extended use outside could cause your phone to drain quicker than normal, and shut off randomly, even though the battery still has power. In older phones, this occurr...
MP (f/2.4, 35mm, 1/3.2", 1.4 µm), autofocus, LED flash,
battery- Non-removable Li-Po 1432 mAh battery (5.3 Wh)
Stand-by Up to 200 h (2G) / Up to 200 h (3G)
Talk time ...