Backup Battery; Fuse - Honeywell THOR VM2 Reference Manual

When external power is removed, the UPS automatically powers the Thor VM2 with no user intervention. When running on
UPS power, the power management timeouts may be different than when vehicle power is applied.
The UPS allows the Thor VM2 to continue operation when not mounted in a dock or when the vehicle battery is being swapped.
The UPS battery is designed to power the Thor VM2 for a minimum of 30 minutes at temperatures of -20ºC (-4ºF) or greater.
If operating on UPS power and the UPS battery becomes critically low, the Thor VM2 performs a controlled shutdown.
If there is no external power available, there must be 10% or greater power in the UPS battery or the Thor VM2 does not power
on.
The UPS status LED and the Battery Control Panel can be used to monitor the state of the UPS battery.

Backup Battery

The Thor VM2 has a permanent Lithium battery installed to maintain time, date and CMOS setup information for a minimum of
90 days. The lithium battery is not user serviceable and should last four years with normal use before it requires replacement.
Note: The backup battery should only be changed by authorized service personnel.

Fuse

The Thor VM2 uses an 8A time delay (slow blow), fuse that is externally accessible and user replaceable. The fuse is located
on the back of the Quick Mount Smart Dock. The fuse is accessed by unscrewing the cap as indicated below.
Should it need replacement, replace with same size, rating and type of fuse – Littelfuse 0215008.MXP or equivalent.
Fuse has voltage on it even when power is off. Always disconnect input power before changing the fuse.
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