The Anker 621 Magnetic Battery (MagGo) is a slim MagSafe-compatible power bank that snaps to the back of your iPhone for cable-free charging on the go.

Anker's MiniCell technology delivers the same charging performance with fewer components, making the 621 smaller and lighter than earlier magnetic batteries. Ultra-strong magnets snap it firmly to the back of an iPhone 13 or 12 and keep it perfectly aligned, so there are no disconnection issues from wireless misalignment — and you can still take selfies, make calls, and use your phone one-handed while it charges. Slim enough to slip into a pocket, purse, or pack.

Key Features

• MagSafe-compatible magnetic snap-on charging
• MiniCell technology for a smaller, lighter build
• Ultra-strong magnets keep perfect alignment
• Pocket-sized for charging on the go

Specs

• Type: magnetic wireless power bank (MagSafe-compatible)
• Compatibility: iPhone 12 and 13 series
• In the box: magnetic battery, 60 cm USB-C to USB-C cable, welcome guide, 24-month warranty

Frequently Asked Questions

Is it MagSafe compatible?
Yes — it snaps magnetically to the back of MagSafe iPhones (12 and 13 series) for aligned wireless charging.

Will it stay aligned while charging?
Yes — ultra-strong magnets keep it firmly attached and perfectly aligned, avoiding disconnection issues.

Can I use my phone while it charges?
Yes — it's slim and attaches securely, so you can take calls and selfies one-handed.

Which phones does it work with?
It's designed for the iPhone 12 and 13 series.