{"product_id":"promariner-prosporthd-gen-4-onboard-marine-battery-charger-6-to-20-amp-1-to-3-bank","title":"ProMariner ProSportHD Gen 4 Onboard Marine Battery Charger - 6 to 20 Amp, 1 to 3 Bank","description":"\u003cp\u003eThe ProMariner ProSportHD Gen 4 series is a lineup of fully automatic, waterproof onboard marine battery chargers built to keep flooded, AGM, HP AGM, and GEL batteries topped off and healthy season after season. Each charger uses a 5-stage fully automatic charging program that soft-starts, bulk charges, absorbs, and maintains connected batteries without risk of overcharging, so boats can be plugged in at the dock indefinitely. The ProSportHD line scales from a compact single-bank 6 amp charger for smaller boats and single-battery setups up to a 3-bank 20 amp unit capable of maintaining a full house bank plus a dedicated engine-start battery. All models share the same rugged, marine-grade construction: waterproof housings, industrial jacketed AC and DC cabling, molded strain reliefs, and UL Marine 1236 certification for safe onboard installation below deck or in the bilge.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: ProMariner\u003c\/li\u003e\n\u003cli\u003eCharging Stages: 5-Stage Fully Automatic\u003c\/li\u003e\n\u003cli\u003eBattery Types Supported: Flooded, AGM, HP AGM, and GEL, Group 24-31\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: 12 Volts DC (12\/24V on the 44008)\u003c\/li\u003e\n\u003cli\u003eInput Voltage: 120\/240 Volts AC\u003c\/li\u003e\n\u003cli\u003eCertifications: UL Marine 1236, CEC, DOE, FCC Class B\u003c\/li\u003e\n\u003cli\u003eWarranty: 3 Year Manufacturer Warranty\u003c\/li\u003e\n\u003cli\u003eHousing: Waterproof, corrosion-resistant marine-grade enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eThis ProSportHD Gen 4 line is available in outputs ranging from 6 Amp to 20 Amp, across 1-Bank, 2-Bank, and 3-Bank configurations. Match the charger to your battery bank: choose the number of banks equal to the number of separate batteries you need to charge independently (for example, a 3-bank charger can maintain a house bank plus a starting battery plus a bow thruster battery on its own isolated circuit), and size the total amperage so each bank receives roughly 10-20% of that battery's amp-hour capacity for efficient recharging. The 44008 model additionally supports 12\/24V systems for boats wired with a 24-volt bank.\u003c\/p\u003e","brand":"ProMariner","offers":[{"title":"6 Amp \/ 1 Bank","offer_id":49049074335963,"sku":"PRO-44006","price":135.99,"currency_code":"USD","in_stock":true},{"title":"8 Amp \/ 2 Bank (12\/24V)","offer_id":49049074368731,"sku":"PRO-44008","price":171.03,"currency_code":"USD","in_stock":true},{"title":"12 Amp \/ 2 Bank","offer_id":49049074401499,"sku":"PRO-44012","price":211.0,"currency_code":"USD","in_stock":true},{"title":"20 Amp \/ 2 Bank","offer_id":49049074434267,"sku":"PRO-44020","price":249.99,"currency_code":"USD","in_stock":true},{"title":"20 Amp \/ 3 Bank","offer_id":49049074467035,"sku":"PRO-44021","price":264.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/44006__67218.1739462855.500.750_5dd68a89-f197-4fbb-8f1f-c6ea80c1b3a2.jpg?v=1785450645","url":"https:\/\/www.goodvibesmarina.com\/products\/promariner-prosporthd-gen-4-onboard-marine-battery-charger-6-to-20-amp-1-to-3-bank","provider":"Good Vibes Marina","version":"1.0","type":"link"}