It will last a 6-8 hours of fairly heavy surfing (no video, 1 or 2 podcasts) on the cell data network, or a full day of normal use/non-use. I usually leave wif

It will last a 6-8 hours of fairly heavy surfing (no video, 1 or 2 podcasts) on the cell data network, or a full day of normal use/non-use. I usually leave wifi and GPS off, and haven't really had any problems w/battery life.