HESA BATTERY CHARGER MODEL CAR 12-3S 20A

Scheda Tecnica

CAR12-3S-20A
12VDC 20A Description HESA's 3-step chargers work in three different modes. An LED-indicator with three different colors shows the charger mode. Unlike the so called taper chargers, these models charge with a constant current in the first mode. When the battery voltage rises to the maximum cycle voltage during charging, the chargers do not immediately change to standby mode. Instead, a timer starts and the charger remains in constant voltage mode until the timer period has elapsed. When the timer starts, the battery is already charged to 80 - 90% of full capacity and can be used at this point if desired. The time boost period ensures, however, that the battery will receive the remaining 10 to 20% capacity in a very short time compared to chargers not having this feature. The LED-indicator changes to yellow when the timer starts, and changes again to green when the timer period is out. At this point the constant voltage level is reduced to a safe value where the battery can be left for an unlimited time without risk of overcharge. This is the float charge or standby mode. Features • Compact high-quality chargers • 3-step charge control for safe, fast charging and stand-by charge • LED - indicator with three different colours shows the charge status • Built-in timer for prolongued boost - "absorption charge" • Charge current not affected by fluctuations in mains voltage • Leads with battery clips • Low leakage current from battery when mains disconnected • Protected against reversed polarity and short circuit proof • Automatic start of new charging cycle when battery voltage falls due to loading Specifications Model CAR12-3S-20A Imput voltage 190-264VAC Charge voltage 14.7V (timer) 13.7V (float) Max output power 295W Current limit (max.) 20A Switch frequency 67 kHz Input surge current limitation <35A Leakage current with mains disconnected 0.5mA Protection Against reversed polarity and short circuit Operating temperature 25°C÷+40°C Ripple <100mVp-p Temperature compensation Yes,with external heat sensor Efficiency (at full load) >83% Insulation class I Indication: - Red (constant current, boost) 20A - Yellow (constant voltage, timer) 14.7V - Green (constant voltage, float) 13.7V Timer 4 h ± 30 min. Weight g 1550