Yes, we still have a forum.
Hi, welcome to the forums. First off, let's move this topic to the appropriate section. Secondly, what console are you even talking about?
Just as a heads up, the coin cell that was pictured in this guide (a CR2025 from what I can see) is not rechargeable. The stock battery is an ML2430, so a suitable replacement of about the same size as a CR2025 would be cells with the code ML20XX (ML2020, ML2025, ML2032).