100% MPPT controller. Intelligent Maximum PowerPoint Tracking technology. Built-in controller with high performance. Automatic battery voltage detection 12V/24V/48V. Three-stage charging optimizes battery performance. Multi-function LCDs. Output limited current protection. Overcharge protection. Over-temperature protection. Easy to be mounted . No need for an extra device to be in parallel. No limited quantity to be in parallel. Suitable for battery types of sealed lead acid, vented, and Gel battery. Configure the system parameters remotely and track the real-time data online. Compatible with iOS and Android devices. Protection Function: Temperature Protection:75/167; Fan-on Temperature: 45/113; Fan-off Temperature:Less than 40/104; PV Reverse Polarity Protection:Yes (When Voc Less than 100V only); PV Over-voltage Protection:Yes(When Voc 180V, the controller be burnt.); Battery Overcharge Current Protection:Yes; Battery Overcharge Voltage Protection:Yes; Battery Low Voltage Protection:Yes Enclosure: Acoustic Noise:less than equal 40dB. Cooling Way:Forced air cooling. Components:Industrial grade. Size:21.5x11.5x5cm/8.46x4.52x1.96 in. Net Weight:1.3kg/2.86lb. Safety:EN 62109-1 EN 60730-1 EN IEC 61000-6-3 EN IEC 61000-6-1. Protection Category:IP21. Environmental Condition:Indoor. Operating Temperature:-20-+55/-4-+131. Storage Temperature:-40-+75/-40-+167 Output Specification: Selectable Battery Type: Vented/Sealed/Gel/NiCd battery (Defined voltage by user) For a 12V battery, you could set the voltage from 12V-17V. For a 24V battery, you could set the voltage from 24V-34V. For a 48V battery, you could set the voltage from 48V-68V. Overcharging Protection Voltage: 12V system (15V), 24V system (30V), 48V system (60V). Rated Output Current:60A. Output Voltage Ripple-:100mV. Output Voltage Accuracy:less than equal 1% Model No.:60A-V123 Charging Technology:MPPT/Maximum power point tracking Charging Mode: 3-stage: Constant current(MPPT) Constant voltage(Absorption voltage) Floating charge System Type:DC12V/24V/48V Recognition automatically Automatic Select Voltage Range: 12V system (DC9V-DC15V) 24V system (DC18V-DC29V) 48V system (DC40V-DC60V) Soft Start Time:less than equal 1S Dynamic Response and Recovery Time:100us Max Efficiency: equal 98.2% PV Utilization: equal 99% Self Consumption:less than equal 1.2W Input Specification: Voc Range of PV(Make sure the Voc of PV meets the requirement as right. Voc is 1.5 or 2 times than battery, then it's the best efficiency.) 12V system (DC20V-DC80V) 24V system (DC37V-DC105V) 48V system (DC72V-DC160V) Maximum PV Module Open Circuit Voltage(Never over max PV Voc) For 12V battery: 80V For 24V battery: 105V For 48V battery: 160V The Maximum Nominal PV power: 12V system (720W) 24V system (1440W) 48V system (2800W) Colour:As Shown Material:Aluminum Alloy Package Contents: 1 * Solar Panel MPPT Charge Controller Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.