Solar MPPT Charge Controller — reliable power management and protection for 12V/24V/48V battery systems Key benefits — why you need this controller Maximizes solar harvest with a 100% MPPT (Intelligent Maximum Power Point Tracking) regulator so panels operate at peak power and batteries charge faster and more efficiently. Protects batteries and system components with comprehensive safety features (overcharge, low-voltage, temperature and PV protections), reducing failure risk and maintenance. Simple installation and remote monitoring: easy wall mounting, multifunctional LCD for local status, and remote configuration/real-time tracking via iOS and Android. What it does (core functions and protections) MPPT tracking: Intelligent Maximum Power Point Tracking technology with a high-performance built-in controller. Automatic battery voltage detection: supports 12V, 24V and 48V systems. Three-stage charging: optimizes battery life and performance. Temperature protection: trip at 75°C / 167°F. Fan control: fan turns on above 45°C / 113°F and turns off below 40°C / 104°F. PV reverse polarity protection: provided only when Voc is below 100V. PV Voc caution: if PV open-circuit voltage (Voc) exceeds 180V the controller will burn through. Battery protections: over charging power protection; battery overcharge voltage protection; battery low voltage protection. Output current limit protection and over temperature protection. Multifunctional LCD display for status and settings. Remote setup and monitoring: configure system parameters and track real-time data online via compatible iOS and Android apps. Compatibility and supported battery types Works with lead-acid battery types including ventilated (flooded) and gel batteries. Automatic detection for 12V / 24V / 48V battery banks. Physical, cooling and installation details Housing and cooling: forced air cooling with industrial-grade components. Acoustic noise under 40 dB. Size: 21.5 x 11.5 x 5 cm. Net weight: 1.3 kg. Easy wall mounting; no additional device required to connect in parallel. No limit on the number of devices connected in parallel. Protection category: IP21 (indoor use). Operating temperature: -20°C to +55°C. Storage temperature: -40°C to +75°C. Meets standards: EN 62109-1, EN 60730-1, EN IEC 61000-6-3, EN IEC 61000-6-1. Performance and reliability Industrial-grade components and built-in protections increase system uptime and reduce the risk of damage from environmental or electrical faults. Quiet operation (less than 40 dB) suitable for residential or enclosed installations. Typical applications / use scenarios Off-grid cabin or remote home: charge 12V/24V/48V battery banks from PV arrays while protecting batteries from overcharge, low voltage and temperature extremes. RVs and boats: maximize solar input and manage charging of onboard lead-acid batteries with compact, quiet cooling and easy wall mounting. Backup lighting and small telecom or remote monitoring systems: robust protections and remote monitoring allow reliable unattended operation. What’s included / what to plan for Controller (21.5 x 11.5 x 5 cm, 1.3 kg), multifunctional LCD, forced-air cooling system. Plan PV array Voc carefully: ensure Voc stays below 180V and be aware that PV reverse polarity protection is effective only when Voc is below 100V. Intended for indoor installations (IP21); keep within specified operating and storage temperatures. This controller provides MPPT efficiency, multi-level battery protection, compact industrial design, and remote monitoring compatibility to make solar charging reliable, safe and easy to manage.