Wasabi Power Battery for Contour 2350, C010410K and ContourHD, ContourGPS, Contour+, Contour+2 Provides up to 3 hours of power, depending on usage and temperature 3.7V and 1300mAh for a longer run time than the Contour original; Premium Japanese cells for longer battery life with no memory effect; CE safety certification Can be charged in your Contour camera, with the Contour 2450 universal wall charger, or with the Wasabi Power wall charger For use with ContourHD, ContourGPS, Contour+, and VholdR 720p, 1080p, 1200, 1300, 2350. No additional batteries are needed with the ContourROAM. The ContourROAM features a built in battery. Includes battery with 3-year manufacturer warranty