750mAh High Capacity Extended L-LL11 Battery Replacement for Logitech MX Air M-RBP123 M-RMP123 Cordless Optical Mouse Replacement for the following Logitech battery model/part numbers: L-LL11, NTA2319, 190310-1000, 190310-1001, 190310-2001, 831409 & 831410. Compatible with the following Logitech mouse models: M-RBP123, M-RMP123, M-RBQ124 & M-RBH113. High Capacity 3.7V 750mAh (OEM Battery is 600mAh) Lithium-ion Battery. 1 Year Replacement Warranty MPF Products is a Registered Trademark.