{"product_id":"thunder-20a-dc-to-dc-battery-charger-with-solar-input-tdr02021","title":"Thunder 20A DC to DC Battery Charger with Solar Input (TDR02021)","description":"\u003cp\u003eUpgrade your dual-battery setup with the \u003cb\u003eThunder 20A DC to DC Battery Charger with Solar Input (TDR02021)\u003c\/b\u003e. Engineered specifically for 4WDs, caravans, campers, and boat setups, this intelligent 20-amp charger ensures your auxiliary battery stays fully charged whether you are driving down the highway or set up off-grid on solar power.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Highlights\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDual Input with Integrated MPPT Solar Regulator:\u003c\/b\u003e Intelligently manages power from both your vehicle's alternator and external solar panels, maximizing charging efficiency while parked off-grid.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSmart 8-Stage Automatic Charging:\u003c\/b\u003e Microprocessor-controlled multi-stage charging profile automatically optimizes battery life, prevents overcharging, and ensures a deep, complete charge.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMulti-Chemistry Battery Compatibility:\u003c\/b\u003e Compatible with a wide range of battery types including Gel, AGM, Wet\/Lead-Acid, Calcium, and Lithium (LiFePO4) batteries.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHeavy-Duty \u0026amp; Weather-Resistant Construction:\u003c\/b\u003e Housed in a compact, durable alloy casing with IP67 water and dust resistance, making it suitable for under-bonnet installation, canopy walls, or caravan toolboxes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBuilt-In Safety Protections:\u003c\/b\u003e Offers comprehensive protection against over-voltage, under-voltage, over-temperature, reverse polarity, and short circuits to keep your vehicle power system safe.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eBrand\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eThunder\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eModel \/ Part Number\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTDR02021\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eOutput Current\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20 Amps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eInput Voltage Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12.8V – 16.0V DC (Vehicle) \/ 16.0V – 25.0V DC (Solar)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eBattery Compatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAGM, Gel, Lead-Acid, Calcium, Lithium (LiFePO4)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eIP Rating\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP67 Water \u0026amp; Dust Proof\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eSolar Controller\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIntegrated MPPT Regulator\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"autoelecdiscountparts","offers":[{"title":"Default Title","offer_id":51870130995495,"sku":"TDR02021","price":240.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/6750\/8519\/files\/IMG_20260813_160431.jpg?v=1786610576","url":"https:\/\/www.autoelecdiscountparts.com\/products\/thunder-20a-dc-to-dc-battery-charger-with-solar-input-tdr02021","provider":"autoelecdiscountparts","version":"1.0","type":"link"}