When you look at the Beryl app, you'll see that e-bikes have a range indicated.

This range is indicative only - the actual battery life of the e-bike will vary depending on how fast you are cycling, the weight of the rider and anything being carried, and the steepness of any hills you're climbing.

While it's not possible to give an exact range because of these different factors, the range shown will give you a good idea of how far the battery will last and will help you choose a bike that is suitable for the trip you have planned.