Method and devices for monitoring a battery of a mobile communication device

A computerized service unit comprising:

• a communication module configured to receive via a mobile radio network periodic battery status reports from a mobile communication device, the battery status reports including at least an electrical battery parameter indicative of a current charge or voltage level of the battery;
• and
• a battery analyzer configured to store in the computerized service unit battery data, based on the battery status reports received from the mobile communication device, the battery data including at least a time series of the electrical battery parameter.

A battery powered mobile communication device comprising a battery monitoring system configured to monitor a battery status of the battery, the battery status including at least an electrical battery parameter indicative of a current charge or voltage level of the battery,

• wherein the battery monitoring system is further configured to generate and transmit battery status reports via a mobile radio network to a computerized central service unit, the battery status reports including at least the electrical battery parameter, for generating and storing at the computerized central service unit battery data including at least a time series of the electrical battery parameter.