Google AI ModeSep 22, 2026
To get at least two full phone charges , you should look for a portable charger with a capacity of 10,000mAh to 20,000mAh.
- A standard 10,000mAh power bank gives roughly 1.5 to 2 full charges for most modern smartphones.
- A 20,000mAh power bank guarantees 3 to 4 full charges, though it will be slightly heavier and bulkier to carry.
Top-performing, reliable portable chargers that comfortably hit your mark include:
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Why it's great:
Anker is widely considered the gold standard for portable power. This ultra-reliable model is compact enough for a pocket, features high-speed USB-C fast charging, and will easily deliver 2 full charges for most standard phones. You can check options on Best Buy.
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Why it's great: Highly recommended by testers at Wirecutter , this reliable pack is a favorite for everyday carry, offering built-in convenience, solid construction, and plenty of capacity to get you through two full phone cycles.
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Why it's great: If you want to push past the two-charge minimum and not worry about recharging the power bank for days, this higher-capacity pack is a budget-friendly powerhouse with a handy LED percentage display and fast USB-C input/output.[2]
