- Which is better for a weekend trip?
- The 20000mAh pack. Its double capacity covers two to four phone charges, while the Anker 10000 covers about one to two. The trade-off is 430 g in your bag.
- Which charges an iPhone faster?
- The 20000mAh pack, if you use a USB-C to Lightning cable. It supports PD 3.0 up to 22.5W. The Anker tops out at 2.4A over USB-A at 5V.
- Which is easier to carry every day?
- The Anker PowerCore 10000 Redux. It is small and light enough for a pocket. The 20000mAh pack is 7x3x1 inches and 430 g.
- Does either support wireless charging?
- No. Both charge over a cable only. The Anker listing mentions wireless charging, but its ports are USB-A and Micro-USB, so plan on a cable.
- Is the 20000mAh pack worth it over the Anker?
- Yes if you need capacity, USB-C PD, and a battery display. No if you want the lightest pack and trust Anker's 18-month warranty.
- How long do these packs last?
- Both use lithium-ion cells that lose capacity over hundreds of charge cycles. The Anker's 18-month warranty is the clearer coverage; the 20000mAh pack's warranty is not stated.