Honeywell Thor VM3, User Manual, Page: 40 / 378

28 Thor VM3 with Microsoft Windows Embedded Compact 7 User Guide
The UPS status LED and the Battery Control Panel can be used to monitor the state of
the UPS battery.
Safe Charging Temperature Range
The temperature of the Thor VM3 is the trigger for UPS battery charging.
• The UPS battery is not charged when the ambient (room) temperature is below -30°C
(-22°F).
• The UPS battery is not charged when the ambient (room) temperature is above 50°C
(122°F).
• Move the Thor VM3 to a different location to charge the UPS battery.
When the Thor VM3 is operated in an environment where the UPS battery is not able to
charge due to temperature extremes, the Thor VM3 should be removed to a location
within the safe charging temperature range during off hours. A discharged UPS battery
cannot protect against data loss in the event vehicle power is interrupted.
Charging Timeout
• A fully discharged UPS battery normally recharges in less than 4 hours when the Thor
VM3 is in a powered dock and within the safe charging temperature range.
• If the UPS battery is not charged before an 8 hour timeout period expires, the UPS
Status LED then flashes super-fast red.
• If the charge timeout occurs, remove the Thor VM3 from the dock and Disconnect
UPS Battery . Reinstall the Thor VM3 in the dock and power on.
Charging and Power Management
• Charging does not occur when the Thor VM3 is in ignition mode and the ignition is
inactive.
• Charging of the UPS battery continues when the Thor VM3 is in power management
(user idle, system idle or suspend modes).
Safety requirements restrict the temperature at which the Li-Ion UPS bat-
tery can be charged. Charging is disabled if the ambient temperature is out-
side of the 0ºC to 35ºC safe charging range. In order to maintain UPS
charge the Thor VM3 should have power applied while the unit is within the
safe charging range for at least an hour each day.