F
F
l
l
i
i
g
g
h
h
t
t
M
M
a
a
n
n
u
u
a
a
l
l
S
S
u
u
p
p
p
p
l
l
e
e
m
m
e
e
n
n
t
t
f
f
o
o
r
r
t
t
h
h
e
e
s
s
a
a
i
i
l
l
p
p
l
l
a
a
n
n
e
e
Document No.: G304eS/AFMSupp, R01
Date of Issue: 11/17
7-8
H
P
H
Ltd.
7.10.7 FCU control unit description
FCU control unit serves for controlling of FES power-plant. FCU unit
enables power setting of motor, monitoring of remaining energy in
accumulators and monitoring of important power-plant parts
temperatures. In case of improper use of power-plant, low voltage in
accumulators, warnings are displayed at FCU unit.
7.10.8 Battery packs installation
Two battery packs are installed aft the wing in battery compartment.
Battery packs can be removed after flight from fuselage compartment
for recharging of batteries. During flight there are battery packs fixed
by strutting in compartment.
7.10.9 Battery pack description
FES battery pack is build from 14 cells which are wired in serial. For
FES application two packs are needed. Lithium Polymer (LiPo) cells
produced by Kokam manufacturer are used.
Each Battery pack is equipped with internal BMS (Battery
Management System) which is fixed above the cells, and is equipped
with 16 LEDs to monitor its operation.
Basic technical data of battery packs:
Weight
15,5 kg
Box dimensions
154x220x257 mm
Cell type
SLPB100216216H
Capacity of each cell
43Ah
Number of cells
14
Energy storage capacity
2,1 kWh
Max total voltage
58,3 V
Min total voltage
42 V
Max current
250 A
