Best Power Banks & Battery Packs: Top Picks

The best power bank for most people is the Anker PowerCore 10000 (or its newer 10K versions like the Nano or Slim) because it packs enough charge for a full phone top-up into a tiny, pocket-friendly body at a price that’s hard to beat. It balances capacity, portability, and reliability better than anything else. For those needing to charge laptops or multiple devices, the Anker 737 Power Bank (PowerCore 24K) is the top pick for its high wattage and clear display.

What to Look For

Before buying, focus on these five specs that actually matter:

• Capacity (mAh): This tells you how much charge the bank holds. A 10,000mAh bank roughly charges a modern phone 1.5–2 times; 20,000mAh handles 3–4 charges and can also power a tablet. For laptops, you need 20,000mAh or more.
• Output Power (W): Measured in watts, this determines how fast your devices charge. For phones, 18W–20W is plenty (iPhone fast charging is 20W, many Androids top out around 45W). For laptops, you need at least 45W–60W, ideally via USB-C Power Delivery (PD).
• Ports and Protocols: USB-C PD is the must-have. It charges both the power bank and your devices (including most modern laptops). USB-A ports are fine for older gadgets, but they won’t fast-charge modern phones. Look for a bank that supports Power Delivery (PD) and preferably PPS (Programmable Power Supply) for Samsung’s Super Fast Charging.
• Size and Weight: A 10,000mAh bank weighs around 200g (7oz). A 20,000mAh bank is double that. Consider whether you’ll actually carry it daily. A heavy bank you leave at home is useless.
• Pass-Through Charging: This lets you charge the power bank and your phone at the same time. It’s a convenience feature, not a deal-breaker, but nice to have when you’re near an outlet for a short time.

Top Picks

Anker PowerCore 10000 (or 10K Series)

Strengths: This is the gold standard for everyday carry. It’s small enough to slip into a jeans pocket, light enough to forget you have it, and still delivers 10,000mAh of reliable power. Anker’s build quality is consistently good, and the 10K series now includes USB-C PD versions (like the PowerCore 10K PD Redux or Nano) that charge your phone at 20W.

Trade-offs: Only one device at a time (some versions have two ports, but you’ll split power). It won’t charge a laptop. The 10K capacity is enough for a single phone top-up, not a weekend away.

Who it’s for: Commuters, students, and anyone who wants a reliable emergency charge without carrying a brick.

Anker 737 Power Bank (PowerCore 24K)

Strengths: This is the laptop-charging champion. With 24,000mAh and 140W total output (including 140W USB-C PD 3.1), it can charge a MacBook Pro at full speed while also topping up your phone. The built-in digital display shows remaining percentage and output wattage, which is genuinely useful. It’s a premium product that does almost everything.

Trade-offs: It’s heavy (about 1.4 lbs / 630g) and expensive. It’s overkill if you only charge phones.

Who it’s for: Travelers with laptops, content creators, and anyone who wants a single power source for all their gear.

Anker PowerCore 20K (or similar 20,000mAh banks)

Strengths: The sweet spot for most people. A 20,000mAh bank gives you multiple phone charges, can charge a tablet, and some versions (like the PowerCore 20K PD) offer 45W USB-C PD, which is enough for many ultrabooks. It’s still small enough to fit in a backpack pocket.

Trade-offs: Heavier than the 10K, and the 45W output won’t fast-charge larger laptops (like a 16-inch MacBook Pro). It’s a compromise between portability and power.

Who it’s for: Most people. If you’re unsure, this is the size to get.

UGREEN 145W Power Bank (25000mAh)

Strengths: A strong alternative to the Anker 737, often at a lower price. It offers 145W total output (with 100W USB-C PD) and a 25,000mAh capacity. It has a clear display and supports pass-through charging. UGREEN is a reputable brand.

Trade-offs: The 100W max output on a single port is slightly less than the Anker’s 140W. Build quality is good but not quite as premium.

Who it’s for: Laptop users who want a high-capacity bank without paying the premium for the Anker 737.

Baseus 65W Power Bank (20000mAh)

Strengths: An excellent budget option for laptop users. It delivers 65W USB-C PD, which charges most ultrabooks and even some gaming laptops. It has two USB-C ports and one USB-A, so you can charge multiple devices. It’s often available at a very attractive price.

Trade-offs: The 65W output is the ceiling—it won’t fast-charge a 16-inch MacBook Pro. The build quality is decent but not as rugged as Anker’s. Some users report the display (if included) is inaccurate.

Who it’s for: Budget-conscious laptop users who need 65W charging.

Mophie Powerstation Pro (or similar)

Strengths: If you prefer a premium aesthetic and reliable performance, Mophie (owned by ZAGG) makes solid banks. The Powerstation Pro series offers 20,000mAh and 65W USB-C PD. They’re well-built and come in a sleek design.

Trade-offs: They’re often more expensive than comparable Anker or UGREEN models. The capacity is lower than the 24K/25K options.

Who it’s for: Apple users who like the look and feel of Mophie accessories.

How to Choose

Budget: You can get a decent 10,000mAh bank for under $30, a 20,000mAh with 45W for $40–$60, and a 20,000mAh with 65W for $60–$80. The 24K+ premium banks cost $100–$150. Decide what you’re willing to spend, then match the capacity and wattage to your devices.

Use Case: Daily commute: A 10,000mAh bank is perfect. Weekend travel: A 20,000mAh bank with 45W+. Laptop charging: You need at least 45W, but ideally 65W or more. Multiple devices: Look for at least two USB-C ports and a USB-A port.

Trade-offs: The biggest trade-off is capacity vs. size/weight. A 10,000mAh bank is pocketable but won’t last a long trip. A 20,000mAh bank is heavier but more versatile. Also, higher wattage (for laptops) adds cost and size. Don’t buy a 140W bank if you only charge a phone—it’s a waste of money and pocket space.

Frequently Asked Questions

How many mAh do I need?

For a phone, 10,000mAh gives 1.5–2 full charges. For a tablet, 20,000mAh gives 1–2 charges. For a laptop, you need at least 20,000mAh, but check the wattage (see next question).

Can I charge my laptop with a power bank?

Yes, if the power bank has a USB-C PD port that outputs at least 45W (for most ultrabooks) or 60W+ (for larger laptops). Check your laptop’s charging wattage. A 65W bank is a safe bet for most.

What is USB-C Power Delivery (PD)?

It’s a fast-charging standard that allows higher wattage over USB-C. It’s essential for charging laptops and fast-charging many phones. Look for “PDâ€� in the specs.

Is it safe to leave a power bank plugged in overnight?

Yes, modern power banks have overcharge protection. They stop charging when full. However, it’s better to unplug them once charged to extend battery lifespan.

Why is my power bank charging slowly?

Check that your cable supports fast charging (look for “60Wâ€� or “100Wâ€� on the cable). Also, check that the port you’re using is the PD port. Some banks have a USB-A port that only outputs 5V/2A.

Can I take a power bank on a plane?

Yes, but only in carry-on luggage. The FAA and most airlines limit power banks to 100Wh (about 27,000mAh) without special approval. Check your airline’s rules.

Bottom Line

For 90% of people, a 20,000mAh power bank with at least 45W USB-C PD is the perfect balance of power, portability, and price. If you only need a phone top-up, get a 10,000mAh Anker. If you need to charge a laptop, get the Anker 737 or a 65W+ bank from UGREEN or Baseus. Don’t overbuy capacity you won’t use—it just adds weight.

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