Battery life is excellent. While we only managed to squeeze about five hours and 15 minutes from our battery rundown test (where we play a looped video starting from a full charge), it matches what we saw with the Droid RAZR, which features a similar battery and processor. Note that we switched video players since our usual app misbehaves in Ice Cream Sandwich. The 1,750mAh battery fared significantly better in our battery usage test (where we use the device normally until it shuts down), lasting an impressive 28 hours. Other than watching videos, it's unlikely most people will have to worry about running out of juice with the Galaxy Nexus.