Buying Guide — March 2026
Best Power Banks for
Laptop Charging
USB-C power banks that actually charge laptops at full speed. From budget 65W to premium 200W — we tested them all.
What Wattage Does Your Laptop Need?
| Laptop | Charger | Min Power Bank | Recommended |
|---|---|---|---|
| MacBook Air M3/M4 | 35-67W | 45W | 65W+ |
| MacBook Pro 14" M3/M4 | 96W | 65W (slow) | 100W+ |
| MacBook Pro 16" M3/M4 | 140W | 100W (slow) | 140W+ |
| Dell XPS 13/15 | 45-65W | 45W | 65W+ |
| Lenovo ThinkPad X1 | 65W | 45W | 65W+ |
| HP Spectre x360 | 65W | 45W | 65W+ |
| Surface Pro/Laptop | 65W | 45W | 65W+ |
Top 5 Power Banks for Laptop Charging
#1🏆 Best Overall
UGREEN 25000mAh 200W
$90
4.8/5
Capacity: 25000mAh (92.5Wh)
Output: 200W total / 140W single
Laptops: All MacBooks, all ultrabooks
Airline: ✅ Under 100Wh
#2
Baseus 25000mAh 140W
$70
4.7/5
Capacity: 25000mAh (92.5Wh)
Output: 140W total / 100W single
Laptops: MacBook Pro 14", ultrabooks
Airline: ✅ Under 100Wh
#3
Anker Prime 20000mAh 200W
$110
4.7/5
Capacity: 20000mAh (71.4Wh)
Output: 200W total / 100W single
Laptops: MacBook Pro 14", ultrabooks
Airline: ✅ Under 100Wh
#4
UGREEN 20000mAh 145W
$55
4.7/5
Capacity: 20000mAh (72Wh)
Output: 145W total / 100W single
Laptops: MacBook Air, ultrabooks
Airline: ✅ Under 100Wh
Laptop Power Bank FAQ
Can a power bank charge a laptop?
Yes — any USB-C power bank with 45W+ output and USB-PD can charge modern laptops. Match or exceed your charger wattage for full speed.
How many charges per power bank?
25,000mAh charges MacBook Air ~1.4x, MacBook Pro 14" ~1x, ultrabooks 1.2-1.5x. Account for 15% conversion loss.
What wattage do I need?
65W: most ultrabooks. 100W: MacBook Pro 14". 140W: MacBook Pro 16". Match your laptop charger wattage.
Can I use it on a plane?
Yes if under 100Wh (most 20-27K mAh models). Must be carry-on only, never checked bags.
How long to recharge the power bank?
25,000mAh: ~4h at 30W, ~2h at 65W, ~1.5h at 100W input.