Compact MPPT Solar Charge Controller — 40A
Overview
A compact, high-efficiency MPPT solar charge controller that automatically detects 12V or 24V systems and supports multiple battery chemistries. It combines advanced tracking efficiency, robust electronic protections, an easy-to-read LCD, and a die-cast aluminum body for reliable, long-term performance.
Benefits
- Simplifies setup by automatically recognizing 12V or 24V systems so you can install faster.
- Works with sealed, gel, flooded, and lithium batteries, reducing the need to buy different controllers for different battery types.
- Maximizes solar power harvest with MPPT tracking, so you get more usable energy from the same panels.
- Protects your system and batteries from wiring mistakes, overcharge, deep discharge, overloads, and shorts—reducing downtime and repair costs.
- Lets you monitor status and troubleshoot quickly with an LCD and LED indicators showing operation info and error codes.
- Durable die-cast aluminum housing helps keep the controller cool and reliable under load.
- Optional Bluetooth connectivity via BT-1 (RS232) enables remote monitoring and parameter adjustments.
Features
- Automatic detection of 12V or 24V DC system voltage.
- Compatible with Sealed, Gel, Flooded, and Lithium deep-cycle batteries.
- MPPT technology with tracking efficiency up to 99% and peak conversion efficiency of 98%.
- Electronic protections: reverse polarity, overcharge, over-discharge, overload, short-circuit, and reverse current protection.
- LCD screen plus multiple LED indicators for system status, configurable parameters, and error codes.
- Flexible load control options and ability to charge over-discharged lithium batteries.
- Die-cast aluminum construction for effective heat dissipation.
- RS232 port to communicate with the BT-1 Bluetooth module for wireless monitoring.
Specifications
- Rated Battery Current: 40 A
- Rated Load Current (continuous): 20 A
- Max. PV Input Short-Circuit Current: 50 A
- Max. Battery Voltage: 32 V
- Max. Solar Input Voltage: 100 V DC
- Charge Circuit Voltage Drop: - 0.26 V
- Discharge Circuit Voltage Drop: - 0.15 V
- Working Temperature: -31 °F to +113 °F
- Max Terminal Size: 8 AWG
- Rated Load Control Range: 10% to 90% NC
- Overall Dimensions: 9.37 × 6.81 × 2.85 in
- Net Weight: 4.41 lb
