Any e road bike users on here?

Ive got an e mtb, not looking to buy a e road bike (got a nice road bike I enjoy riding)

Was curious to roughly how many miles and how much elevation you can get from a full charge

Obviously it also depends on what mode is used but  just want a rough idea

Thanks

Just buy slicks for your Emtb. a roadbike that only assists up to 15mph is only ever going to be any use on climbs and just feel like a horrible heavy handling bike everywhere else.