Our verdict

For daily carry, the Anker PowerCore 10K wins — its built-in cable means no cord to hunt; need laptop power? The Anker 737, INIU, or Baseus step up.

Best for best portable charger / power bank for phones and laptops

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Why we chose it: A built-in retractable cable and pocketable size make it the charger most people can carry every day and never hunt for a cord — sized for a full phone recharge on the go. Read the full reasoning →

Anker Power Bank (PowerCore 10K), Compact Travel-Ready 10,000mAh Nano Power Bank, Portable Charger with 2.3 ft InstaCord Retractable Cable

View Anker Power Bank (PowerCore 10K), Compact Travel-Ready 10,000mAh Nano Power Bank, Portable Charger with 2.3 ft InstaCord Retractable Cable on AmazonYou pay the same either way.

We synthesized thisHow we pickedUpdated Aug 21, 2026Affiliate disclosureIndependent recommendations — never pay-to-play.

Buy this if

You prioritize capacity
You prioritize output
You prioritize cable and ports

Skip it if

Skip a phone-sized pack like the PowerCore 10K if you need to recharge a laptop on the go — reach for the higher-wattage Anker 737 or INIU instead. And skip a big laptop pack if all you ever top up is a phone; the extra size and weight just go to waste.

Our top pick

Top pick

Anker Power Bank (PowerCore 10K), Compact Travel-Ready 10,000mAh Nano Power Bank, Portable Charger with 2.3 ft InstaCord Retractable Cable

Capacity10,000mAh
CableBuilt-in 2.3 ft InstaCord retractable cable
SizeCompact, pocketable
Best suited toPhone charging

Pros

A built-in 2.3 ft retractable cable means there's no separate cord to remember or lose
Pocketable, compact size makes it easy to carry every day

Cons

The 10,000mAh capacity is sized for phones, not laptops, so it won't revive a drained notebook
The integrated cable can't be swapped on its own if it ever wears out, unlike a bank that takes removable cables

View Anker Power Bank (PowerCore 10K), Compact Travel-Ready 10,000mAh Nano Power Bank, Portable Charger with 2.3 ft InstaCord Retractable Cable on AmazonYou pay the same either way.

Alternatives

Best for charging a laptop

Anker 737 Power Bank, 24,000mAh 3-Port Laptop Portable Charger with 140W Output Prime Power Bank, 9,600mAh Battery Pack with 65W Output, Built-in AC Plug

Capacity24,000mAh
Output140W across 3 ports
ExtraBuilt-in AC plug (doubles as a wall charger)
Best suited toLaptop charging

Pros

140W output across three ports and a 24,000mAh cell can carry a laptop through a full work day, not just top up a phone
A built-in AC plug lets it double as a wall charger, so it's one less brick to pack

Cons

Noticeably bulkier and heavier than phone-only power banks, so it's a lot to carry for light days
The large 24,000mAh cell takes longer to recharge to full than a smaller bank

View Anker 737 Power Bank, 24,000mAh 3-Port Laptop Portable Charger with 140W Output Prime Power Bank, 9,600mAh Battery Pack with 65W Output, Built-in AC Plug on AmazonYou pay the same either way.

Best for packing light

INIU Laptop Power Bank, Smallest 20000mAh 65W Fast Charging Battery Pack, USB C Cable, Flight-Safe, Travel Essentials, Portable Charger for MacBook Pro, Steam Deck, iPhone, iPad etc, Metallic Silver

Capacity20,000mAh
Output65W fast charging
SizeNotably compact shell for its capacity
ConnectivityUSB-C cable

Pros

Packs a 20,000mAh capacity into a notably compact shell for its size
The small footprint slips into a pocket and clears carry-on space limits

Cons

A cell this large still takes real time to refill the pack itself, even with fast charging
Its 65W output is below what the most power-hungry laptops draw for full-speed charging

View INIU Laptop Power Bank, Smallest 20000mAh 65W Fast Charging Battery Pack, USB C Cable, Flight-Safe, Travel Essentials, Portable Charger for MacBook Pro, Steam Deck, iPhone, iPad etc, Metallic Silver on AmazonYou pay the same either way.

Best for a built-in cable with laptop output

Baseus Laptop Portable Charger 100W 20000mAh 22.5W PD Fast Charging 10000mAh Power Bank Built-in Braided USB C Cable

Capacity20,000mAh
Output100W
CableBuilt-in braided USB-C cable
ExtrasDigital charge readouts and multi-port charging

Pros

A durable braided built-in cable plus 100W output can fast-charge many laptops, not just phones
The built-in cable means one less cord to carry and lose

Cons

Digital charge readouts and multi-port charging are secondary extras some people weigh more than others
The built-in cable is a fixed part, so if it wears out it can't be swapped the way a detachable cable can

View Baseus Laptop Portable Charger 100W 20000mAh 22.5W PD Fast Charging 10000mAh Power Bank Built-in Braided USB C Cable on AmazonYou pay the same either way.

How the picks compare

The picks compared for best portable charger / power bank for phones and laptops
Attribute	Anker Power Bank (PowerCore 10K), Compact Travel-Ready 10,000mAh Nano Power Bank, Portable Charger with 2.3 ft InstaCord Retractable CableBest for best portable charger / power bank for phones and laptops	Anker 737 Power Bank, 24,000mAh 3-Port Laptop Portable Charger with 140W Output Prime Power Bank, 9,600mAh Battery Pack with 65W Output, Built-in AC Plug	INIU Laptop Power Bank, Smallest 20000mAh 65W Fast Charging Battery Pack, USB C Cable, Flight-Safe, Travel Essentials, Portable Charger for MacBook Pro, Steam Deck, iPhone, iPad etc, Metallic Silver	Baseus Laptop Portable Charger 100W 20000mAh 22.5W PD Fast Charging 10000mAh Power Bank Built-in Braided USB C Cable
Capacity	Anker Power Bank (PowerCore 10K), Compact Travel-Ready 10,000mAh Nano Power Bank, Portable Charger with 2.3 ft InstaCord Retractable Cable10,000mAh, sized for phones	Anker 737 Power Bank, 24,000mAh 3-Port Laptop Portable Charger with 140W Output Prime Power Bank, 9,600mAh Battery Pack with 65W Output, Built-in AC Plug24,000mAh, laptop-capable	INIU Laptop Power Bank, Smallest 20000mAh 65W Fast Charging Battery Pack, USB C Cable, Flight-Safe, Travel Essentials, Portable Charger for MacBook Pro, Steam Deck, iPhone, iPad etc, Metallic Silver20,000mAh, laptop-level	Baseus Laptop Portable Charger 100W 20000mAh 22.5W PD Fast Charging 10000mAh Power Bank Built-in Braided USB C Cable20,000mAh
Output	Anker Power Bank (PowerCore 10K), Compact Travel-Ready 10,000mAh Nano Power Bank, Portable Charger with 2.3 ft InstaCord Retractable CableSized for phone charging	Anker 737 Power Bank, 24,000mAh 3-Port Laptop Portable Charger with 140W Output Prime Power Bank, 9,600mAh Battery Pack with 65W Output, Built-in AC Plug140W across 3 ports	INIU Laptop Power Bank, Smallest 20000mAh 65W Fast Charging Battery Pack, USB C Cable, Flight-Safe, Travel Essentials, Portable Charger for MacBook Pro, Steam Deck, iPhone, iPad etc, Metallic Silver65W fast charging	Baseus Laptop Portable Charger 100W 20000mAh 22.5W PD Fast Charging 10000mAh Power Bank Built-in Braided USB C Cable100W
Cable and ports	Anker Power Bank (PowerCore 10K), Compact Travel-Ready 10,000mAh Nano Power Bank, Portable Charger with 2.3 ft InstaCord Retractable CableBuilt-in retractable cable	Anker 737 Power Bank, 24,000mAh 3-Port Laptop Portable Charger with 140W Output Prime Power Bank, 9,600mAh Battery Pack with 65W Output, Built-in AC Plug3 ports plus a built-in AC plug	INIU Laptop Power Bank, Smallest 20000mAh 65W Fast Charging Battery Pack, USB C Cable, Flight-Safe, Travel Essentials, Portable Charger for MacBook Pro, Steam Deck, iPhone, iPad etc, Metallic SilverUSB-C cable	Baseus Laptop Portable Charger 100W 20000mAh 22.5W PD Fast Charging 10000mAh Power Bank Built-in Braided USB C CableBuilt-in braided cable, multi-port

What to look for

Capacity

How much charge a pack holds decides whether it tops up a phone once or powers a laptop through a day.

Output

Higher wattage is what fast-charges a laptop, not just a phone — it's the number that separates the two jobs.

Cable and ports

A built-in cable means one fewer cord to lose, while extra ports charge more devices at once.

How we chose

We synthesized this

A portable charger is only as useful as the thing it keeps alive — a phone for a day out, or a laptop through a work trip. Start there, and the right pack picks itself.

We weighed each pack against three things that decide real-world use: how much charge it holds, how much power it can push, and whether the cable and ports spare you from carrying extras. The Anker PowerCore 10K wins for daily carry because its built-in retractable cable and pocketable size mean most people can carry it every day and never go hunting for a cord.

The alternatives climb the capacity ladder. The Anker 737 has the wattage and cell to run a laptop through a work day and even doubles as a wall charger. The INIU squeezes laptop-level capacity into a notably compact shell for travelers packing light. And the Baseus pairs a braided built-in cable with enough output to fast-charge many laptops.

Every assessment here is a synthesis of documented specs and established use, not a timed lab test — you can read exactly what that means on our how-we-test page. Start with the biggest thing you need to charge, and size up from there.

Frequently asked questions

Can a portable charger recharge a laptop?

Only if it has both the wattage and the capacity for it. The Anker 737 at 140W, the Baseus at 100W, and the INIU at 65W are built for laptop charging; a phone-sized pack like the PowerCore 10K is not.

What does mAh mean?

Milliamp-hours measure how much charge a pack holds — a higher number means more top-ups before the pack itself needs recharging. Around 10,000mAh suits phones, while 20,000mAh and up starts to cover laptops.

Are built-in cables worth it?

They mean one fewer cord to remember and lose. The PowerCore 10K and the Baseus both build the cable in — the trade-off is you're limited to that cable's connector, so check it matches your devices.