{"product_id":"battery-tender-2-bank-12v-1-25-amp-battery-charger-and-maintainer","title":"Battery Tender® 2-Bank 12V 1.25 Amp Battery Charger and Maintainer","description":"\u003cp\u003eTwo vehicles. One charger. The Battery Tender® 2-Bank 12V 1.25 Amp brings fully independent, simultaneous smart charging to two batteries at once — each bank running its own complete ISM (Infinite Sequential Monitoring™) cycle at full 1.25 Amp output, regardless of the other bank's state. Two vehicles stored. Two batteries maintained. One unit.\u003c\/p\u003e\u003ch3\u003eWhat \"Independent Banks\" Actually Means\u003c\/h3\u003e\u003cp\u003eThe 2-Bank is not a splitter. A single-output charger with a Y-adapter divides its amperage between connected batteries — two batteries get half the rated output each, and both banks move through charging stages together regardless of individual battery state. The Battery Tender® 2-Bank operates two entirely independent charging circuits: Bank 1 runs its own ISM algorithm at full 1.25 Amp; Bank 2 runs its own ISM algorithm at full 1.25 Amp. Each bank reads its own battery's state and responds accordingly. Bank 1 can be in bulk charge recovering a dead battery while Bank 2 is in float maintenance on a fully charged one — simultaneously, without interference.\u003c\/p\u003e\u003ch3\u003eISM on Every Bank, Every Battery\u003c\/h3\u003e\u003cp\u003eEach bank independently runs the full 4-stage ISM algorithm:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Individual battery health check before current flows on that bank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 1.25 Amp output to that battery restores depleted capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers for that battery individually as it approaches full charge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — That battery held at peak voltage 24\/7 independently of all other banks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eEvery battery connected to the 2-Bank receives the same intelligent charging it would receive from a dedicated single-unit Battery Tender® Plus — simultaneously.\u003c\/p\u003e\u003ch3\u003eCompatible Battery Types and Sizes\u003c\/h3\u003e\u003cp\u003eEach bank: 12V lead-acid batteries from 14Ah to 80Ah. All lead-acid chemistries: flooded, AGM, gel cell, and sealed maintenance-free.\u003c\/p\u003e\u003ch3\u003eMulti-Vehicle Storage and Fleet Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTwo motorcycles or powersports vehicles in seasonal storage\u003c\/li\u003e\n\u003cli\u003eA motorcycle and a car or truck stored together\u003c\/li\u003e\n\u003cli\u003eTwo ATVs or UTVs maintained in an equipment shed\u003c\/li\u003e\n\u003cli\u003eTwo boats or personal watercraft at marina or dock storage\u003c\/li\u003e\n\u003cli\u003eTwo lawnmowers or seasonal equipment units\u003c\/li\u003e\n\u003cli\u003eMixed vehicle pairs — any combination of 12V lead-acid applications per bank\u003c\/li\u003e\n\u003cli\u003eDealerships and service departments maintaining demo or loaner fleet batteries\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAutomatic Temperature Compensation\u003c\/h3\u003e\u003cp\u003eBoth banks automatically adjust charge voltage based on ambient temperature — each bank responding to the same environmental conditions and delivering the correct voltage to its battery. Correct charging in cold storage or summer heat, no manual adjustment required.\u003c\/p\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof connection on each bank\u003c\/strong\u003e — no current flows until polarity and connection are confirmed correct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection per bank\u003c\/strong\u003e — incorrect connection on one bank does not affect the other\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection per bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eETL and CETL certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eStop Replacing Two Batteries Every Spring\u003c\/h3\u003e\u003cp\u003eThe cost of seasonal battery replacement compounds across a multi-vehicle garage. Two dead batteries in spring means two replacement costs, two installation sessions, and two vehicles not ready when the season opens. The Battery Tender® 2-Bank eliminates both failures simultaneously. Sulfation — the permanent, irreversible hardening of lead sulfate on battery plates — is the primary cause of stored battery failure. ISM on both banks prevents it entirely through continuous float maintenance, extending battery life from 2–3 years to 5 years or more on both vehicles simultaneously.\u003c\/p\u003e\u003cp\u003eOne unit. Two vehicles protected. Year after year.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e2-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52241548673298,"sku":"022-0165-DL-WH","price":139.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1929\/4483\/files\/022-0165_newhousing_wClips.png?v=1777901448","url":"https:\/\/hdwerks.net\/products\/battery-tender-2-bank-12v-1-25-amp-battery-charger-and-maintainer","provider":"HDwerks ","version":"1.0","type":"link"}