{"product_id":"keyline-chargers-dual-battery-isolator-kit-12v-140a-vsr","title":"KeyLine Chargers Dual Battery Isolator Kit 12V – 140A VSR","description":"\u003ch2\u003eEfficient, compact dual battery power with KeyLine Chargers\u003c\/h2\u003e\n\u003cp\u003eMeet the KeyLine Chargers Dual Battery Isolator Kit, a compact 12V solution designed to balance power between two batteries with precision. This smart unit connects your primary and auxiliary sources in a seamless, low-resistance path so you won’t experience startup hiccups or noticeable dimming when accessories run. Its small 2.6” x 2.6” x 2” footprint makes it easy to fit under the hood or as part of a battery relocation setup, giving you flexible installation options without compromising space or aesthetics.\u003c\/p\u003e\n\u003ch3\u003eSmart Voltage Sensitive Relay (VSR) for reliable charging\u003c\/h3\u003e\n\u003cp\u003eAt the core is a 12V VSR that automatically engages at 13.3V and disengages at 12.8V. In practical terms, your starting battery stays ready for cranking while the auxiliary battery receives charge when conditions permit. This behavior suits a range of setups—from marine and boat applications to work trucks and off-grid systems—offering a hands-off approach that can help reduce unexpected drainage and maintain ready power when you need it.\u003c\/p\u003e\n\u003ch3\u003eRugged, weather-ready design\u003c\/h3\u003e\n\u003cp\u003eBuilt to endure demanding environments, the kit is IP65-rated for water, dust, and vibration. The solid-state design emphasizes reliability across automotive, RV, UTV, and marine contexts. Whether you’re navigating rough trails, casting off at dawn, or heading to the job site, you can rely on steady power delivery when required.\u003c\/p\u003e\n\u003ch3\u003eAll-in-one kit for straightforward DIY installation\u003c\/h3\u003e\n\u003cp\u003eThe package includes a complete set of components for a hassle-free install: a 140 Amp VSR, 20 ft red power cable, 2 ft black ground cable, two positive marine-type brass terminals, one negative brass terminal, tinned copper lugs, heat shrink tubing, cable ties, and clear step-by-step instructions. Connect the power in, power out, and you’re ready to go—designed for DIYers of all skill levels seeking a clean, professional setup.\u003c\/p\u003e\n\u003ch3\u003ePeace of mind with warranty and guarantee\u003c\/h3\u003e\n\u003cp\u003eKeyLine Chargers backs this kit with a 12-month warranty and a 30-day money-back guarantee. The combination of smart charging, compact design, and rugged construction offers a flexible option for keeping two batteries coordinated and ready when you need them.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic VSR control reduces the risk of battery drain.\u003c\/li\u003e\n\u003cli\u003eCompact size fits tight engine bays and relocation kits.\u003c\/li\u003e\n\u003cli\u003eIP65-rated for water, dust, and vibration resistance.\u003c\/li\u003e\n\u003cli\u003eIncludes a complete wiring kit for straightforward DIY installation.\u003c\/li\u003e\n\u003cli\u003eSuitable for marine, truck, RV, and off-grid applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKit contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e140 Amp VSR relay\u003c\/li\u003e\n\u003cli\u003e20 ft red power cable\u003c\/li\u003e\n\u003cli\u003e2 ft black ground cable\u003c\/li\u003e\n\u003cli\u003e2 x positive marine-type brass battery terminals\u003c\/li\u003e\n\u003cli\u003e1 x negative brass terminal\u003c\/li\u003e\n\u003cli\u003eTinned copper lugs\u003c\/li\u003e\n\u003cli\u003eHeat shrink tubing\u003c\/li\u003e\n\u003cli\u003eCable ties\u003c\/li\u003e\n\u003cli\u003eStep-by-step instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\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 does the KeyLine Dual Battery Isolator Kit do?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It automatically balances charging between two batteries using a 140A VSR, helping prevent drain on the starting battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is installation difficult for DIY enthusiasts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The kit includes all hardware and step-by-step instructions for straightforward, under-hood wiring and test checks.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KeyLine Chargers","offers":[{"title":"Default Title","offer_id":42464392446037,"sku":"B00WTAFR5W","price":153.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/keyline-chargers-dual-battery-isolator-kit-12v-compact.jpg?v=1777978444","url":"https:\/\/plentytorque.co.uk\/products\/keyline-chargers-dual-battery-isolator-kit-12v-140a-vsr","provider":"PlentyTorque","version":"1.0","type":"link"}