GoPro Battery Life For Time Lapse?

[neenaw]

I'm looking to get a GoPro to use on a couple of cycling trips this year. It'll be used to take a photo every 60s or thereabouts over a period of a few hours, possibly to put together as a time lapse video.

Could anyone give me some idea of how much battery life I could expect from either the GoPro Hero 5 or the Hero 5 Session?
I think the Sesison might be the better camera to use due to it's smaller size but the battery life may be a bigger deciding factor.

[neenaw]

Dave. said:

You could try a portable usb charger.

https://www.anker.com/products

The portable charger would be ideal normally but for the particular ride I'm doing it's going to be fairly rough and I wouldn't fancy the charger's chances of staying attached to the GoPro or the bike!
For anyone who knows it, it's the Paris Roubaix Sportive and the cobbles are pretty brutal by all accounts.