A method of providing information regarding availability of portable electrical energy storage devices at a collection, charging and distribution machine (308a, 308b, 308c, 308d) for collection, charging and distribution of portable electrical energy storage devices, the method comprising: receiving, by the collection, charging and distribution machine (308a, 308b, 308c, 308d), via a short range wireless connection, information regarding presence of a wireless mobile device running an application associated with the collection, charging and distribution machine (308a, 308b, 308c, 308d) within short range wireless signal range of the collection, charging and distribution machine (308a, 308b, 308c, 308d); and in response to the received information regarding presence of the wireless mobile device: communicating, via the short range wireless connection, to the wireless mobile device from the collection, charging and distribution machine (308a, 308b, 308c, 308d) information regarding an availability of a portable electrical energy storage device at the collection, charging and distribution machine (308a, 308b, 308c, 308d) by sending an alert to be displayed on the wireless mobile device indicating there is an available portable electrical energy storage device at the collection, charging and distribution machine (308a, 308b, 308c, 308d); whereby the alert includes a selectable interface element to be displayed on the wireless mobile device that is selectable to reserve the portable electrical energy storage device. receiving, by the collection, charging and distribution machine (308a, 308b, 308c, 308d), via a short range wireless connection, information regarding presence of a wireless mobile device running an application associated with the collection, charging and distribution machine (308a, 308b, 308c, 308d) within short range wireless signal range of the collection, charging and distribution machine (308a, 308b, 308c, 308d); and in response to the received information regarding presence of the wireless mobile device: communicating, via the short range wireless connection, to the wireless mobile device from the collection, charging and distribution machine (308a, 308b, 308c, 308d) information regarding an availability of a portable electrical energy storage device at the collection, charging and distribution machine (308a, 308b, 308c, 308d) by sending an alert to be displayed on the wireless mobile device indicating there is an available portable electrical energy storage device at the collection, charging and distribution machine (308a, 308b, 308c, 308d); whereby the alert includes a selectable interface element to be displayed on the wireless mobile device that is selectable to reserve the portable electrical energy storage device. communicating, via the short range wireless connection, to the wireless mobile device from the collection, charging and distribution machine (308a, 308b, 308c, 308d) information regarding an availability of a portable electrical energy storage device at the collection, charging and distribution machine (308a, 308b, 308c, 308d) by sending an alert to be displayed on the wireless mobile device indicating there is an available portable electrical energy storage device at the collection, charging and distribution machine (308a, 308b, 308c, 308d); whereby the alert includes a selectable interface element to be displayed on the wireless mobile device that is selectable to reserve the portable electrical energy storage device.