TabletKiosk eo a7330 Ultra-Mobile - Manual (Page 39)

24 Chapter 03: Battery Usage and Care
Since a smart Lithium-Ion battery slowly discharges during
prolonged storage, you should fully recharge the battery before
you use it again. Additionally, you should consider periodically
charging and discharging a battery in long term storage to
promote optimal battery performance and life.
TIP: If storing the batteries for a long period of time, we recommend
charging and discharging the Lithium-Ion main battery every 1 - 2
months, while we recommend every 2 -3 months for the Lithium
Polymer secondary battery. Remember to bring the charge level to
approximately 40 - 50% capacity before replacing into storage.