{"product_id":"battery-tender-800-ma-supersmart-12v-battery-charger-sealed-marine-ready-automatic-multi-stage-maintenance","title":"Battery Tender 800 mA SuperSmart 12V Battery Charger — Sealed Marine-Ready, Automatic Multi‑Stage Maintenance","description":"\u003cp\u003e\u003cstrong\u003eThe Battery Tender 800 is a compact SuperSmart 800 mA charger that automatically charges, monitors, and maintains 12V batteries while being fully sealed against moisture.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis small, lightweight charger delivers steady 800 milliamp charging with intelligent multi-stage control to keep batteries healthy long-term. Built for outdoor and marine conditions, the unit’s electronics are fully encapsulated in a thermally conductive, flame-retardant resin to resist shock, vibration and water exposure. Its universal 100–240 VAC input makes it usable around the world, and multiple protections guard against reverse polarity, sparks and short circuits.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Battery Tender 800 protect batteries without needing user intervention?\u003c\/h3\u003e\n\n\u003cp\u003eThe charger uses an onboard control IC to sense battery condition and automatically switch through charge stages—bulk, absorption and float—so the battery isn’t overcharged. After the battery reaches full capacity, it stays on a maintenance float to replace self-discharge and preserve charge.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAutomatic multi-stage charging adapts to battery state\u003c\/li\u003e\n  \u003cli\u003eMaintenance float prevents overcharge and sulfate build-up\u003c\/li\u003e\n  \u003cli\u003eBuilt-in reverse polarity and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the Battery Tender 800 suitable for wet or marine environments?\u003c\/h3\u003e\n\n\u003cp\u003eYes. The internal electronics are fully encapsulated in an electrically insulating and thermally conductive epoxy that protects against moisture, vibration and impacts. The design allows the charger to function reliably in damp or splash-prone conditions where ordinary chargers would fail.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eEncapsulated circuitry resists shock, vibration and moisture\u003c\/li\u003e\n  \u003cli\u003eFlame-retardant, UL-recognized resin enhances safety\u003c\/li\u003e\n  \u003cli\u003eEngineered to withstand outdoor and marine use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicles and batteries work best with this 800 mA charger?\u003c\/h3\u003e\n\n\u003cp\u003eThe Battery Tender 800 is sized for small to medium 12V lead-acid batteries found in motorcycles, ATVs, personal watercraft, boats, and similar engines. Its steady 800 mA output is ideal for maintaining charge on seasonal or infrequently used vehicles without overheating smaller batteries.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRecommended for 12V lead-acid and AGM batteries on motorcycles and ATVs\u003c\/li\u003e\n  \u003cli\u003eGood for marine trolling motors and small boat batteries needing maintenance charging\u003c\/li\u003e\n  \u003cli\u003eCompact size fits tight storage spaces on vehicles and docks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to install and use the Battery Tender 800?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is straightforward: connect the clips or ring terminals to the battery, plug the charger into an AC outlet, and the unit automatically handles charging and maintenance. Its compact footprint and lightweight housing make it mountable in many locations and convenient to carry.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSimple clip or ring-terminal connections for fast setup\u003c\/li\u003e\n  \u003cli\u003eUniversal 100–240VAC input works worldwide without a transformer\u003c\/li\u003e\n  \u003cli\u003eSmall size—about the size of a computer mouse—mountable for permanent or temporary use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The Battery Tender 800 is for riders, boaters, and outdoors enthusiasts who need a reliable, low-maintenance charger to preserve battery life in wet or vibration-prone environments. It suits anyone who stores seasonal vehicles, travels internationally, or wants a durable, automated maintenance charger that can be left connected without worry.\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: Can I leave the Battery Tender 800 connected indefinitely?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Its automatic maintenance float mode is designed for long-term connection without overcharging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this charger work worldwide with different voltages?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The unit accepts 100–240 VAC, 50\/60 Hz, so it works internationally without a separate converter.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Battery Tender","offers":[{"title":"Default Title","offer_id":48079804367006,"sku":"B000CITKCE","price":84.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/battery-tender-800-front-view.jpg?v=1785771143","url":"https:\/\/northtrailauto.ca\/products\/battery-tender-800-ma-supersmart-12v-battery-charger-sealed-marine-ready-automatic-multi-stage-maintenance","provider":"North Trail Auto","version":"1.0","type":"link"}