What is the best external battery for smartphones and tablets?
This page compares 6 external batteries with verified specifications and prices. Top options include Nitecore Nitecore NB10000 Gen 2, Anker Laptop Power Bank 25K 165W Built-In and Retractable Cables, Epico Portable Power Bank 20000 mAh 100 W. Prices range from £15 to £222. All data is sourced from manufacturer documentation and specialist retailers.
| Product ⇅ | Price ⇅ | Capacity (mAh) ⇅ | Output Voltage (V) ⇅ | Output Current (A) ⇅ | Charging Time (hours) ⇅ | Weight (g) ⇅ | Input Charging Method ⇅ | Number of Ports ⇅ |
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Nitecore Nitecore NB10000 Gen 2
US
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£44.46 ≈ | 10000mAh 3.85V 38.5Wh | USB-C 5V 9V 12V; USB-A 5V 9V 12V | USB-C 3A at 5V, 2.22A at 9V, 1.68A at 12V; USB-A 3A at 5V, 2A at 9V, 1.5A at 12V | Approximately 4 hours | 150g | USB-C 5V 2.4A or 9V 2A 18W maximum | 2 |
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The Nitecore NB10000 Gen 2 is a slim, lightweight 10000mAh power bank with a carbon fiber construction, USB-C 20W output, and USB-A 18W output. It can charge two devices simultaneously and suits travelers, hikers, and everyday users who need dependable backup power without much weight. ★ Ideal forIt suits smartphones and tablets well because its 10000mAh capacity provides multiple phone charges, USB-C delivers up to 20W, USB-A delivers up to 18W, and two ports support simultaneous charging.
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Anker Laptop Power Bank 25K 165W Built-In and Retractable Cables
US
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£88.98 ≈ | 25,000mAh | USB-C: 3-11V, 5V, 9V, 10V, 12V, 15V, 20V; USB-A: 3-11V, 5V, 9V, 12V | USB-C: up to 5A; USB-A: up to 3A | About 2 hours with a 100W or higher charger | 21.0oz (595g) | USB-C cable or USB-C port, 100W maximum | 4 total: 3 USB-C and 1 USB-A |
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This 25,000mAh power bank delivers up to 165W and can charge four devices simultaneously through three USB-C connections and one USB-A port. Its two built-in USB-C cables, retractable cable, smart display, and high laptop-charging capacity make it well suited to frequent travelers, remote workers, and users carrying multiple devices. ★ Ideal forIt suits smartphones and tablets especially well because its 25,000mAh capacity provides multiple charges, while three 100W-capable USB-C connections, one 33W USB-A port, and support for charging four devices at once provide fast and flexible multi-device charging. |
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Epico Portable Power Bank 20000 mAh 100 W
US
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£59.99 ≈ | 20000 mAh | 20 V | 5 A | — | 368 g | USB-C | 4 |
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This 20000 mAh power bank provides up to 100 W Power Delivery through USB-C ports and includes two USB-A ports with up to 22.5 W output. Its LED display, aluminium casing, and ability to charge up to four devices make it suitable for smartphone, tablet, and laptop users who need portable high-capacity charging. ★ Ideal forIt suits smartphones and tablets because its 20000 mAh capacity can recharge them several times, while four ports allow simultaneous charging and USB-C Power Delivery provides fast charging up to 100 W.
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VIOFO BP100
US
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£222.43 ≈ | 7650mAh 98Wh | 11.8V to 14.2V and 5V | 3A | 70 minutes via hardwiring cable or 100 minutes via cigarette lighter cable | 1.22kg | Cigarette lighter cable or hardwiring cable | 2 |
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The VIOFO BP100 is a 7650mAh LiFePO4 battery pack designed for extended dash cam parking-mode recording. It provides a dedicated dash cam output and a 5V USB Type-C output for charging smartphones and other mobile devices, making it suitable for drivers, commuters, and rideshare users. ★ Ideal forThe BP100 suits smartphones and tablets because its dedicated 5V 3A USB Type-C output can charge mobile devices while its 98Wh capacity and 70- or 100-minute vehicle charging options provide substantial stored power. |
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Baseus PicoGo AM41 5000 mAh 20 W
US
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£14.53 ≈ | 5000 mAh | 5 V, 9 V, 12 V | 2.4 A, 2.22 A, 1.5 A | — | 110 g | USB-C | 2 |
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The Baseus PicoGo AM41 is a slim 5000 mAh magnetic power bank with 20 W USB-C wired output and up to 7.5 W magnetic wireless charging. Its compact 110 g design suits smartphone users who want portable backup power, while the USB-C connection can also charge compatible tablets. ★ Ideal forIt suits smartphones and tablets because it combines a 5000 mAh capacity with 20 W USB-C output, magnetic wireless charging, pass-through charging, and a USB-C input. |
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INIU INIU P50
US
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£22.02 ≈ | 10000 mAh | 5V, 9V, 12V, 15V | 3A maximum | 2 hours | 160 g | USB-C, 20W maximum | 3 |
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The INIU P50 is a compact 10000 mAh power bank with up to 45W USB-C output, two USB-C ports, one USB-A port, and a detachable USB-C cable. Its lightweight 160 g design and digital battery display suit people who need portable fast charging for smartphones, tablets, and other devices. ★ Ideal forThe INIU P50 suits smartphone and tablet users who want a lightweight 160 g battery with 10000 mAh capacity, up to 45W USB-C charging, and three ports for charging multiple devices. |
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