... PWM,Boost Float5. External Temperature compensation sensor 6. Battery capacity set 7. LCD display for charging discharge ... recovery 13.2v, 2*13.2VTemperature compensation_5mv/°C/2V,Battery Low 12.0V, 2*12VLoad disconnect voltage11. ... C to +55°C,Commercial Grade: -5°C to +50°C TropicalizationPCB was spray cover.Teminals corrosion protected Protection classIP22Case MaterialABSLED Display Charging, Battery ...