Amazon.com: L-LL11 Battery for Logitech G7, MX Revolution, MX Air Mouse (600mAh, 3.7V, Lithium-Ion) : Electronics
Logitech MX Revolution Battery (OLD VERSION)
MX Air M RBQ124 MX Revolution G7 Battery for Logitech Mouse New Li Ion Rechargeable Accumulator Replacement 3.7V 600mAh 831409|Digital Batteries| - AliExpress