Deep Discharge Protection

If mains power to the SPCP355.300 Smart PSU fails for a prolonged period, each battery supplies power to the PSU 12V DC power outputs for a finite time. The batteries eventually discharge. To prevent a battery discharging beyond recovery, the SPCP355.300 Smart PSU disconnects the battery if the measured voltage drops below 10.5V DC. The battery can then be recharged after the mains power is restored.