A power bank for a laptop is a portable battery designed to charge or power laptops when you’re away from a power source. Unlike standard power banks for phones, these typically have higher capacities (measured in mAh or Wh) and support higher wattage outputs to match the power needs of a laptop. Here are some key features to look for:
1. Capacity: Power banks for laptops usually have capacities ranging from 20,000 mAh to 50,000 mAh or more, depending on how long you need to run the laptop.
2. Wattage: Look for power banks with high power output (measured in watts, W), typically 45W to 100W or higher, depending on your laptop’s power requirements.
3. USB-C or AC Output: Many modern laptops charge via USB-C, so a power bank with Power Delivery (PD*) capability is ideal. Some power banks even have AC outlets to directly plug in the laptop’s charger.
4. Compatibility: Make sure the power bank is compatible with your specific laptop model in terms of voltage and wattage.
5. Size and Portability: Larger capacities often mean bulkier power banks, so consider the trade-off between battery life and portability.
* Power Delivery (PD) is a fast charging protocol that allows devices to charge quickly over a USB connection. Power Delivery also allows power to flow in both directions, so connected devices can charge each other.