A system, a server, a chargeable energy storage, and a method for monitoring said chargeable energy storage

The invention concerns a mobile chargeable energy storage (100), comprising a battery (101), a load monitoring unit (102), a position sensing unit (103) and a sender (104), wherein said load monitoring unit (102) is adapted to monitor a charging state of said battery (101), wherein said position sensing unit (103) is adapted to monitor a geographic position of said battery (101) and wherein said sender (104) is adapted to send information about said charging state and said geographic position, in particular to a server.