Staff pickSalePower Banks
Core 20K MagSafe Power Bank
4.1 · 18 reviews
20,000mAh with 30W passthrough and a snap-on magnetic back.
$69.00$89.00
The full range
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Fifty tested products across five departments. Prices are in USD and exclude local import duties. Orders over $49 ship free within the United States.
Showing 10 of 50 products
Staff pickSale
Power Banks
Core 10K Slim Power Bank
4.8 · 55 reviews
Pocket-thin cell with a built-in USB-C cable and digital readout.
$39.00
Power Banks
Core 5K Magnetic Mini
4.6 · 92 reviews
A magnetic top-up that sticks to the back of your phone all day.
$29.00
Power Banks
Core 27K Laptop Power Bank
4.4 · 129 reviews
Airline-legal capacity with 100W output to run a laptop off-grid.
$119.00
OutdoorsPower Banks
Core Solar 30K Rugged Bank
4.2 · 166 reviews
IP66 shell, solar top-up panel and a built-in camp lantern.
$89.00
Power Banks
Core 10K Wall-Plug Hybrid
4.9 · 203 reviews
A wall charger and power bank in a single fold-pin body.
$54.00
Power Banks
Core Watch Keychain Charger
4.7 · 20 reviews
Keyring-sized reserve that gives a smartwatch two full charges.
$22.00
Power Banks
Core 20K Four-Port Hub Bank
4.5 · 57 reviews
Charge four devices at once and recharge the bank in 2.5 hours.
$74.00
SalePower Banks
Core Car Jump Starter 12K
4.3 · 94 reviews
2000A peak jump starter that doubles as a power bank and torch.
$99.00$129.00
Power Banks
Core Battery Health Test Cable
4.1 · 131 reviews
Inline meter that shows real charge speed and total watt-hours.
$18.00
Buying guide
Power banks rated on real delivered capacity
A power bank's headline capacity is cell capacity, not what reaches your phone. Conversion losses mean a 10,000mAh bank realistically returns closer to 6,500mAh, so we publish measured output alongside the rated number.
Choosing a capacity
For a single day away from a socket, 5,000-10,000mAh is enough and stays pocketable. Travel and laptop top-ups need 20,000mAh with at least 45W USB-C output. Anything over 27,000mAh is generally restricted in aircraft cabins, so we avoid listing it.
MagSafe and pass-through
Magnetic banks are convenient but charge slower and warmer than cabled ones, and we state both figures. Pass-through charging, where the bank charges your phone while itself plugged in, is noted per product because not every model supports it safely.
Cell quality and lifespan
We use banks with A-grade cells that hold at least eighty percent of capacity after 500 cycles, plus short-circuit and temperature protection. Each unit ships partially charged and safety certified for air travel.