Budget pick
Best Power Bank Under $100: Laptop-Ready Portable Power
Under $100, power banks move from phone top-ups to laptop-capable travel power. Higher-wattage USB-C ports, larger capacities and smart displays make them useful for work trips, festivals and long flights.
What $100 realistically buys
Expect 20,000 to 27,000 mAh capacity, USB-C Power Delivery output of 65 to 140 W on at least one port, two or three outputs and fast input charging. Many include displays showing remaining charge and live wattage.
Who this tier is for
Laptop users who travel or work away from outlets, handheld gamers and families charging several devices on long journeys. For phones only, a smaller bank is lighter and cheaper.
Pros: what this budget gets right
- Laptop charging: enough wattage for many laptops while in use.
- Multi-device output: charge a laptop and phone together.
- Fast recharge: high-wattage input refills the bank in a few hours.
- Useful displays: see exactly how much power is flowing.
Cons: where power banks at this price cut corners
- Weight: high-capacity banks often weigh a pound or more.
- Shared output: total wattage drops when several devices are connected.
- Airline limits: larger banks approach the common 100 Wh carry-on limit.
How this tier differs from under $50
Our power banks under $50 guide covers phone-focused banks with lower output. This tier pays for wattage and capacity to keep laptops running. Handheld gamers should also read our power bank for Xbox Ally guide, and for home outages see power bank vs UPS.
Checking laptop compatibility
Compare your laptop charger's wattage with the bank's per-port output, and use an e-marked cable rated for the wattage. If the bank supplies less than your laptop's charger, it may only slow battery drain during heavy use rather than charge it.
Safety
Buy from established brands with protection against overheating and short circuits, and stop using any bank that swells or gets unusually hot.
Air travel
Check the Wh rating printed on the bank; most airlines allow up to 100 Wh in carry-on luggage without approval.
Verdict: when to stretch or save
Choose this tier if you need to charge a laptop away from outlets. Save with an under-$50 bank for phones and earbuds. Stretch to a portable power station for multi-day trips and AC devices.
Want the full checklist, price tiers and FAQs? Read our power banks buying guide.