Efficient Compact PWM Solar Battery Charge Controller

Overview

This compact PWM solar charge controller is designed to effectively manage solar charging for 12V battery systems. It features advanced MOSFET switching technology, ensuring reliable performance with a focus on safety and easy maintenance, even in challenging environments. Compatible with a variety of lead-acid and LiFePO4 batteries, it keeps your energy storage systems running smoothly.

Benefits

• Extend battery life by utilizing smart charging profiles that minimize overcharging and sulfation.
• Reduce energy consumption and eliminate waste with low standby current and high-efficiency switching.
• Experience hassle-free installation with common positive grounding and durable terminals.
• Quickly gauge system performance with LED indicators displaying battery health and charging status.
• Enhance protection against equipment damage and downtime with built-in safeguards against thermal and electrical issues.

Features

• PWM technology with precise MOSFET control for optimal charging.
• Common positive grounding to simplify wiring configurations.
• Selectable battery profiles through a DIP switch for various lead-acid and LiFePO4 batteries.
• Smart charging management includes charging time control and soft-start functionality.
• LED indicators provide real-time updates on battery status and charging progress.
• Thermal protection and an automatic cutoff feature during overheating scenarios.
• Comprehensive protective measures against overvoltage, short circuits, and reverse polarity.
• Conformal coating on the internal board for enhanced moisture resistance.
• IP65 rated waterproof enclosure and corrosion-resistant connectors for outdoor durability.
• Sturdy cables and terminals that endure frequent connections without sparking.
• Optional external battery temperature sensor (BTS) port for temperature-adjusted charging.
• Designed to comply with CE, EMC, and FCC standards for safety and quality assurance.

Specifications

• Rated solar panel current: Max 10 A
• Normal input voltage range: 15 to 22 V DC
• Maximum open-circuit voltage: 25 V DC
• Minimum operating voltage: 8 V DC
• Standby current at night: 5 mA
• Maximum voltage drop from solar panel to battery: 0.25 V DC
• Minimum battery start charging voltage: 3 V DC
• Soft-start charging voltage range: 3 to 10 ±0.2 V DC
• Soft-start charging current (50% PWM duty): Up to 5 A
• Equalization charging voltage (at 25 °C): 15.5 ±0.2 V DC
• Equalization charging timer: 2 hours maximum
• Battery temperature compensation coefficient: -24 mV/°C
• Temperature compensation range: -20 to +50 °C (-4 to 122 °F)
• Over-temperature protection during charging: 65 °C (149 °F)
• Protections against overvoltage, short circuits, reverse polarity, and thermal cutoff
• Input-output terminal type: M5 terminals
• Maximum wire size for power terminal: #10 AWG stranded / 5 mm²
• Controller material: Standard ABS plastic
• Mounting: Vertical wall mounting with easy installation using supplied spacers and self-tapping screws
• Ingress protection level: IP65 (waterproof)
• Net weight: Approximately 0.3 kg (0.66 lb)
• Operating temperature: -25 to 50 °C (-13 to 122 °F)
• Storage temperature range: -40 to 85 °C (-40 to 185 °F)
• Operating humidity: 100% (without condensation)
• Compatible battery types: Flooded (WET), AGM, GEL, and Lithium (LiFePO4)