SEPARATE, PRIORITIZE AND BOOST BATTERIES AND EQUIPMENT SMARTPASS 120S is a 120A Power Management Solution which distributes, controls and maximizes the available energy from your alternator to power service batteries and consumers. SMARTPASS 120S handles all 12V batteries between 28–800Ah. The SMARTPASS 120S’s Battery Guard function ensures that critical equipment such as radio, emergency lights and navigation systems always have power and take priority when the voltage on the service battery is low disconnecting non-critical consumers. The unit’s Battery Guard will protect your service battery from total discharge and built in over temperature protection reduces charge current before the battery temperature gets too high. SMARTPASS 120S is compatible with the D250SA and D250SE 20A on board chargers. Input: 11.5–23V, Max 120A (350A temporarily for 10 seconds) Output: Max. 120A (350A temporarily for 10 seconds) Back current drain: Less than 7Ah/month Ambient temperature: -4°F to 122°F (-20°C to 50°c) Battery types: 12V: WET, EFB, Ca/Ca, MF, AGM, GEL, LiFePO4 Battery capacity: 28–800Ah Insulation Class: IP65 (splash and dust proof) Warranty: 2-year warranty
