Replacement battery fits 7 3M compatible models. Specifications: 4500mAh, 9.6V, Ni-MH. Compatible with: Scott Proflow PF-630, PF-619E, PM PA-A867-NG, Scott Proflow Sc, Scott Sc Asbestos, Scott Proflow SC 120 and 1 more compatible models. Replaces: Scott HR-4/3FA-X8, Scott 5063748, Scott 5063554, Scott 5063790. 3M replacement battery designed for Equipment/Survey/Test Charger devices.