Replacement 8M100003282 3E309009565 Battery for Callaway uPro G1, Callaway uPro MX, Callaway uPro MX+ & Callaway uPro 31000-01 GPS Golf Range Finders Compatible with the following models: Callaway uPro G1, Callaway uPro MX, Callaway uPro MX+ & Callaway uPro 31000-01 GPS Units. Replaces the Following Battery Models: 8M100003282, 3E309009565, CS-SUP02SL, PA-CY001. 3.7V 750mAh 2.77Wh Lithium-Ion 1 Year Replacement Warranty. MPF and MPF Products are Trade Marks.