This intelligent controllers built-in DSP controller with high working performance, suitable for various off-solar applications, it protects the battery from being over-charged and over-discharged. Features a innovative MPPT intelligent tracking algorithm that maximizes the energy from the solar PV module(s) and recharge the battery, with high tracking efficiency up to 99% and max conversion efficiency of 98%. Automatically detect 12/24/36/48V direct current system voltages, reliable and practical to use. Suitable for battery types such as leadacid, colloid, and lithium battery, etc..    Features:  This intelligent controllers built-in DSP controller with high working performance, suitable for various off-solar applications, it protects the battery from being over-charged and over-discharged.  Features a innovative MPPT intelligent tracking algorithm that maximizes the energy from the solar PV module(s) and recharge the battery, with high tracking efficiency up to 99% and max conversion efficiency of 98%.  3-stage recharging ways design, constant current (MPPT), constant voltage (absorption voltage), float recharge.  4 battery recharging modes design for a quick, efficient battery recharging process, they are Bulk-Charge/Boost-Charge/Float-Charge/Equalization.  LCD display with backlight, and there are 4 buttons to maneuver though the menus, and support adjust parameter value, and has restore function.  The recharging process has been optimized for long battery lifespan and improved system performance.  The comprehensive self-diagnostics and electronic protections functions can prevents damage from installation mistakes or system faults.  Automatically detect 12/24/36/48V direct current system voltages, reliable and practical to use.  Multiple protections, overcharging, over-discharging, overload, and short circuit, and reverse are protected.  Suitable for battery types such as leadacid, colloid, and lithium battery, etc..  It has a reactivation feature to awaken a sleeping lithium battery.  The controller can be mounted using the existing mounting holes or using the included mounting brackets.  Die-casting aluminum design to ensure fine heat dissipation performance.    Specifications:  Name: Solar Controller  Material: plastics+aluminum    Model: POW-M60-PRO  Nominal system voltage: 12/24/36/48V Auto Recognition  Rated battery current: 60A  Rated load current: 6A  Max. capacitive load capacity: 10000μF  Battery voltage: 9V-70V  Max solar input voltage: 190 VDC (25°C), 185VDC (-25°C)  Max. power point voltage ranges: Battery voltage +2V to 120V  Max. solar input power: 720W/12 V; 1440W/24V; 2100W/36V; 2800W/48V  Self-consumption:  0.7W- 1.2W  Conversion efficiency: ≤ 98%  MPPT tracking efficiency:  > 99%  Temp. compensation: -3mV/°C/2V (default)  Mounting holes: 4* φ10mm  Max terminal size: 25m㎡ 4 AWG  Working temperature: -35℃ to 45℃  Humidity ranges: ≤95% (NC)  Enclosure: IP32  Altitude: <3000m  Item size: 216 * 115 * 50mm / 8.50 * 4.53 * 1.97in  Item weight: 1330g / 2.93lb  Package size: 230 * 165 * 72mm / 9.06 * 6.50 * 2.