This is a major pro. While traditional rangefinders use disposable CR2 batteries, the rechargeable models (often via a common USB-C cable) offer significant advantages:
Cost-Effective: No more last-minute purchases of expensive batteries.
Convenient: Charge it just like your phone. A single charge usually lasts for multiple rounds.
Eco-Friendly: You reduce battery waste.
The only potential "con" is if you forget to charge it, but the long battery life and easy charging options make this a minor concern for most golfers.