Logitech A-00031 G Pro Wireless G304 G50 Headphone Replacement Battery: BatteryClerk.com Headphone
Amazon.com: Cameron Sino New Replacement Battery Fit for Logitech A-00031, G Pro Wireless, G304, G502, G703 Lightspeed, MX Vertical, UE310, UE3500, UE4500, Wireless Headset H600(180mAh / 0.67Wh) : Electronics