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PowMr
SKU ST-POW-KEEPER1240

PowMr 40A MPPT Solar Charge Controller

Model
POW-Keeper1240
Category
Solar Charge Controllers
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The PowMr 40A MPPT Solar Charge Controller is a highly efficient and intelligent solution designed to maximize the performance and longevity of off-grid and hybrid solar power systems. Engineered with advanced Maximum Power Point Tracking (MPPT) technology, this controller ensures that your solar panels operate at their peak efficiency, providing optimal energy output to your battery bank under all conditions, including low light or cloudy days.

Supporting both 12V and 24V battery systems, the PowMr 40A MPPT controller is ideal for a wide range of applications such as residential solar setups, commercial installations, solar backup systems, small farms, workshops, and remote off-grid locations.

Advanced MPPT Technology for Maximum Solar Efficiency

At the heart of the PowMr 40A controller is high-precision MPPT technology, which constantly tracks the optimal voltage and current point of the connected solar panels. Unlike traditional PWM controllers that waste excess voltage, MPPT controllers convert it into usable charging current, significantly improving system efficiency.

With MPPT tracking efficiency of up to 99% and peak conversion efficiency of 98%, the PowMr 40A ensures that your solar system extracts maximum energy from available sunlight. This leads to faster battery charging, improved energy utilization, and reduced reliance on grid power or backup generators.

Automatic Voltage Detection and Wide Compatibility

The PowMr 40A automatically detects the battery system voltage (12V or 24V) and adjusts its operation accordingly, making installation simple and user-friendly. This wide voltage compatibility ensures the controller can be seamlessly integrated into new solar setups or used to upgrade existing systems.

This controller is suitable for:

  • Small 12V residential solar systems
  • 24V home or commercial solar setups
  • Battery banks for RVs, cabins, and off-grid homes

Intelligent Multi-Stage Battery Charging

To ensure battery longevity and safe operation, the PowMr 40A employs a multi-stage charging algorithm, typically including:

  • Bulk Stage: Provides maximum charging current for rapid battery charging.
  • Absorption Stage: Maintains voltage to safely complete the charging process.
  • Float Stage: Keeps batteries fully charged without overcharging.

This intelligent approach minimizes battery stress, improves charge efficiency, and extends overall battery life.

Wide Battery Compatibility

The PowMr 40A MPPT Solar Charge Controller supports a variety of battery types, making it highly versatile:

  • Flooded Lead-Acid batteries
  • AGM batteries
  • Gel batteries
  • Lithium-ion batteries
  • LiFePO4 (Lithium Iron Phosphate) batteries
  • Custom/User-defined battery profiles

This ensures that the controller can work efficiently with almost any solar energy storage system.

High Current Capacity for Medium to Large Solar Arrays

Rated at 40A, the PowMr 40A MPPT controller can efficiently handle medium to large solar panel arrays, providing stable charging to sizable battery banks. It is ideal for:

  • Homes with moderate energy consumption
  • Small commercial or office setups
  • Farms and agricultural solar installations
  • Remote cabins or off-grid workshops

The controller efficiently manages high current flow while maintaining excellent thermal performance and system stability.

Comprehensive Protection Features

Safety is a key feature of the PowMr 40A MPPT controller. It comes with multiple built-in protection mechanisms:

  • Overcharge protection
  • Over-discharge protection
  • Overcurrent and overload protection
  • Short-circuit protection
  • Reverse polarity protection
  • Over-temperature protection

These protections ensure reliable and safe operation, protecting both the batteries and connected devices from damage.

User-Friendly LCD Display

The built-in LCD display provides real-time information on:

  • Battery voltage and current
  • Solar panel voltage and current
  • Charging status and mode
  • Alerts and error notifications

Users can easily configure settings, select battery type, and monitor system performance, making it suitable for both beginners and experienced solar installers.

Durable and Reliable Design

The PowMr 40A MPPT controller is designed for long-term reliability. Its robust housing and heat-dissipating design ensure that the controller operates efficiently even under high temperatures, making it suitable for installation in Bangladesh’s climate and similar regions. The intelligent thermal management system protects the electronics while maintaining optimal performance.

Ideal Applications

The PowMr 40A MPPT Solar Charge Controller is suitable for various applications:

  • Residential homes and apartments
  • Commercial buildings and offices
  • Agricultural farms and irrigation systems
  • Solar water pumps
  • RVs, off-grid cabins, and remote installations
  • Small workshops and factories

This versatility makes it a perfect choice for anyone seeking a reliable and efficient solar charge controller.

Conclusion

The PowMr 40A MPPT Solar Charge Controller is a robust, intelligent, and efficient solution for managing medium to large solar power systems. Its advanced MPPT technology, multi-stage battery charging, wide battery compatibility, and comprehensive safety features make it ideal for both residential and commercial solar applications.

Whether you are installing a new solar system or upgrading an existing one, the PowMr 40A ensures maximum energy harvest, safe battery operation, and reliable long-term performance—making it a must-have for modern solar setups.

At a glance

BrandPowMr
ModelPOW-Keeper1240
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Technical specifications

Model
POW-Keeper1240
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