A diet based on 1200 calories daily is the recommended minimum for safe and healthy weight loss. This is because 1200 calories will generally provide an adequate nutritional intake for most individuals, yet still allows the reduction of calories to the level that most dieters require in order to lose weight.
Stand-by time (battery life) Stand-by time is the officially quoted longest time that a single battery charge will last when the phone is constantly connected to the GSM network but is not in active use. The stand-by time is highly dependent on the cellular network environment, such as the distance to the closest GSM cell tower (base station).
Battery capacity is a measure (typically in Amp-hr) of the charge stored by the battery. You may think that calculating how long a battery will last at a given rate of discharge is as simple as amp-hours: for given capacity C and discharge current I time will be. , However, battery capacity decreases as the rate of discharge increases.