Amazon.com: ElecGear Lithium ion Battery Pack for Xbox Wireless Controller, 2X 1200mAh Li-ion Rechargeable Battery for Xbox Series X/S, Xbox One Video Game Controller with 2X Play and Charge USB Cable :
Lithium-Ion Battery Charge Control IC | Lithium-Ion Battery Ics | MinebeaMitsumi Product Site
Pallus Lithium Xbox Controller Battery Pack for Xbox Series X|S / Xbox One Wireless Controller, 2 Pack 6000mWh Li-Ion Rechargeable Xbox One Controller ...