably warm during wireless charging, which can trigger thermal throttling on the iPhone.
- Magnetic hold can be weak through some phone cases, causing the power bank to fall off.
- Wireless charging speed is slower than expected, especially compared to wired charging.
Ownership Tips
- The '5,000mAh' is more like a theoretical maximum, with real-world output closer to 3,000-3,500mAh due to conversion losses.
- Using a thin MagSafe-compatible case is crucial for a strong magnetic connection; thicker cases often lead to detachment.
- The heating is consistent, and while not dangerous, it does mean your phone might charge slower to manage temperature.
- It's best used for maintaining battery levels or getting a partial charge, not for bringing a dead phone back to 100% multiple times.
Frequently Asked Questions
Is it compatible with non-MagSafe iPhones?
No, it's designed for iPhone 12 series and newer with MagSafe for magnetic attachment and wireless charging.
How many charges can it provide?
With a 5,000mAh capacity, it typically provides about 0.7 to 1 full charge for most newer iPhones, as usable capacity is around 3,000-3,500mAh.
Does it come with a charging cable?
Yes, it includes a 23.6 inch (60 cm) USB-C to USB-C cable for recharging the power bank or wired charging other devices.
Does it get hot during use?
Yes, the product specs mention slight heating is normal due to efficiency losses in the conversion circuit, and user reports confirm it can get warm.
Can I charge other devices with it?
You can charge other devices via the USB-C port if they support USB-C charging, but wireless charging is exclusively for MagSafe iPhones.
Buying Guide
When looking at portable chargers like this, you're balancing capacity, size, and charging speed. A 5,000mAh rating doesn't mean you'll get 5,000mAh into your phone; there's always energy lost in the conversion. Magnetic chargers offer convenience but often charge slower than plugging in directly.
battery_capacity (5,000 Milliamp Hours)
This number tells you how much energy the power bank *holds*. Think of it like the size of a gas tank. However, not all that gas makes it to your car; some is lost as heat. For this 5,000mAh pack, expect about 60-70% of that to actually reach your phone.
connector (USB Type C)
This is the port type for both charging the power bank itself and for wired charging other devices. USB-C is becoming standard, so it means you likely only need one cable for many of your gadgets.
Magsafe-Compatible
This means it has magnets that align perfectly with iPhone 12 series and newer, allowing it to snap on and charge wirelessly without fiddling with cables. It's like having a built-in charger that just clicks into place.
Alternatives
If you need more than one full phone charge or faster wireless charging, look for power banks with 10,000mAh or higher capacity and those explicitly stating 15W Qi2 wireless output.



