{"product_id":"optima-d400-12v-battery-maintainer-charger-digital-safe-versatile","title":"OPTIMA D400+ 12V Battery Maintainer \u0026 Charger — Digital, Safe, Versatile","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eMeet the OPTIMA D400+ 12V Performance Battery Maintainer and Charger, a compact yet capable companion designed to keep a wide range of batteries ready for action. Whether you’re working with OPTIMA AGM, Lithium, traditional 12V auto\/marine, powersport lead-acid, or flooded packs, this device adapts to your needs with ease and care. Its thoughtful design combines safety, clarity, and efficiency to help you manage charging without guesswork.\u003c\/p\u003e\n\u003ch3\u003eSmart charging for multiple battery chemistries\u003c\/h3\u003e\n\u003cp\u003eThe D400+ features a digital battery type selector that lets you switch between battery types with a simple touch. This versatility supports OPTIMA AGM, OPTIMA Li, auto\/marine, and power-sport lead-acid batteries, making one charger suitable for many vehicles and projects.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDigital selector adapts to AGM, Lithium, Auto\/Marine, and Power Sport Lead Acid packs\u003c\/li\u003e\n  \u003cli\u003eIdeal for cars, boats, powersport machines, and seasonal storage cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eClear diagnostics at a glance\u003c\/h3\u003e\n\u003cp\u003eA four-color LED status bar provides at-a-glance feedback on the charger’s stage, while an illuminated LCD screen delivers precise values. Expect visible indicators for analysis, charging progress, conditioning, and automatic maintain modes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLED status bar signals Analyze, Charging, Conditioning, and Auto Maintain\u003c\/li\u003e\n  \u003cli\u003eLCD readouts show state of charge, voltage, and charging current\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafe, smarter storage and maintenance\u003c\/h3\u003e\n\u003cp\u003ePre-charge awareness helps you gauge battery voltage before charging, reducing risk. An integrated energy saver mode supports short-term and long-term storage, while spark-free connections, reverse polarity protection, and over-temperature safeguards prioritize user safety and battery health.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-Charge Status Gauge helps prevent unsafe charging conditions\u003c\/li\u003e\n  \u003cli\u003eEnergy Saver Auto Maintain mode protects batteries during storage\u003c\/li\u003e\n  \u003cli\u003eSpark-free connections plus reverse polarity and over-temp protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAll-in-one package for quick setup\u003c\/h3\u003e\n\u003cp\u003eWith a robust 4-amp peak charging current and a complete kit, you’ll have everything you need to charge and maintain a range of batteries right out of the box. The package includes clamps, a ring terminal, and OPTIMA POWERLINK connections for straightforward setup.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e4 A peak charging current for fast, safe top-ups\u003c\/li\u003e\n  \u003cli\u003eIncludes clamps, ring terminal, and POWERLINK cables\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReal-world use, real convenience\u003c\/h3\u003e\n\u003cp\u003eWhether you’re prepping a seasonal boat, keeping a daily driver ready, or maintaining a powersport machine between rides, the D400+ aims to simplify battery care with clear information and dependable performance. It’s designed to be your reliable power companion without promising guarantees, simply offering a practical path to better battery readiness.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What battery types does the OPTIMA D400+ support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The D400+ works with OPTIMA AGM, OPTIMA Li, 12V auto\/marine, powersport lead-acid, and flooded batteries.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What safety features and indicators does the D400+ offer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It includes reverse polarity protection, over-temperature protection, spark-free connections, a pre-charge gauge, and a four-color LED status bar for charging progress.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"OPTIMA","offers":[{"title":"Default Title","offer_id":42395629092949,"sku":"B0D285RZ5C","price":170.05,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/optima-d400plus-digital-display.jpg?v=1775944080","url":"https:\/\/plentytorque.co.uk\/products\/optima-d400-12v-battery-maintainer-charger-digital-safe-versatile","provider":"PlentyTorque","version":"1.0","type":"link"}