Fast Shipping On All Items 30 Days Money Guarantee Customer Support Excellent Service 100% Satisfaction Satisfaction Guaranteed 40Amp Solar Controller Max Input 100V, 520W/1040W for Lead-Acid, Lithium Batteries and Load Timer Setting(Come with MT52+TS-R+RS485) Specification 7.99 inches x 16.89 inches x 3.5 inches. Weight: 1.9 kg Item Description Negative Ground Controller featuring advanced MPPT technology with high tracking efficiency up to 99.5% and peak conversion efficiency of 98%. Maximizing the energy from solar panels to charge your system MPPT Charge Controller protection built-in against reverse polarity, overcharging, over-discharging, overload, short-circuiting, and reverse current. It protect the battery from being over-charged by the solar modules and over-discharged by the loads 40A Solar Charge Controller charging process has been optimized for long battery life and improved system performance.It includes a 4-stage battery charging (Bulk, Boost, Float, and Equalization) and temperature compensation increase your battery life and improve your system's performance Solar Controller MPPT support PC software,APP and MT-50. Auto identifying 12V/24V DCsystem voltage.Also compatible with various Deep Cycle battery options: Sealed, Gel, Flooded and Lithium. Multiple load control method MPPT Controller 40a with blackligh LCD screen for displaing system information and working condition. Die-cast aluminum design allows for efficient heat dissipation Product Description The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Installation video of EPEVER MPPT Controller Step: Connect the system in the order of 1.Battery-- 2. Load-- 3.PV array, and disconnect the system in the reverse order 3. 2. 1. NEVER connect the soalr panel array to the controller Without/Before a Battery. DO NOT connect any inverter/ wind/Alternator or Charger into the charge controller! If the remote temperature sensor is not connected to the controller,, the default setting for battery charging or discharging temperature is 25 C without temperature compensation. Multiple Monitoring Methods Support Monitoring and Setting the Parameters via the APP or PC software Controller MT50 Meter Wifi/Bluetooth Module PC Connection steps 1.Battery- 2. Load- 3.PV array, disconnect in the reverse order DO NOT connect any inverter/ wind/Alternator or Charger into the charge controller! Related Products Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 361 4.5 out of 5 stars 381 4.3 out of 5 stars 331 4.0 out of 5 stars 5 4.0 out of 5 stars 5 4.4 out of 5 stars 40 4.8 out of 5 stars 1,078 Price $124.99$124.99 $156.99$156.99 ? ? ? $129.99$129.99 $43.99$43.99 Support Batteryless Run? ? ? ? ? ? ? ? Built in Bluetooth ? ? ? ? ? ? ? Support parallel operation ? ? ? ? ? ? ? System Voltage 12V/24V 12V/24V 12V/24V/36V/48V 12V/24V/36V/48V 12V/24V ------ ------ Supported battery types? lithium and lead-acid battery lithium and lead-acid battery lithium and lead-acid battery lithium and lead-acid battery lithium and lead-acid battery ------ ------ Return Policy ? We guarantee against any defective or misrepresented products. The original shipping label must be sent back to us to validate the return. A full refund can only be issued during the first 30 days upon receipt of the product. ? Returns will be voided if the product is mishandled or physical damaged by customer. ? Buyer will be responsible for all kind of return shipping/shipment to the seller for resolving the problem. ? Returns made for all non-defective, undamaged products are subject to a 15% restocking fee. Shipping and handling fees are absolutely non-refundable. If an item is returned to us due to an address issue, we do charge a reshipping fee to reship. If you would like a refund, there will be a 15% restocking fee applied. ? All returned products need to be assigned an RMA # (Return Merchandise Authorization #) prior to return. Please contact us through's messaging system to obtain an RMA# for the return. Any returned product without an RMA # on package will not be accepted or processed. ? Please contact us before returning. Feedback ? We appreciate your feedback and our system will automatically leave feedback for you after bid ends. ? Please contact us through message center if you have any problems, we will always try our best for 100% customer satisfaction. Payment Options Shop With Confidence