The IDC25 allows you to charge your 12V second/auxiliary deep cycle battery on the go, simultaneously from solar and your alternator (9-32V) inputs. Providing an advanced 3 stage charging process to produce a safe and comprehensive charge, this charger is the perfect power solution for your outdoor and offroad adventures.Sealed to IP67, the IDC is dust, splash and shock proof and can safely operate in extreme temperatures up to 80°C meaning you can conveniently install this in your engine bay. Multi-Chemistry compatible, just set the charging profile to the battery type: Wet, Calcium AGM or Gel.ALTERNATOR INPUT VOLTAGE:9-32VdcMAX SOLAR INPUT:28Vdc, 385WOUTPUT CURRENT:Input 9-11Vdc 20A,Input 11-32Vdc 25ABACK DRAIN ON AUX BATTERY:9.5-10.5mACHARGER CONTROL:Gel: 14.1V,AGM: 14.4VWet: 14.7V,Calcium: 15.4VBATTERY CAPACITY:75-300AhBATTERIES SUPPORTED:Gel, AGM, Wet & CalciumSMART ALTERNATOR:12V: Turn On: 12.2-20V24V: Turn On: 24.4-32V / Turn Off: <11.9VTurn Off: <24VCONVENTIONAL ALTERNATOR:12V: Turn On: 13.4-20V24V: Turn On: 26.8-32V /Turn Off: <12.8VTurn Off: <25.6VOPERATING TEMPERATURE;-10°C to 80°C