Optimate 20W Solar Duo Pulse Charger, Tester & Maintainer Car Kit

The OptiMate 20W Solar Duo Pulse Charger, Tester & Maintainer Car Kit helps you keep your 12V battery charged, maintained and monitored using solar power. You use its 20W polycrystalline panel, pulse-charging controller and automated multi-stage programme to manage both lead-acid and lithium LFP batteries throughout daily and overnight cycles.Discover the key features of this kit:20W Polycrystalline Solar Panel: The 20W polycrystalline module uses high-intensity solar cells mounted in a weatherproof aluminium frame with four integrated brackets and a 200cm SAE output cable, allowing you to capture consistent solar input in outdoor conditions and deliver a stable power supply to support regular battery maintenance.TM522-D2 Smart Charger-Controller: The TM522-D2 features a 2A output, six-step charging programme (Test, Save, Charge, Optimise, Maintain, Monitor) and a 5-LED display, using voltage interpretation and automated control logic to match the charge to battery type and condition so you receive clear feedback while the battery is managed safely and efficiently.Dual-Chemistry Compatibility: The controller supports standard flooded lead-acid, AGM, GEL and lithium LFP 12.8V / 13.2V batteries from 5 80Ah by using chemistry-specific regulation within each step, helping you maintain a reliable charge profile across different battery types in your vehicle setup.Pulse Charging Conversion Technology: The controller converts low solar energy into a higher 3 5A pulse current, using efficient dual-conversion circuitry to maximise the usable output during weak sunlight which improves recovery capability and supports day-long maintenance when weather conditions vary.Low-Volt Recovery Function: The Save stage activates from 4V, using controlled pulse delivery to assist batteries that have discharged to a low level, giving you a practical way to restore batteries that would otherwise remain unusable.Automatic Day/Night Switching: The unit follows a DAY charge-and-maintain cycle and a NIGHT monitoring cycle, using the absence of solar input to transition into timed status reporting every three seconds so you can track the battery condition without manually switching modes.Five-LED Status Display: The panel includes individual indicators for solar input, Save, Charge, Maintain and Monitor states, providing straightforward visibility of progress and allowing you to check charge behaviour at a glance.Full Electronic Protection: Built-in protections include spark suppression, short-circuit shut-down and safeguards for vehicle electronics, giving you a controlled charging environment suitable for unattended maintenance.Weatherproof Construction: The IP54-rated controller and outdoor-ready panel materials help you operate the kit indoors or outdoors down to 20°C, supporting everyday use in varied locations.OBD and Direct Battery Connection Options: The supplied OBD port cable and clamp lead give you two ways to connect the charger-controller, allowing quick access through the diagnostic port or a direct link to the battery depending on your working space.Suction-Cup Mounting Accessories: The included suction mounts allow you to secure the panel to a window, helping you position the kit in areas where exterior mounting is impractical.Nylon Storage and Transport Case: The travel case stores the panel, cables and controller in one place, giving you a tidy and portable way to move or organise the kit.You use this kit to support dependable battery performance when your vehicle sits unused for days or weeks, with the multi-stage controller managing charge behaviour throughout changing light conditions. The low-volt recovery, clear LED feedback and dual-chemistry regulation help you maintain batteries used in everyday cars, seasonal vehicles or equipment stored outdoors. As part of your car setup, it is a practical addition that offers a smart choice for keeping your battery in steady condition across the year.