16 Technical Data
SMA Solar Technology AG
Operating manual
177
SI44M-80H-13-BE-en-15
SI4.4M-13
SI6.0H-13
SI8.0H-13
Rated discharging current
75 A
103 A
136 A
Maximum battery charging current
75 A
110 A
140 A
Battery type
Lead-acid battery:
FLA, VRLA lithium-
ion battery
19)
Lead-acid battery:
FLA, VRLA lithium-
ion battery
19)
Lead-acid battery:
FLA, VRLA lithium-
ion battery
19)
Battery capacity range of lead-acid batteries
100 Ah to
10000 Ah
100 Ah to
10000 Ah
100 Ah to
10000 Ah
Battery capacity range of lithium-ion batteries
50 Ah to
10000 Ah
50 Ah to
10000 Ah
50 Ah to
10000 Ah
Recommended minimum battery capacity C10 in
systems for increased self-consumption
100 Ah
100 Ah
100 Ah
Recommended minimum battery capacity C10 in
battery-backup systems
100 Ah
120 Ah
160 Ah
Recommended minimum battery capacity C10 in off-
grid systems
150 Ah
190 Ah
250 Ah
Minimum capacity recommended for lead-acid bat-
teries C10 per 1000 Wp output of the PV system in
off-grid systems
100 Ah
100 Ah
100 Ah
Minimum capacity recommended for lithium-ion bat-
teries C10 per 1000 Wp output of the PV system in
off-grid systems
50 Ah
50 Ah
50 Ah
Charge control for lead-acid batteries
IUoU charging be-
havior with auto-
matic full charge
and equalization
charge
IUoU charging be-
havior with auto-
matic full charge
and equalization
charge
IUoU charging be-
havior with auto-
matic full charge
and equalization
charge
DC connection
Terminal lug M8,
20 mm to 25 mm
wide
Terminal lug M8,
20 mm to 25 mm
wide
Terminal lug M8,
20 mm to 25 mm
wide
Permitted conductor cross-section:
50 mm² to
95 mm²
20)
50 mm² to
95 mm²
20)
50 mm² to
95 mm²
20)
Maximum connectable conductor cross-section
95 mm²
20)
95 mm²
20)
95 mm²
20)
Cable diameter
14 mm to 25 mm
14 mm to 25 mm
14 mm to 25 mm
Torque
12 Nm
12 Nm
12 Nm
19)
The lithium-ion battery must be approved for use with the Sunny Island (see technical information at “List of Approved Batteries”).
20)
In the event of a cross-section of 95 mm², observe the maximum cable diameter.
