20 Amp MPPT Solar Charge Controller

Features

Efficient MPPT Solar Charging

• Up to 99% MPPT Tracking Efficiency: Maximizes solar energy harvest under changing sunlight conditions.
  
• Up to 98% Conversion Efficiency: Converts more solar power into usable battery charging energy.
  
• Supports up to 520W PV Input: Recommended for solar arrays up to 260W (12V) or 520W (24V).

Flexible System Compatibility

• 12V/24V Auto Detection: Automatically identifies the system voltage during installation.
  
• 100V Max Solar Input Voltage: Supports flexible solar panel configurations.
  
• Supports Multiple Battery Types: Compatible with Sealed, Gel, Flooded, and Lithium batteries.

User-Friendly Operation

• LCD Display with LED Indicators: Displays charging status, battery information, operating parameters, and fault codes.
  
• Bluetooth Ready: Supports the optional BT-1 Bluetooth module via the RS232 communication port for wireless monitoring.
  
• Die-Cast Aluminum Housing: Provides efficient heat dissipation for reliable operation.

Comprehensive Reliability

• Advanced Electronic Protection: Protects against reverse polarity, overcharging, overload, and short circuit.
  
• Lithium Battery Recovery: Capable of charging over-discharged lithium batteries.
  
• Designed for Long-Term Reliability: Durable construction for demanding off-grid applications.

Specifications

• Nominal System Voltage: 12V/24V Auto
  
• Rated Battery Current: 20A
  
• Rated Load Current: 20A
  
• Max. PV Input Short Current: 25A
  
• Max. Battery Voltage: 32V
  
• Max Solar Input Voltage: 100 VDC
  
• Discharge Circuit Voltage Drop: ≤0.15 V
  
• Max. Photovoltaic System Input Power: 260W/12V, 520W/24V
  
• Conversion Efficiency: ≤98%
  
• MPPT Tracking Efficiency: >99%
  
• Operating Temperature: -35℃ to +45℃
  
• Protection Degree: IP32
  
• Net Weight: 3.08 lb
  
• Overall Dimensions: 8.27 x 5.94 x 2.34 in