Rich Solar Bravo 20A Waterproof PWM Solar Charge Controller For Off Grid Power

20A PWM Solar Charge Controller — Waterproof, Multi?Battery Smart Charger

This compact PWM solar charge controller uses MOSFET switching and smart charge management to keep your batteries healthy and safe. It supports multiple lead?acid and LiFePO4 battery types, provides rugged waterproof protection, and includes protections and indicators that make installation and daily use straightforward.

Benefits

• Protects and extends battery life by managing charging stages and temperature compensation.
• Reduces maintenance and downtime with automatic charging control and LED status feedback.
• Makes installation simple and safe thanks to common positive grounding, durable terminals, and spark?free operation.
• Works reliably outdoors and in damp environments with IP65 waterproofing and conformal PCB coating.
• Saves power overnight with low standby current, preserving battery capacity for when you need it.

Features

• PWM charging using MOSFET switching for efficient control.
• Common positive grounding connection.
• Battery type selectable via DIP switch (Flooded/WET, AGM, GEL, LiFePO4).
• Smart multi?stage charging control with charging time management and equalization option.
• LED indicators for battery condition and charging status.
• Thermal protection and over?temperature shutdown during charging.
• Overvoltage, short circuit and reverse polarity protection.
• No?spark design and corrosion?resistant terminals and connectors.
• Conformal coating on the internal board for moisture resistance.
• Optional port for an external battery temperature sensor (BTS).
• Rugged, waterproof IP65 enclosure with solid?duty cables.
• Designed to CE/EMC and FCC standards.

Specifications

• Electrical Parameters:
  • Rated solar panel current: Max. 20 A
  • Normal input solar array voltage: 15–22 VDC
  • Maximum solar array open?circuit voltage: 25 VDC
  • Lowest operating voltage (solar or battery side): 8 VDC
  • Standby current consumption at night: 5 mA
  • Maximum voltage drop (solar panel to battery): 0.25 VDC
• Charging Characteristics:
  • Minimum battery start charging voltage: 3 VDC
  • Soft start charging voltage: 3–10 ±0.2 VDC
  • Soft start charging current (50% PWM duty): Up to 10 A
  • 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 (-20 °C to +50 °C)
• Protection:
  • Overvoltage protection
  • Short circuit protection
  • Reverse polarity protection
  • Over?temperature protection during charging: 149 °F (?65 °C)
• Electrical Parts:
  • Input/output terminals: M5 terminals
• Physical Parameters:
  • Controller material: Standard ABS plastic
  • Power terminal maximum stranded wire size: #10 AWG stranded (?5 mm²)
  • Mounting: Vertical wall mounting; includes three plastic spacers and self?tapping screws for quick installation
  • Ingress protection: IP65 (waterproof)
  • Net weight: Approx. 0.3 kg (0.66 lb)
• Environmental Characteristics:
  • Operating temperature: -25 to 50 °C (-13 to 122 °F)
  • Storage temperature: -40 to 85 °C (-40 to 185 °F)
  • Operating humidity: 100% (no condensation)
• Compatibility & Standards:
  • Suitable for rechargeable lead?acid batteries (Flooded/WET, AGM, GEL) and Lithium (LiFePO4)
  • Optional external battery temperature sensor (BTS) port
  • Designed to meet CE, EMC and FCC compliance requirements