Maximum PV power: 12V 650W / 24V 1300W / 48V 2600W --- max. Nominal charging current 45 A --- 150 V maximum PV open-circuit voltage PV connection: 35 mm² screw terminals / AWG2 --- Battery connection: 35 mm² --- Dimensions (H x W x D): 185 x 250 x 95 --- Weight: 3.0 kg --- Data communication sport: VE.Direct or Bluetooth (integrated) --- Temperature compensation: -16 mV / -32 mV / -68 mV / °C Parallel operation with other (identical) regulators possible - adjustable constant charging voltage - adjustable trickle charging voltage - suitable for AGM, GEL, lead acid calcium-calcium and lithium batteries Fully programmable charging algorithms that are activated and switched via a switch on the housing - multi-stage adaptive charging algorithm - day/night time control light insulation option Ultra-fast MPP tracker ensures the best possible yield even when the sky is covered, automatic detection of the MPP voltage in partial shade ensures further yield improvement