Optimized Title: 40A MPPT Solar Charge Controller for Lead-acid & Lithium Batteries

Keeper 40A Solar Charge Controller MPPT (12V/24V Auto)

The Keeper 40A solar charge controller is an advanced MPPT (Maximum Power Point Tracking) device designed to optimise the charging process for 12V and 24V battery systems. Boasting an impressive tracking efficiency of no less than 99.5%, this high-quality solar charger can achieve a maximum conversion efficiency of 97%.

One of the standout features of this solar charge controller is its super-fast maximum power tracking speed, ensuring efficient power harvesting while maintaining optimal tracking performance. The controller accurately identifies and tracks the maximum power point of multi-wave peak, allowing for reliable maximum input power from the PV array, thereby enhancing the safety of the equipment.

The Keeper 40A solar charge controller offers automatic voltage identification, with a wide PV array maximum power point operating voltage range. The integrated LCD dynamically displays the operation data and working status of the equipment, providing users with real-time insights.

Versatile in its functionality, the controller offers various load control modes, including general mode, light control mode, dual-time mode, pure charger mode, and timing mode. Users can also select between lead-acid and lithium charging processes, depending on their battery requirements.

For enhanced communication capabilities, the controller supports RS485 methods, allowing users to maximize the communication needs for different applications. Additionally, the dual USB port charging feature provides convenient power access for various devices.

Regarding the technical specifications, the Keeper 40A solar charge controller has a rated charge current of 40A and supports a system voltage of 12V/24V AUTO. The voltage range of the battery is 8-32V, accommodating both lead-acid and lithium batteries. The maximum open voltage of the PV module is 100V, with a maximum solar power of 480W when the battery is 12V and 960W when the battery is 24V.

The controller's charge loop voltage drop is ≤0.29V, and it operates within a temperature range of -20°C to +55°C, with a working humidity of ≤95% (non-condensing). The protection class of the device is IP30, ensuring adequate protection against environmental factors.

The Keeper 40A solar charge controller offers a clear display and simple wiring, making it easy to use and install. With its advanced features and reliable performance, this solar charger is an excellent choice for off-grid and solar-powered applications.

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