What is a good power bank capacity?

Above 25000mAh: For high-demand users, like those who travel extensively or need to charge multiple devices simultaneously, a 25000mAh or higher power bank is perfect. This capacity is ideal for laptops, cameras, drones, or gaming consoles (like the Nintendo Switch or portable gaming devices).

Which power bank should I buy?

The Nimble Champ is our top recommendation for most folks, but we have all sorts of alternatives here. Read our Best MagSafe Power Banks guide for Apple-specific portable chargers, and our Best Portable Power Stations guide if you need more power. Updated June 2025: We've added power banks from Redmagic and Statik, and added a new FAQ.

How to choose a power bank for a laptop?

If you have a laptop with a 50,000 mAh battery, you should select a power bank with at least that capacity for a full charge. Charging Speed: Charging speed is determined by the output rating of the charger, measured in watts. A charger should ideally have an output that matches or exceeds the input requirement of your device.

What size power Bank do I Need?

Fortunately, there’s an easy equation to figure out the size you need. Let’s say that your power bank has 5,000 mAh. You need to multiply the capacity by the volt rating to get the mWh: the megawatt-hour rating.

What is a power bank?

A power bank is a portable charger that you can use when you don’t have access to an electrical outlet. They can be used as a backup battery for anything that may need charging (phone, laptops, speakers, watches, etc). However, not all power banks are created equal, and finding the right capacity for your needs can be challenging.

How much Mah does a power bank have?

Power banks are available in a wide range of capacities, from as little as 1000 mAh to as much as 50,000 mAh or more. However, it’s worth noting that as the mAh capacity of a power bank increases, so does its physical size and weight– which can be a serious detriment in the backcountry or while traveling. Bigger is not always better!