When choosing a power bank, here are the key things to look for:

1. Capacity (mAh)

• Measured in milliampere-hours (mAh), capacity determines power bank stash how many times it can charge your device.

• 5,000–10,000mAh: Good for smartphones (1–2 charges).

• 10,000–20,000mAh: Great for multiple phone charges or tablets.

• 20,000mAh+: Ideal for laptops, long trips, or multiple devices.

2. Output Power (Wattage)

• Check the output wattage (W = V × A). Higher wattage means faster charging.

• Look for 18W+ for fast-charging phones.

• 45W–100W for charging laptops or power-hungry devices.

3. Number of Ports

• More ports let you charge multiple devices simultaneously.

• Look for at least 1 USB-A and 1 USB-C for versatility.

4. Fast Charging Support

• Ensure compatibility with Quick Charge, Power Delivery (PD), or your device’s proprietary fast charging standard.

5. Input Charging Speed

• Some power banks take a long time to recharge. Look for fast input charging (USB-C PD) for faster top-ups.

6. Size and Weight

• Higher capacity usually means bigger and heavier. Choose based on your portability needs.

7. Build Quality and Safety Features

• Look for features like overcharge protection, short-circuit protection, and temperature control.

• Reliable brands often provide certifications (CE, FCC, RoHS).

8. Pass-Through Charging

• This allows you to charge your power bank and connected devices at the same time—handy but not always supported.

9. Compatibility

• Make sure it works with your devices (e.g., laptop charging over USB-C, wireless charging, etc.).

10. Brand Reputation and Warranty

• Trusted brands like Anker, Baseus, Belkin, or Mophie offer better support, longer warranties, and reliable performance.

Would you like help picking one for a specific device or use case?