Which Anker Power Bank Is Best For Charging Multiple Devices?

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With most power banks, you're lucky if you can charge your phone once or twice. The capacity is only large enough for a quick emergency power-up. But that's not really acceptable if you have multiple devices, like a laptop, phone, and Steam Deck. If you want to charge all those devices with a single power bank, you'll need to choose carefully. The mAh number, or capacity, is the key to finding a suitable option. Anker, for example, has many portable power devices to choose from, but to charge multiple gadgets, look for banks with at least 20,000 milliampere-hours (mAh), which equals 74 watt-hours (Wh).

The maximum you can carry on a plane per bank is 100 Wh, which puts the sweet spot between 20,000 and 26,000 mAh — or 96 Wh — with the top end of that range being enough for roughly three to four full phone charges, approximately two tablet charges, or one full laptop charge for a modern system.

Put all of that together, and the ideal choice from Anker is the Prime Power Bank with a 26,250 mAh capacity. It delivers up to 300 watts of total output and can handle up to 140 watts of fast charging for phones, laptops, and high-power devices. It has enough ports and enough power to fast-charge up to three devices at once. Anker claims it can charge two MacBook Pros and an iPhone at the same time. At $230, it's not cheap, but for its capacity, it's quite reasonable. It also has strong owner ratings, with a 4.6-star rating on Amazon across over 1,800 user reviews.

For starters, the 26,250 mAh capacity is plenty, so whether you're at the airport or at work, you have enough power for your arsenal of gadgets. It's not so bulky that you'll feel bogged down, either. It weighs just 1.32 pounds and has the profile of a 20-ounce water bottle. It should fit in any backpack, handbag, or luggage without a fuss. It's also small enough to sit on an airplane tray and TSA-friendly, so you can take it traveling. It also includes safety features like Anker's ActiveShield 4.0 technology, which monitors temperature and scales back power to reduce heat as needed.

It has three ports, two USB-C and one USB-A, plus a smart front display and mobile app sync. But the multi-port charging support and the high capacity are the real draw. You can also plug it into two outlets via two ports, with up to 250 watts of max power input to charge it much faster.

If you want alternatives, Anker's 25,000 mAh Laptop Power Bank for $120 is a solid option, but for a smaller capacity, the Anker 20,000 mAh power bank for $70 also supports simultaneous fast charging. Beyond power banks, Anker has plenty of low-cost gadgets under $50 worth considering, especially if you move around a lot. If you're wondering about the brand's reputation, Anker is also well known for high-quality accessories that often outperform competing products. For the most part, you're in good hands. Consumer Reports' top picks include the Anker Prime and a few others from brands like Belkin and INIU.

Anker lists compatible devices on its product page, including MacBook Air and Pro, Dell XPS models, Microsoft Surface, iPhones, Samsung Galaxy Series, Nintendo Switch, Steam Deck, AirPods, and drones like the DJI Mavic 3. 

But to better understand capacity, many newer smartphones like the Samsung Galaxy S26 Ultra or iPhone 18 Pro have a 4,000 mAh to 5,000 mAh battery. Anker's Prime Bank, with 26,250 mAh, could charge those devices about four or five times before needing a recharge. If your phone has a smaller battery, it can charge it more often.

The Steam Deck LCD has a 5,200 mAh battery, while the OLED model has a 6,470 mAh battery — Anker's Prime bank could charge those four to five times. The Nintendo Switch (original and OLED models) has a 4,310 mAh battery, so it could provide around the same number of charges. Most laptop batteries are between 50 Wh and 80 Wh, or 5,000 mAh to 7,200 mAh. At the high end of that range, or any higher, you'd get about one to two full charges. But remember, when you're on the go, you don't necessarily need to charge your devices from empty every time. You might plug one or two in for a quick top-up when they're only depleted halfway or less. Also, if you plug in a handful of those devices at the same time, you'd get mainly one full charge for each and then some.