Bissell BG697 plus Notice D'emploi page 5

discharge if the machine is stored without use for a long time. In the case of a long storage time,
please recharge the battery every 2 month for 10h.
Attention: If you do want to store the sweeper for longer than 2 months please
disconnect the battery to avoid discharging of the battery
version 03/2015 Start with Serialnumber :11/2015100395 -5-