Anker 20K 87W Power Bank
Top PickWhat We Like
- Laptop-class 87W total output
- Built-in USB-C cable stays with the pack
- Compact enough for a backpack pocket
- Three ports cover phone, tablet, and earbuds
Worth Noting
- Long-term battery and cable life can fall short
- Heavier than a phone in a pocket
- Ports
- 3 ports + built-in USB-C cable
- Weight
- 15.2 oz
- Capacity
- 20,000 mAh
- Max Output
- 87W total; 65W single device
The built-in USB-C cable is the first thing we show people when they ask why this Anker is our default. It lives in the pack, so there's no loose cord to forget, and the 87W total output gives a single device up to 65W—enough to top up a small laptop, not just a phone. With three ports and a 20,000mAh capacity, it covers a phone, earbuds, and a tablet on a weekend away without turning into a brick.
We like the size as much as the power. At 6.2 by 2.9 by 1.0 inches and 15.2 ounces, it slips into a backpack pocket and doesn't make us choose between the charger and a water bottle. That balance is why it beats the bigger Anker 25K for everyday carry: the 25K carries more capacity and dual cables, but it's a heavier pack for laptop-heavy days. If you mostly charge a phone and one accessory, this is the one we reach for.
If your trips involve a laptop plus a tablet and you want a bigger reserve, the Anker 25K is the better fit; for phone-first travel, the 20K is easier to live with. It's the pack we leave by the door because it covers the most common days without a packing debate.
Bottom line: For most travelers, this is the high-capacity pack we recommend: 20,000mAh, laptop-class 87W output, and a built-in USB-C cable that stays with the pack.