50 Using the Vivo 40
Vivo 40 clinician’s manual
Doc. 003886 En-Us A-1e
Charging the Internal Battery
Each time the Vivo 40 is connected to the AC power supply and the On/Off
switch is switched on (standby mode), the Vivo 40 will automatically start a 10-
hour charging cycle of the internal battery. This is indicated by a flashing battery
indicator in the display. This is done regardless of the internal battery charging
status.
To recharge an empty internal battery takes about 14 hours in standby mode.
The charging is reduced by 50% during operation. If the temperature inside the
Vivo 40 is higher than 113°F (45°C), which is normal during operation, the
charging is decreased in order to protect the battery. This will result in longer
battery charging time.
Follow the instructions below to ensure that the battery capacity of the Vivo 40
is maximized during its lifetime:
• Exercise the battery every 3 months by discharging it completely and fully
recharging it again. Repeat this procedure twice.
• If the Vivo 40 is stored for more than 1 month, connect it to the
AC power
supply to recharge the internal battery and alarm battery.
• Replace the internal battery every 24 months, after 500 charging cycles, or
when necessary to ensure the battery performance.
Internal Battery Operation Time
The internal battery operation time is dependent on the battery condition, its
capacity, the ambient air temperature and the Vivo 40 settings.
The battery level is displayed in the
monitoring section. The estimated
internal battery capacity is only
shown when the Vivo 40 is
operating
from the internal battery. This display
is for indication only.
