Horis User Manual
2.7
Internal Backup Battery
Figure 14:
Illustration of AHRS levelling procedure.
2.7
Internal Backup Battery
Since May 2021 Horis 57 mm could be ordered with
internal
backup
battery. Horis 80 mm does not have this option yet and may be only
equipped with external backup battery (UPS-L).
If Horis is ordered with internal backup battery the battery module
is installed into the Horis. The battery module consists of power
electronics and battery cell.
2.7.1
Battery Module
The battery module inside Horis is complete system for battery charg-
ing, protection and monitoring. Backup battery module inside Horis
has its characteristics and limitations listed in Table 8. Module is
using multi level protection to avoid use of battery in any situation
which would damage the battery cell.
Internal battery cell specification is given in Table 9. Chemistry of
the cell is based on lithium ferrophosphate and it is cobalt-free and
nickel-free. This type of lithium based battery is considered much
safer and it is also approved for aviation use. We are NOT using
more common Li-Ion or Li-Po batteries. The main drawback of this
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©
Kanardia
2021
Summary of Contents for Horis
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