Optimate 20W Solar Duo Pulse Charger, Tester & Maintainer

The OptiMate 20W Solar Duo Pulse Charger, Tester & Maintainer supports you by delivering solar-powered charging during the day and continuous battery monitoring when solar input is absent. It uses a 20W polycrystalline panel, a pulse-charging controller and an automatic multi-stage programme to manage charging, optimisation and long-term maintenance for both lead-acid and lithium LFP batteries.Discover the key features of this charger so you can understand how the technology supports your battery care:High-intensity 20W Polycrystalline Solar Panel: The weatherproof polycrystalline panel produces up to 20W at 12V/12.8V through an aluminium frame with four mounting brackets and a 200cm SAE-connected output cable, allowing you to use a stable and durable outdoor power source that feeds the charger-controller with consistent energy throughout the day.TM522-D2 Six-Step Smart Charger-Controller: This controller operates through test, save, charge, optimise, maintain and monitor stages with automatic voltage and current regulation, and its 5-LED display provides real-time information on solar input, charge stage and battery condition, giving you a structured charging process that keeps you informed at every stage.Dual Conversion Pulse-Charging Technology: The controller converts low or inconsistent solar input into a higher-voltage pulse charge, improving energy delivery efficiency when sunlight conditions shift, which helps you maintain useful charging performance during weaker daylight hours.DAY Charge / NIGHT Monitor Function: The system changes behaviour based on solar availability, delivering charging and maintenance when the panel receives sunlight and switching to battery monitoring when it does not, giving you uninterrupted oversight of battery condition without manual interaction.Low-Voltage Save Activation: With a 4V starting threshold, the controller applies controlled recovery pulses to assist in bringing a heavily discharged battery back towards a usable state, which supports you when dealing with batteries that have been left unused for extended periods.Battery Status LED Indicators: The SAVE, CHARGE, MAINTAIN and SOLAR CHARGE indicators show solar activity and battery state every three seconds, allowing you to check charge progress and battery health at a glance during both charging and monitoring periods.Wide Battery Compatibility: Designed for 12V STD, AGM, GEL and lithium LFP batteries from 5 80Ah, the system identifies battery type and condition automatically, ensuring that you apply the correct charge profile without additional configuration.Electronic Protection and Safety Functions: Spark suppression, automatic shut-down during short-circuit or disconnection events and overcharge protection work together to safeguard your vehicle electronics and battery, supporting long-term unattended use in outdoor environments.Weatherproof IP54 Design: The controller housing, cables and connectors are rated for outdoor operation in temperatures down to -20°C, offering durability in varied conditions and helping you maintain dependable battery care throughout the year.Comprehensive Connection Kit: The inclusion of an OptiMate O-1 weatherproof battery lead, an O-4 battery clamp set and the solar panel gives you a complete setup for temporary or permanent installation, allowing you to integrate the charger into your vehicle or equipment layout efficiently.This system helps you keep a reliable charge on your battery when your vehicle or equipment is stored outside or used intermittently, giving you steady performance without manual charging routines. The combination of multi-stage processing, pulse conversion and continuous monitoring provides a dependable method for maintaining everyday battery readiness, making it a smart addition to your vehicle setup when you want straightforward and low-intervention upkeep.