Does anyone know what battery grip I actually need for the Sony a9 III because I am totally lost and dont want to buy the wrong thing? I just got this camera for my kids soccer games here in Chicago and its way more complicated than I thought it would be. I feel like such a dummy even asking this but I really have no idea where to start with accessories or what even fits this specific model.

My uncle gave me the camera as a graduation gift since I want to get into sports photography but I noticed the battery seems to go down pretty quick when I am just practicing in the backyard. Someone at the park mentioned I should get a grip so I can hold it better sideways and have more battery life but when I look online there are so many options. Is there a specific one that is a must-have for sports or are they all basically the same thing?

• Do I need the official Sony brand one or is that a rip off?
• Are the third party ones gonna break my camera or something?
• Is it hard to install or do I need tools?

I have maybe 300 dollars left to spend on this for now before the season starts next month. I keep seeing the VG-C5 mentioned but it looks really expensive and I dont want to waste money if there is a better way to do this. If anyone could explain this to me like I am five years old that would be amazing because I am drowning in all these technical terms and just want to take good pictures of the team...