Ultra - fast Maximum Power Point Tracking (MPPT)\ - Especially in case of a clouded sky, when light intensity is changing continuously, an ultra-fastMPPT controller will impr ove energy harvest by up to 30% compared to PWM charge controllers and by up to 10% compared to slower MPPT controllersLoad output- Over-discharge of the battery can be prevented by connecting all loads to the load output. The load output will disconnect the load when the battery has been discharged to a pre-set voltage. Alternatively, an intelligent battery management algorithm can be chosen: see Battery Life. The load output is short circuit proof. Some loads (especially inverters) can best be connected directly to the battery, and the inverter remote control connected to the load output. A special interface cable may be needed, please see the manual.- Battery Life: intelligent battery management- When a solar charge controller is not able to recharge the battery to its full capacity within one day, the result i s often that the battery will continu ally be cycled between a ‘partially charged’ state and the ‘end of discharge’ state. This mode of operation (no regular full recharge) will destroy a lead-acid battery within weeks or months.The Batter Life algorithm will monitor the state of charge of the battery and, if needed, day by day slightly increase the load disconnect level (i.e. disconnect the load earlier) until the harvestedsolar energy is sufficie nt to recharge the battery to nearly the full 100%. From that point onwards the load disconnect level will be modulated so that a nearly 100% recharge is achieved about once every week.- Programming, real- time dataand historydisplay options- Modern Apple and Android s martph ones, tablets, macbooks and other devices: see the VE.Direct Bluetooth Smartdongle and the MPPT app discovery sheet for screenshots.- ColorControl panel- Battery voltage: 12/24V Auto Select- Rated charge current 15A - Nominal PV power, 12V 1a,b) 220W - Nominal PV power, 24V 1a,b) 440W - Max. PV short circuit current 2) 12A - Automatic load disconnect: Yes, maximum load 15A - Peak efficiency 98 % - Self-consumption: 12V: 20mA 24V: 10 mA- Charge voltage absorption 14,4V / 28,8V (adjustable)- Charge voltage float 13,8V / 27, 6V (adjustable)- Charge algorithm: multi-stage adaptive- Temperature compensation-16 mV / °C resp. -32 mV / °C- Continuous/peak load current 15A / 50A Low voltage load disconnect 11,1V / 22,2V or 11,8V / 23,6V or BatteryLife algorithm- Low voltage load reconnect: 13,1V / 26,2V or 14V / 28V or Battery Life algorithm- Protection: Battery reverse polarity (fuse)Output short circuit/ Over temperature - Operating temperature -30 to +60°C (full rated output up to 40°C)- Humidity 95%, non-condensingWeight:0,5 kgDimensions (h x w x d):100 x 113 x 40 mm