For Razer Blade 15 base 2020 2021 RZ09-0328 RZ09-03287E22 RZ09-03287E22-R3B1 RZ09-03287E22-R3U1 RZ09-03287E22-R341 RZ09-03304x RZ09-03305x RZ09-0330x RZ09-03519E11 RZ09-03519E11-R3U1 Series. If run the battery shut down often, it will shorten the battery life.
eBay