PowMr 40 Amp 12V 24V Auto 40A MPPT Solar Charge Controller Solar Charging Controller for Lead Acid Battery

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PowMr 40 Amp 12V 24V Auto 40A MPPT Solar Charge Controller Solar Charging Controller for Lead Acid Battery

Quick Details
Place of Origin: Guangdong, China Brand Name: PowMr
Model Number: POW-Keeper1240 Type: MPPT, PowMr MPPT 40A
Application: Charger Controller, Solar Working Station, Lighting Controller, Solar System Controller Work Time (h): Accept Setting
Max PV Voltage: 100V Certificate: CE
Warranty: 2 years Product name: MPPT 40A Solar Charge Controller
Battery Voltage: 12V/24V Auto Voltage range of battery: 8-32V
Max open voltage of PV module: 100V Battery type: User default, Sealed, Flooded, GEL, LiFePO4
LCD Temperature: -20°C~+70°C Protection class: IP30
Working humidity: ≤95% No condensation Static loss: <9.2mA 12V; <11.7mA 24V

Product Description

Thank you for selecting the MPPT series solar charge controller with the most advanced MPPT control algorithm the maximum power point of the PV array can be quickly tracked in any environment so that it can get the maximum energy from the solar panel and significantly improve the utilization of energy in the solar system. The machine has the dual-display function of LCD and Remote header (optional) and a standard communication interface, convenient for user extension applications and satisfies different monitoring needs to the maximum extent. It can be used in communication base stations, home power supply systems, traffic lights, solar street lamps, courtyard lamp systems, etc.

It comes with a number of outstanding features, such as:

  •  Advanced MPPT maximum power point tracking technology, the tracking efficiency is no less than 99.5%. 
  •  High-quality components are used to improve the system performance, and the maximum conversion efficiency can reach97%. Superfast maximum power tracking speed while ensuring tracking efficiency. 
  •  Accurate identification and tracking of the maximum power point of the multi-wave peak. 
  •  Reliable maximum input power of PV array to ensure the safety of the equipment. 
  •  Wide PV array maximum power point operating voltage range. 12/24v automatic voltage identification
  •  The LCD is designed to dynamically display the operation data and working status of the equipment. 
  •  Various load control modes: general mode, light control mode, dual time mode, pure charger mode, and timing mode. 
  •  Seal, GEL, Flooded, LifePO4, and Li (NiCoMn) O2 charging process can be selected. 
  •  The function of battery temperature compensation. 
  •  Power statistics recording function. 
  •  Use the RS485methods to maximize the communication needs of different occasions. 
  •  Support PC monitor, external display unit, and other peripherals, realize real-time data view and parameter setting function.

Order of connection:

① Connect batteryNotice: The battery terminal shall be installed with insurance, and the installation distance shall not exceed 50mm. ② Connected Load
③ Connect pv array
④ Controller is powered on Connect the battery, identify the voltage of the control system, and observe whether the display screen is lighted. If it doesn't work or the display is abnormal, refer to section 6 for troubleshooting.

NOTICE: This series of MPPT is a common positive: controller, PV array, battery, and a load of the positive pole can be grounded at the same time.

NOTICE: If the inverter or other starting current is loaded. Sin the system, please connect the inverter directly to the battery. Do not connect with the controller's load terminal.


Rated charge current20A30A40A
System rated voltage12V/24V Auto work
Voltage range of battery8-32V
Max open voltage of PV module55V
Battery typeUser default, Sealed, Flooded, GEL, LiFePO4
Equalized charging voltageMaintenance-fee lead-acid battery 14.6V, GEL: No: Lead-acid flooded battery: 14.8V
Absorption charging voltageMaintenance-fee lead-acid battery 14.4V, GEL: 14.2; Lead-acid flooded battery: 14.6V
Floating charging voltageMaintenance-fee lead-acid battery, GEL, Lead-acid flooded battery: 13.8V
Low voltage re-connection (LVR)Maintenance-fee lead-acid battery, GEL, Lead-acid flooded battery: 12.6V
Low voltage disconnection (LVD)Maintenance-fee lead-acid battery, GEL, Lead-acid flooded battery: 10.8V
Static loss<9.2mA 12V; <11.7mA 24V
High voltage disconnection (HVD)16V (24V x 2)
Duration of absorption charging2 Hours
Light control voltage5V
Charge loop voltage drop<0.29V
LCD Temperature-20°C~+70°C
Operating Temperature-20°C-+55°C (To run at full rated current continuously)
Operating Temperature-20°C-+55°C (To run at full rated current continuously)
Working humidity<95% No condensation
Protection classIP30
Dimension (LxWxH) mm123x178x48135x202x55150x220x67

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