The battery mode of this product ensures a consistent outputVoltage. You can also choose from different outputVoltages in battery mode. The 1-Battery-Concept charges and monitors each 12 V battery separately, maximizing their lifespan. Precise battery charging is achieved through the use of a temperature sensor. Additionally, there is a battery size selector for both small and large batteries. The product offers 50% BonusPower, providing 30A of power for up to 4 seconds. It also has a high breaking capacity for branch protectors. Furthermore, it features smart battery diagnostics and monitoring functions.