ALIANT Battery Protection System

Simply attach the battery to the positive pole (+) and the setup is complete!
Simply turn the main switch (ON - OFF switch button in yellow in the image) to ON and activate the system, and the ALIANT 12SB200 will connect the installed battery to the connection factor.
Reliably protects against discharge.
12SB200 activates when the battery voltage reaches 11.9V due to various factors (weak current discharge by immobilizer, discharge by dark current, etc.) and continues for a certain period of time (25 seconds).
This cuts off the battery from discharging and prevents the battery from dying out.

For more details please go through the below link...
ALIANT Battery Protection System