Top 5 Power Banks
on Amazon
Low battery, long day? We compared the 5 best power banks on Amazon, from magnetic iPhone packs to 20,000 mAh bricks.
- Owner reviews checked
- Features side by side
- Quick & easy compare
- Smarter purchase
Compare them side by side
Everything that matters, in one table. Swipe to see all 5.
| Product | Best Overall Anker Nano 45W 10,000 mAh power bank |  Best Value Anker Nano 30W 10,000 mAh power bank |  Best for Families Charmast 10,000 mAh Power bank with cables |  Best Magnetic Anker 621 MagGo Magnetic wireless power bank |  Most Capacity Amazon Basics 20,000 mAh High-capacity power bank |
|---|---|---|---|---|---|
| BeastScore | 92 / 100 | 88 / 100 | 85 / 100 | 84 / 100 | 83 / 100 |
| Best for | Fast charging on the go | Everyday carry | Charging several phones at once | iPhone users (MagSafe-compatible) | Trips and multiple full charges |
| Capacity | 10,000 mAh | 10,000 mAh | 10,000 mAh | 5,000 mAh | 20,000 mAh |
| Max output | 45W (USB-C) | 30W | See listing | Wireless (magnetic) | See listing |
| Built-in cable | Yes, retractable USB-C | Yes, USB-C | Yes: USB-C, iPhone and Micro-USB | No (cable included) | No (USB-C cable included) |
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All 5 compared, in one look
See every pick on one chart, or tap one to put it head to head with Anker Nano 45W. Bigger shape = better.
- CapacityAmazon Basics 20,000 mAh · 9.6
- SpeedAnker Nano 45W · 9.4
- PocketableAnker 621 MagGo · 9.8
- PortsCharmast 10,000 mAh · 9.8
- ConvenienceAnker 621 MagGo · 9.6
- ValueCharmast 10,000 mAh · 9.3
Anker Nano 45W
Fast, small, and the cable is built in, so you never forget it.
- 45W fast charging
- Built-in cable
- Live battery display
Quick tips before you buy
Enough for a long day. Pick 20,000 mAh for trips.
Lower output charges modern phones slowly.
You will never leave home with a power bank and no cable.
Power banks must go in carry-on bags, not checked luggage.
Quick answers
How many times will a 10,000 mAh power bank charge my phone?+
Usually about 2 times for most phones, a bit less for phones with very big batteries, because some energy is lost as heat.
Are magnetic power banks slower?+
Yes. Wireless charging is slower and less efficient than a cable, but it is very convenient for quick top-ups on iPhone.
Can I bring a power bank on a plane?+
Yes, in your carry-on bag. Everything in this list is well under the common 100 Wh airline limit.
Can a power bank charge a laptop?+
Only if it has enough USB-C output. The 45W Anker Nano can top up many small laptops; the others are best for phones.