The best laptop power banks for 2025

Here is a 180-word summary of the key points from the article: The article discusses the best laptop power banks for 2025. It explains that these larger portable chargers can refill a phone multiple times, a tablet a couple times, and get most laptops from near-dead to work-ready in around an hour. The article covers what to look for in a good laptop power bank, including capacity, ports, wireless charging, and design. The article notes that most portable batteries top out at around 27,000mAh, which is the current TSA limit for carry-on batteries. However, some airlines have announced further restrictions on flying with battery packs due to recent incidents of battery packs catching fire on flights. The article also covers how to test portable laptop chargers, including draining devices to a low battery and then measuring how much of the power bank's capacity is used to recharge them. It also tested features like portability, durability, and design. Finally, the article provides answers to common questions about laptop power banks, such as how they differ from phone power banks and what size is needed to charge a laptop.