SMA Home Storage HS-BM-3.28-10 - Modular Extension of the Battery Modules

4 Product Overview
SMA Solar Technology AG
Operating Manual 21HS-BM-3.28-10-BE-en-10
Range Inverter parameters Inverter behavior
C
Device > Self-consumption > Lower battery
discharge limit (BatChaSttMin)
In this range, the battery is no longer discharged,
even in battery-backup operation.
D
Battery > Areas of application > Minimum
width of deep discharge protection area (Ba-
tUsDm.DschProDmMin)
The value specifies which percentage of the Real
SoC is to be reserved as deep discharge protec-
tion. This value corresponds to a User SoC of 0%.
When the state of charge is displayed as 0% (User
SOC), the battery is actually (Real SOC) still
charged to as much percentage as this value indi-
cates.
4.7 Modular extension of the battery modules
BATTERY
MODULE
BATTERY
MODULE
BATTERY
MODULE
BATTERY
MODULE
BATTERY
MODULE
HYBRID
INVERTER
DC– AC
DC+ DC+DC–DC+DC–
Figure 6: Modular design of the battery modules
After commissioning, battery modules can be extended both in terms of the energy content and the charging and
discharging capacity. An extension of the battery modules after 2 years is no longer possible since mixing used and
new batteries can result in reduced power and even malfunctions.