{"product_id":"battery-tender-12v-8-amp-2-amp-selectable-battery-charger-and-maintainer","title":"PowerTender® 8 Amp\/2 Amp 12V Battery Charger and Maintainer","description":"\u003cp\u003eSome batteries need to charge fast. All batteries need to be maintained. The PowerTender® 8 Amp\/2 Amp IP65 delivers both in one unit — 8 Amp high-output charging for rapid battery recovery, 2 Amp maintenance mode for long-term storage, IP65 weather resistance for permanent installation in any environment, and full Multi-Chemistry support for both lead-acid and Lithium batteries. The most capable mid-range charger in the Battery Tender® lineup.\u003c\/p\u003e\u003ch3\u003eDual Output: 8 Amp Charging, 2 Amp Maintenance\u003c\/h3\u003e\u003cp\u003eThe PowerTender® 8 Amp\/2 Amp uses a dual-output architecture: 8 Amp for high-speed bulk charging of depleted batteries, and 2 Amp for ongoing maintenance of fully charged batteries. At 8 Amp, a depleted 60Ah automotive battery recovers in approximately 7–8 hours. Once charging is complete, ISM (Infinite Sequential Monitoring™) transitions to 2 Amp maintenance mode automatically, holding the battery at peak voltage without overcharging for as long as the charger remains connected.\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, delivering the correct absorption voltage and float protocol for each battery type. Modern vehicles and powersports equipment increasingly use Lithium as factory-standard or aftermarket batteries — the PowerTender® 8 Amp\/2 Amp supports both chemistries correctly at full 8 Amp output.\u003c\/p\u003e\u003ch3\u003eISM: 4-Stage Charging at 8 Amp or 2 Amp\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Battery health check and chemistry confirmation before current flows\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 8 Amp output restores depleted capacity rapidly 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 at either chemistry setting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — 2 Amp maintenance current with the correct protocol for lead-acid or Lithium, delivered 24\/7, indefinitely, without overcharging\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCompatible battery size range: 20Ah to 150Ah at 12V. Lead-acid: flooded, AGM, gel cell, and sealed maintenance-free. Lithium: LiFePO4.\u003c\/p\u003e\u003ch3\u003eIP65 Weather Resistance — Permanent Installation Ready\u003c\/h3\u003e\u003cp\u003eIP65 certification provides complete dust protection and water jet resistance. The PowerTender® 8 Amp\/2 Amp can be permanently mounted in outdoor locations, engine compartments, and semi-exposed storage environments where standard indoor chargers cannot operate.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePassenger cars and light trucks requiring fast recovery charging\u003c\/li\u003e\n\u003cli\u003eMotorcycles and powersports vehicles with lead-acid or Lithium batteries\u003c\/li\u003e\n\u003cli\u003eBoats and marine vessels\u003c\/li\u003e\n\u003cli\u003eATVs, UTVs, and side-by-sides with large or Lithium batteries\u003c\/li\u003e\n\u003cli\u003eRVs and campers requiring faster charge cycles\u003c\/li\u003e\n\u003cli\u003eFleet vehicles needing rapid turnaround between storage periods\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 for lead-acid applications — increasing in cold conditions to ensure complete charging, reducing in heat to prevent overcharging. Critical for IP65 outdoor-mounted installations where temperatures vary significantly.\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 — Protects 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\u003cp\u003eThe PowerTender® 8 Amp\/2 Amp IP65 (022-1005) is the current replacement for the legacy 022-0337 unit — upgraded with IP65 weather resistance and Lithium Multi-Chemistry support.\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":55719696138609,"sku":"022-1005-DL-WH","price":109.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/1155\/9778\/files\/022-1005-DL-WH.BatteryTender.01.png?v=1755783400","url":"https:\/\/www.batterytender.com\/products\/battery-tender-12v-8-amp-2-amp-selectable-battery-charger-and-maintainer","provider":"Battery Tender®","version":"1.0","type":"link"}