{"product_id":"powertender-5-amp-12v-6v-battery-charger-and-maintainer","title":"PowerTender® 5 Amp 12V\/6V Battery Charger and Maintainer","description":"\u003cp\u003eFive amps of intelligent charging at either 6V or 12V, for both lead-acid and Lithium batteries — the PowerTender® 5 Amp 12V\/6V is the highest-output dual-voltage Multi-Chemistry charger in the Battery Tender® standard lineup, delivering ISM (Infinite Sequential Monitoring™) precision to large automotive, marine, and commercial vehicle batteries that need real charging speed alongside long-term maintenance capability.\u003c\/p\u003e\u003ch3\u003e5 Amp Output — Built for Large Battery Recovery\u003c\/h3\u003e\u003cp\u003eAt 5 Amp, the PowerTender® charges large automotive and marine batteries four times faster than a standard 1.25 Amp charger during the bulk phase. For deep-cycle batteries, large AGM automotive batteries, and marine house batteries in the 60Ah to 150Ah range, 5 Amp bulk charging is the threshold where recovery time becomes practical for working vehicles. Full 5 Amp output is delivered at either voltage setting with no reduction when switched.\u003c\/p\u003e\u003ch3\u003eMulti-Chemistry: Lead-Acid and Lithium\u003c\/h3\u003e\u003cp\u003eA manual chemistry selector switches between lead-acid and Lithium (LiFePO4) charging profiles. Lithium batteries require distinct absorption voltages and a different maintenance protocol than lead-acid — the PowerTender® 5 Amp delivers the correct ISM profile for each chemistry at full 5 Amp output and either voltage. For garages transitioning from lead-acid to Lithium, or running both simultaneously, a single unit handles all configurations correctly.\u003c\/p\u003e\u003ch3\u003eISM: 4-Stage Charging at 5 Amp\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Battery health check and polarity confirmation before current flows at the selected voltage and chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 5 Amp output restores depleted capacity at the correct voltage for the selected chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers automatically as the battery approaches full charge, preventing overcharge damage for lead-acid and Lithium alike\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Correct maintenance protocol for the selected chemistry delivered 24\/7, indefinitely, without overcharging\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCompatible battery size range: 20Ah to 150Ah at 6V or 12V. Lead-acid: flooded, AGM, gel cell, and sealed maintenance-free. Lithium: LiFePO4.\u003c\/p\u003e\u003ch3\u003e6V Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAntique and vintage automobiles with large 6V batteries\u003c\/li\u003e\n\u003cli\u003eAntique farm and commercial equipment\u003c\/li\u003e\n\u003cli\u003eVintage trucks and machinery with 6V systems\u003c\/li\u003e\n\u003cli\u003eAny large 6V lead-acid or Lithium battery from 20Ah to 150Ah\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e12V Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFull-size trucks, SUVs, and commercial vehicles\u003c\/li\u003e\n\u003cli\u003eBoats with large 12V house or starting batteries\u003c\/li\u003e\n\u003cli\u003eRVs and campers with deep-cycle battery banks\u003c\/li\u003e\n\u003cli\u003eATVs, UTVs, and powersports with larger battery configurations\u003c\/li\u003e\n\u003cli\u003eAgricultural equipment\u003c\/li\u003e\n\u003cli\u003eAny 12V lead-acid or Lithium battery from 20Ah to 150Ah\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAutomatic Temperature Compensation\u003c\/h3\u003e\u003cp\u003eCharge voltage adjusts automatically based on ambient temperature at both 6V and 12V settings — increasing in cold conditions to ensure complete charging, reducing in heat to prevent overcharging and gassing. Correct voltage delivered year-round without manual adjustment.\u003c\/p\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof connection\u003c\/strong\u003e — No current flows until polarity and connection are confirmed correct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection\u003c\/strong\u003e — Automatic shutdown if connections are reversed, protecting Lithium BMS systems and vehicle electronics\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection\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\u003eFloat Maintenance After Every Charge\u003c\/h3\u003e\u003cp\u003eAfter completing bulk and absorption charging, ISM transitions to the correct float maintenance protocol for the selected chemistry automatically — indefinitely. Batteries can remain connected for the full storage season without supervision. Sulfation in lead-acid batteries is prevented entirely. Battery life consistently extends from 2–3 years to 5 years or more regardless of battery size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e3-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52241549525266,"sku":"022-0186G-DL-WH","price":124.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1929\/4483\/files\/battery-tender-default-title-5-amp-power-tender-12v-battery-charger-022-0186g-dl-wh-59391672320369.png?v=1777901457","url":"https:\/\/hdwerks.net\/products\/powertender-5-amp-12v-6v-battery-charger-and-maintainer","provider":"HDwerks ","version":"1.0","type":"link"}