MPPT Solar Charge Controller 40A 12V 24V PV up to 80V Overview A maximum power point tracking solar charge controller that optimizes PV energy harvesting and charges 12 volt and 24 volt battery systems with up to 40 amps of charging current. Designed to prevent reverse current from the battery to the panels and to protect the system with multiple built in safety functions. Key benefits Higher usable energy from PV panels: MPPT tracking extracts more power from solar modules under varying light and temperature conditions, increasing charging efficiency and reducing energy loss. Flexible system design: PV input capability up to 80 volts allows use of higher voltage panel strings to reduce wiring losses and accommodate a wider range of panel configurations. Reliable battery charging: Automatic 12 volt and 24 volt detection and lithium battery compatibility ensure correct charging profiles for common battery chemistries used in off grid and mobile systems. System protection and longevity: Anti reverse current protection and multiple safety functions reduce the risk of equipment damage and battery stress. Main features MPPT control for improved conversion efficiency and consistent charging performance. 40 amp maximum charging current at 12 volt or 24 volt battery systems with automatic voltage detection. PV open circuit voltage support up to 80 volts, enabling higher voltage array layouts. Anti reverse solar panel regulator to prevent discharge from battery to panels at night. Compatible with lithium battery systems and programmable charge settings for safe charging. Built in protections including overcharge protection, overdischarge protection, reverse polarity protection for battery and PV connections, overcurrent protection, short circuit protection, and over temperature protection. Compact form factor and durable enclosure suitable for indoor or sheltered installations. Performance and compatibility Supports 12 volt and 24 volt battery banks with automatic detection and appropriate charge algorithm selection. Designed for use with common lithium battery types when configured accordingly. Accepts PV inputs up to 80 volts to maximize array design options and reduce voltage drop in longer cable runs. Practical applications Off grid cabin or small home solar system: Charge a 12 volt or 24 volt battery bank to run lighting, refrigeration, and small appliances while maximizing solar yield. Recreational vehicles and boats: Provide efficient, regulated charging for leisure batteries with compact installation and anti reverse protection to prevent nighttime discharge. Remote equipment and telecom sites: Power controllers and monitoring equipment from solar arrays where reliable MPPT charging and multiple protections extend system uptime. Installation notes Ensure PV open circuit voltage does not exceed 80 volts. Verify battery type and set or confirm lithium compatible charging parameters before connecting. Install in a dry, ventilated location and follow recommended wire sizing and fuse protection for the 40 amp output. What this product solves Reduces wasted solar energy by tracking the maximum power point of the panels. Prevents battery drain to panels at night or on poor panels through anti reverse protection. Protects batteries and system components with comprehensive safety functions to minimize faults and downtime. Enables flexible array layouts and simpler wiring by supporting higher PV voltages up to 80 volts. Technical summary Type: MPPT solar charge controller Maximum charging current: 40 amps Battery system voltage: 12 volt and 24 volt automatic detection PV open circuit voltage: up to 80 volts Key functions: MPPT tracking, anti reverse panel protection, lithium battery compatibility, multiple protection modes This controller is intended for residential, mobile, and small commercial solar charging applications where efficient MPPT charging, lithium compatibility, and built in protective functions are required.