DoseCan contains a rechargeable Lithium-Ion Polymer Battery, with a capacity of 1300 mAh.
Lithium-ion batteries last longer if there is power on the battery. Storing a battery without power can result in the battery blowsing up and loses its properties.
Please be sure to have battery power when it is put in storage, or be out of service for an extended period.
See more about the battery here: http://www.farnell.com/datasheets/1666651.pdf?_ga=2.87949592.1264816077.1533728417-872561562.1514985477