SKU: POW-Keeper1240

12V/24V Auto 40A MPPT Solar Charge Controller

Sale price$72.00 USD Regular price$89.00 USD
Save 19%
4.8

PowMr POW-Keeper1240 is a compact 20A~40A MPPT solar charge controller with auto 12V/24V detection, multiple load control modes, compatible with GEL/SLD/FLD/LiFePO4 batteries, featuring dual 5V/1A USB ports, primarily for small off-grid systems, RVs, outdoor lighting, and portable solar applications.

Overview

Efficient MPPT Technology

This 40A solar charge controller incorporates advanced MPPT technology, ensuring maximum power point tracking efficiency of over 99.5%. With high-quality components, it achieves an impressive maximum conversion efficiency of up to 97%, enhancing system performance and optimizing solar energy utilization.

Automatic Voltage Identification

The 40A MPPT solar charge controller is designed to seamlessly support Sealed, Gel, Li (NiCoMn) O2, and Flooded batteries. It can automatically identifies the 12volt and 24volt systems. For Lithium batteries, manual setting is required. This intelligent feature streamlines installation and ensures compatibility with different battery types.

Enhanced Control and Monitoring

It offers 24-Hour Working, Light Control, and Light+Time Control options, allowing you to customize the operation to suit your specific needs. Additionally, it includes battery temperature compensation and power statistics recording functions, enabling precise management. The dynamic LCD display provides real-time operation data and equipment status for convenient monitoring and control.

Full Sytem Protection and Precise Charging

Equipped with a temperature sensor, POW-KEEPER series precisely detects the battery's temperature and adjusts charging accordingly. Safeguards against overcharging, over-discharging, overload, and short circuiting offer comprehensive protection for your system and components, ensuring their longevity and efficient operation.

Product comparison

40A MPPT charge controller for 12/24V battery
12V/24V Auto 40A MPPT Solar Charge Controller Sale price$72.00 USD Regular price$89.00 USD
45A MPPT charge controller for 12/24V battery
45A 12V 24V MPPT Solar Charge Controller Sale price$87.00 USD Regular price$149.00 USD
45A MPPT charge controller for 12/24V battery
45A 12V 24V MPPT Rotary Knob Solar Charge Controller Sale price$59.00 USD Regular price$79.00 USD
Model

POW-Keeper1240

POW-M45-PRO

POW-RV1245A

Nominal System Voltage

12/24

12/24

12/24

Rated Charging Current

40

45

45

12V System

520/<100

540/<100

540/<100

24V System

1040/<100

1080/<100

1080/<100

Specifications

Nominal System Voltage (V)

12/24

Rated Charging Current (A)

40

12V System (W/V)

520/<100

24V System (W/V)

1040/<100