Black Friday 12.4 hours of mixed use (4850 + DBMD4 DSP) Battery, Approximately 100 (from full charge; number of prints depends on the usage conditions.) Approximately 1.5 to 2.0 hours (depending upon environment temperature at time of charging) Battery, Up to 10 hours of surfing the web on Wi‐Fi or watching video & Up to 9 hours of surfing the web using a mobile data network. Battery