Compact 8A PWM Solar Charge Controller

Overview

This compact PWM solar charge controller efficiently manages the charging of various lead-acid and LiFePO4 batteries. Featuring advanced MOSFET switching, multi-stage charging, and multiple safety protections, it comes in an IP65 enclosure for dependable outdoor use.

Benefits

• Promote longer battery life with smart multi-stage charging and temperature compensation that mitigate overcharging.
• Reduce troubleshooting time thanks to LED indicators that provide clear information on battery status and charging progress.
• Experience safer installation and operation with built-in protections against overvoltage, short circuits, reverse polarity, and thermal issues.
• Confidently install in various locations, as the waterproof IP65 design and corrosion-resistant terminals make it suitable for outdoor or damp settings.
• Quickly adapt to different battery types using the DIP switch for customized charging settings.

Features

• PWM charging control utilizing efficient MOSFET switching technology
• Common positive grounding design
• High efficiency with minimal standby current of 2 mA during nighttime
• DIP switch allows for battery type selection (Flooded/WET, AGM, GEL, LiFePO4)
• Smart multi-stage charging with management of charging time
• Soft-start capability to minimize inrush current at the beginning of the charging process
• LED indicators display battery condition and charging status
• Thermal protection and automatic shutdown if temperature exceeds set limits
• Comprehensive safeguards against overvoltage, short-circuits, and reverse polarity
• Connections are spark-free with corrosion-resistant terminals and connectors
• Internal PCB features conformal coating for moisture protection
• Waterproof, outdoor-rated housing with IP65 classification
• Meets CE, EMC, and FCC standards for safety and reliability
• Simple mounting process using provided plastic spacers and self-tapping screws for flat surfaces

Specifications

• Electrical Parameters
• Rated solar panel current: Maximum 8 AMP
• Normal input solar array voltage: 15 - 22 VDC
• Maximum open-circuit solar array voltage: 25 VDC
• Minimum operational voltage (solar/battery side): 9 VDC
• Nighttime standby current consumption: 2 mA
• Maximum voltage drop from solar panel to battery: 0.25 VDC
• Charging Characteristics
• Minimum battery charging starting voltage: 3 VDC
• Soft-start charging voltage: 3 - 10 ±0.2 VDC
• Soft-start charging current (50% PWM duty): Up to 4 AMP
• Bulk charge voltage: 10 - 14 ±0.2 VDC
• Equalization charging voltage at 25 °C: 15.5 ±0.2 VDC
• Equalization charging timer timeout: 2 hours
• Battery temperature compensation coefficient: -24 mV/°C
• Temperature compensation range: -4 °F to +122 °F
• Protection Features
• Over-temperature protection threshold during charging: 149 °F
• Built-in overvoltage, short-circuit, and reverse-polarity protection
• Electrical Components
• Input/output terminals: M4 terminals
• Physical Parameters
• Material: Standard ABS plastic
• Maximum stranded wire size for power terminals: #12 AWG stranded / 3 mm²
• Mounting type: Vertical wall mounting with supplied spacers and screws
• Ingress protection rating: IP65
• Weight: Approximately 0.2 kg / 0.44 lb
• Environmental Characteristics
• Operating temperature range: -25 °C to 50 °C (-13 °F to 122 °F)
• Storage temperature range: -40 °C to 85 °C (-40 °F to 185 °F)
• Operating humidity: 100% (no condensation)