950MAH Original size battery for Logitech wireless mouse G403 G900 G903 G703 battery Logitech x100 Li Polym batteries|Mobile Phone Batteries| - AliExpress
Bought a double clicking G703 for cheap. Swapped in a lighter battery, GM switches, and fixed scroll wheel. Pretty in love with it now. : r/MouseReview
Amazon.com: Logitech G703 Lightspeed Gaming Mouse with POWERPLAY Wireless Charging Compatibility, Black : Video Games