Razer Blade Stealth 13" (11th gen Intel® Core™) Replacement Battery

Does anyone know the best way to get a replacement battery for my Razer Blade Stealth 13" (11th gen Intel® Core™)? The battery only lasts for 30 minutes on a full charge even with battery settings optimization. I'm just looking for the fastest and most reliable way to get a new (legit) battery without having to send my laptop in. I've seen some prior posts from users saying it was very difficult to get Razer to send them a replacement battery, and I really don't want to have to go through hours of hassle; I just want to buy a new official replacement battery. Thank you!