3.3.5. Two Smart BatteryProtects for load and charger control
It is also possible to have several Smart BatteryProtect in one system, for example, to control chargers and loads at the same
time.
If the BMS signals a cell undervoltage, the SBP responsible for the load will disconnect the load from the battery to protect the
battery from further discharge.
If the BMS signals a cell overvoltage or too low temperature to charge the lithium battery, the SBP will disconnect the charger
from the battery immediately.
Please also note the correct connection of the SBPs: always follow the current flow from IN to OUT. The positive terminal of the
charger goes to the IN input of the SBP.
DC loads
SBP-65 charge
SBP-65 load
Two Smart BatteryProtects take control of a charger and a load circuit
3.3.6. Smart BatteryProtect Alarm output wiring
The alarm output can be wired e.g. to an LED, a buzzer or a relay. For this, the Smart BatteryProtect must be programmed in the
respective mode because of slight differences in the behavior. See also the section
for more details.
Make sure that the LED, buzzer and relay match the system voltage.
DC loads
LED
Buzzer
Relay
Wiring an LED, Buzzer or Relay to the Smart BatteryProtect output
Smart BatteryProtect 12/24V
Page 8
Installation and wiring examples