Portable power has come a long way. Today's best power banks are thinner, faster, and smarter than anything available just a few years ago — and the range of options can be genuinely overwhelming. At Velo Supply Company, we've narrowed it down to the models we think are worth your money in 2026, organized by what you actually need them for.
All of the picks below are from Anker, a brand we carry because of their consistent build quality, safety certifications, and real-world performance. Here's how they stack up.
Best for Power Users: Anker Prime Power Bank (27K, 250W)
Capacity: 27,650mAh | Flight-Approved: Yes
If you're running a laptop, tablet, and phone simultaneously and can't afford to slow down, the Anker Prime 27K is the one to get. It delivers up to 250W total output across its ports — enough to keep two MacBook Pros running at full speed at the same time.
What makes it stand out beyond raw wattage is the recharge speed. Using both USB-C ports together, it supports up to 250W input, so downtime between charges is minimal. The built-in smart display and companion app give you real-time visibility into what's happening — useful when you're managing multiple devices on a tight schedule. At 99.54Wh, it stays within airline carry-on limits.
This is a serious tool for serious users. If you're occasionally topping off a phone, it's overkill. But if you're working from airports, job sites, or anywhere without reliable outlets, it earns its place in your bag.
Best for Laptop Users: Anker Laptop Power Bank (25K, 165W)
Capacity: 25,000mAh | Flight-Approved: Yes
The Anker 25K Laptop Power Bank is built around a practical insight: most people forget cables. This one has two built-in USB-C cables — one extends to 2.3 feet for your laptop, and the shorter one doubles as a carrying strap. Add a USB-C port and a USB-A port and you can charge up to four devices at once without digging through your bag for adapters.
Each USB-C port delivers up to 100W individually, which covers fast charging for most modern laptops. The 165W combined output means you're not sacrificing speed when multiple devices are connected. A smart display shows charging speed, battery health, and temperature at a glance. Airline-approved and compact enough for daily carry.
Best Ultra-Slim Pick for iPhone: Anker Nano Power Bank (5K, MagGo Slim)
Capacity: 5,000mAh | Flight-Approved: Yes
At 0.3 inches thick, the Anker Nano 5K MagGo Slim is the most pocketable option we carry. It snaps magnetically to the back of a MagSafe-compatible iPhone and delivers 15W Qi2 wireless charging — fast enough to make a real dent in your battery during a commute or meeting.
Thin chargers often run hot, but Anker addressed this with graphene cooling and dual temperature sensors that keep the unit below 104°F during use. There's also a 20W USB-C port if you prefer wired charging. If you want the absolute minimum added bulk to your phone, this is the one.
Best Magnetic Power Bank for All-Day iPhone Use: Anker MagGo Power Bank (10K, Slim)
Capacity: 10,000mAh | Flight-Approved: Yes
If the 5K isn't enough to get you through a full day, the Anker MagGo 10K Slim doubles the capacity while staying at just 0.58 inches thick. It magnetically attaches to MagSafe iPhones, charges wirelessly at 15W Qi2, and can recharge your iPhone between 1.4 and 1.78 times depending on the model.
A backup cable is included for wired charging when you need faster top-ups. Built-in temperature protection keeps things safe during extended use. It's a clean, no-fuss option for iPhone users who want reliable all-day power without carrying a separate cable.
Best Everyday Carry: Anker Nano Power Bank (10K, 45W)
Capacity: 10,000mAh | Flight-Approved: Yes
The Anker Nano 10K is the one we'd recommend to most people. It's 16% smaller than comparable models, has a built-in 2.3-foot retractable USB-C cable, and delivers 45W output — fast enough to charge an iPhone 17 Pro in about 20 minutes.
It supports pass-through charging, so you can charge the power bank and your device at the same time from a single wall outlet. A light-sensitive display shows real-time battery status without being distracting. Airline-approved and genuinely pocketable — this is the one that earns a permanent spot in your everyday bag.
Best Balance of Power and Portability: Anker Prime Power Bank (20K, 220W)
Capacity: 20,000mAh | Flight-Approved: Yes
The Anker Prime 20K sits between the everyday carry and the heavy-duty 27K — and for a lot of people, it's the sweet spot. It's roughly the size of a soda can, stays under the 100Wh TSA limit at 72Wh, and delivers 220W total output across its ports.
That means you can fast-charge two laptops simultaneously at 100W each, or run a laptop alongside a phone and tablet without throttling. It recharges itself in about 75 minutes via USB-C, which is fast enough that you won't dread plugging it in overnight. Smart app control lets you monitor and adjust output behavior. A strong pick for frequent travelers who need serious power without serious bulk.
How to Choose the Right Power Bank
Before buying, it helps to think through a few basics:
Capacity (mAh): 10,000mAh handles daily phone use comfortably. Step up to 20,000mAh or more if you're charging laptops or multiple devices on longer trips.
Output wattage: Higher wattage means faster charging. Phones typically need 20–45W; laptops need 60–100W or more. Match the power bank's output to your device's requirements.
Compatibility: iPhone users with MagSafe should look at Qi2-compatible models. Laptop users need USB-C Power Delivery at the right wattage. Check your device specs before buying.
Portability: Slim designs are easier to carry but usually lower capacity. If you're choosing between two similar models, consider how often you'll actually have it with you — the best power bank is the one you bring.
Safety features: All Anker models we carry include overcharge protection, temperature control, and short-circuit safeguards. Avoid unbranded chargers that skip these protections.
Airline compliance: All six picks above are TSA carry-on approved. If you fly regularly, check the Wh rating — anything under 100Wh is generally permitted without airline approval.
Shop Power Banks at Velo Supply
All of the models above are available now at Velo Supply Company. If you're not sure which one fits your setup, reach out — we're happy to help you find the right match before you buy.
