{"product_id":"12v-to-13-8v-10a-dc-dc-lead-acid-battery-charger-step-up-dc-dc-converter","title":"12V to 13.8V 10A DC-DC Lead-Acid Battery Charger | Step up DC DC Converter","description":"\u003ch2\u003eCharge Your Lead-Acid Battery Faster — Directly from Your 12V Power Source\u003c\/h2\u003e\n\u003cp\u003eWhether you're managing a dual-battery RV setup, charging a deep-cycle marine battery underway, or building a solar energy storage system, the \u003cstrong\u003eJason Bang 12V to 13.8V 10A Battery Charger\u003c\/strong\u003e delivers consistent, battery-safe charging current at the correct lead-acid voltage — no AC outlet, no bulky charger, no complexity.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e138W continuous output\u003c\/strong\u003e, this module charges batteries up to 500Ah meaningfully and can maintain anything from a small engine start battery to a large AGM house bank. Mount it permanently in your installation or use it as a portable charging solution — the rugged aluminum-alloy case handles road and marine vibration without complaint.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e13.8V Fixed Output:\u003c\/strong\u003e Matches absorption\/float voltage for all standard lead-acid chemistry — prevents overcharge damage and battery sulfation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10A \/ 138W Continuous:\u003c\/strong\u003e Suitable for charging or maintaining batteries from 50Ah to 500Ah capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8–12V Input:\u003c\/strong\u003e Works on 12V vehicle systems, 24V truck electrical, and solar charge controller outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Mountable:\u003c\/strong\u003e 74×74×32mm footprint with mounting flanges — installs anywhere in battery compartments, junction boxes, or under seats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Protection:\u003c\/strong\u003e Reverse polarity, short-circuit, overcurrent, and thermal shutdown keep both the module and your battery safe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Efficiency ≥93%:\u003c\/strong\u003e Very low heat generation — runs cool even in enclosed installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100.059%; height: 215.532px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 28.5651%; height: 19.5938px;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"width: 68.88%; height: 19.5938px;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.5651%; height: 19.5938px;\"\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd style=\"width: 68.88%; height: 19.5938px;\"\u003e8V – 12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.5651%; height: 19.5938px;\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd style=\"width: 68.88%; height: 19.5938px;\"\u003e13.8V DC (fixed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.5651%; height: 19.5938px;\"\u003eOutput Current\u003c\/td\u003e\n\u003ctd style=\"width: 68.88%; height: 19.5938px;\"\u003e10A continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.5651%; height: 19.5938px;\"\u003eOutput Power\u003c\/td\u003e\n\u003ctd style=\"width: 68.88%; height: 19.5938px;\"\u003e138W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.5651%; height: 19.5938px;\"\u003eConversion Efficiency\u003c\/td\u003e\n\u003ctd style=\"width: 68.88%; height: 19.5938px;\"\u003e≥93%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.5651%; height: 19.5938px;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"width: 68.88%; height: 19.5938px;\"\u003e-20°C to +65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.5651%; height: 19.5938px;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"width: 68.88%; height: 19.5938px;\"\u003e74 × 74 × 32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.5651%; height: 19.5938px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"width: 68.88%; height: 19.5938px;\"\u003e250g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.5651%; height: 19.5938px;\"\u003eProtections\u003c\/td\u003e\n\u003ctd style=\"width: 68.88%; height: 19.5938px;\"\u003eShort-circuit, Overcurrent, Reverse polarity, Over-temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.5651%; height: 19.5938px;\"\u003eCompatible Battery Types\u003c\/td\u003e\n\u003ctd style=\"width: 68.88%; height: 19.5938px;\"\u003eFlooded Lead-Acid, AGM, VRLA, Gel (NOT for LiFePO4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTypical Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e🚐 \u003cstrong\u003eRV house battery charging\u003c\/strong\u003e — maintain 12V AGM house bank while driving or from solar\u003c\/li\u003e\n\u003cli\u003e⛵ \u003cstrong\u003eBoat underway charging\u003c\/strong\u003e — charge service battery from engine alternator or small solar panel\u003c\/li\u003e\n\u003cli\u003e☀️ \u003cstrong\u003eOff-grid solar storage\u003c\/strong\u003e — regulated 13.8V charge input for lead-acid battery banks\u003c\/li\u003e\n\u003cli\u003e🔧 \u003cstrong\u003eWorkshop battery maintainer\u003c\/strong\u003e — keep fleet vehicle batteries topped up between uses\u003c\/li\u003e\n\u003cli\u003e🏕️ \u003cstrong\u003eOverlanding \u0026amp; camping\u003c\/strong\u003e — charge aux battery from starter battery or roof-mounted solar\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e For LiFePO4 (lithium iron phosphate) batteries, 14.6V is the correct charge voltage. Please see our 14.6V LiFePO4 Charger to avoid cell damage.\u003c\/em\u003e\u003c\/p\u003e","brand":"Jason Bang","offers":[{"title":"12V to 13.8V 10A 138W","offer_id":43583812075610,"sku":null,"price":69.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/9154\/7482\/files\/5L_3_63e4d160-1612-4b38-a7ac-c839e9afe4d2.jpg?v=1782304990","url":"https:\/\/jasonbangpower.com\/products\/12v-to-13-8v-10a-dc-dc-lead-acid-battery-charger-step-up-dc-dc-converter","provider":"Jason Bang","version":"1.0","type":"link"}