{"title":"Tazuma Heavy Duty AGM Batteries","description":"","products":[{"product_id":"tazuma-65-agm-heavy-duty","title":"TAZUMA-AGM65 Heavy Duty Battery","description":"\u003cp\u003eThe \u003cstrong\u003eTAZUMA-AGM65\u003c\/strong\u003e is a 750 CCA, 120-minute reserve heavy duty AGM battery for Group 65 vehicles — Ford F-150 through F-450, Expedition, Lincoln Navigator, Ford E-Series cutaway chassis, and Winnebago Ford-chassis motorhomes. The right AGM choice for daily-driver Group 65 trucks and SUVs with stock or light accessory loads, and for fleet operators upgrading from flooded chassis batteries. For trucks running heavy upfits — winches, light bars, plows, bed-mounted inverters, off-road service — Odyssey TPPL is the upgrade path. 24-month full replacement warranty handled directly by West Coast Batteries.\u003c\/p\u003e\n\u003ch3\u003eWhat This Battery Is Built For\u003c\/h3\u003e\n\u003cp\u003eGroup 65 is the standard battery format for full-size Ford and Lincoln trucks, SUVs, Ford E-Series cutaway chassis, and the motorhome platforms built on those chassis. The TAZUMA-AGM65 is the AGM choice for daily-driver Group 65 vehicles with stock or light accessory loads, and for fleet and chassis operators upgrading from flooded:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFord F-150\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(1997–present, including 2017+ models with auto start-stop, which require AGM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFord F-250, F-350, and F-450 Super Duty\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(gas configurations and cab-and-chassis variants; diesel models typically use dual Group 65 batteries)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFord Expedition\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand Excursion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLincoln Navigator\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand Mark LT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFord E-450 and E-550 Super Duty cutaway chassis\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— Class C motorhomes, shuttle buses, and fleet box trucks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinnebago Ford-chassis motorhomes\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Adventurer, Access, Access Premier, and similar Class A and Class C configurations)\u003c\/li\u003e\n\u003cli\u003eEarlier\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMercury Mountaineer\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econfigurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy AGM Over Flooded\u003c\/h3\u003e\n\u003cp\u003eMost Group 65 vehicles still leave the dealer with flooded batteries, and most replacements sold for them are still flooded. On a passenger car driven gently, that's adequate. On a daily-driver F-150 cycled through cold-weather starts, a fleet pickup that sits between routes, or a motorhome chassis sitting through summer heat between trips — flooded is the reason the battery dies in 18 to 24 months. AGM construction addresses the failure modes flooded has in those duty cycles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo liquid acid.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAGM absorbs the electrolyte into compressed fiberglass mat separators. Flooded batteries — even ones labeled \"sealed\" or \"maintenance-free\" — still have liquid acid moving inside the case under chassis vibration. AGM eliminates that.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration tolerance.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompressed plate construction holds up to the rough-road and jobsite vibration that shortens flooded battery life on work trucks and chassis-mounted equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable voltage as the battery cycles.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAGM delivers more consistent voltage than flooded under typical Group 65 accessory loads — running boards, basic bed lighting, telematics, and similar OEM or light-upfit electronics. Heavy upfits use Odyssey TPPL instead.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart-stop cycling capability.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2017 and newer F-150 models with auto start-stop require AGM. Flooded batteries cannot handle the cycling those systems put on the battery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eSAE top-post terminals — your existing cables bolt directly on. Most Group 65 vehicles do not require battery registration after install. For 2017+ F-150 models with start-stop, the Battery Monitoring System will recalibrate to the new battery over the next several drive cycles; optional registration via FORScan or a Ford dealer scan tool will speed up that process but is not required for proper operation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does AGM actually change over a flooded battery in my F-150 or F-250?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAGM construction puts the electrolyte in glass mat separators rather than as free-flowing liquid acid inside the case. On a daily-driver F-150 or a fleet pickup running stock or light accessory loads, that delivers measurable durability differences: vibration tolerance, more consistent cranking power as the battery ages, and the cycling capability 2017+ start-stop F-150 systems require. If you've replaced flooded batteries every 2 to 3 years and you're not running heavy upfits, AGM should give you longer service life. For trucks with winches, light bars, plows, or bed-mounted inverters, see the Odyssey TPPL upgrade path.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes my F-150 need anything special after install?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor most Group 65 vehicles, no — disconnect the negative cable, swap the battery, reconnect. For 2017+ F-150 with start-stop, the Battery Monitoring System adjusts to the new battery over normal drive cycles. Optional registration via FORScan or a dealer tool speeds up that adjustment but is not required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this the right battery for my Class C motorhome chassis?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor Ford E-450\/E-550 cutaway chassis and Winnebago Ford-chassis motorhomes replacing a flooded chassis battery, the TAZUMA-AGM65 is the baseline AGM upgrade. For motorhomes with heavy accessory loads or extended dry-camping, the Odyssey TPPL upgrade path offers longer cycle life and faster recharge.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eI run a fleet of work trucks. How do I get pricing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWCB supports fleet accounts directly with volume pricing and stocking programs.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"\/pages\/contact\"\u003eContact our fleet team\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewith your fleet size and typical replacement volume.\u003c\/p\u003e","brand":"Tazuma","offers":[{"title":"Default Title","offer_id":52403331039541,"sku":"TAZUMA-AGM65","price":285.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1184\/7989\/files\/Tazuma-AGM65-Front.jpg?v=1777492866"},{"product_id":"tazuma-31t-agm-heavy-duty","title":"TAZUMA-AGM31T Heavy Duty Battery","description":"\u003cp\u003eThe \u003cstrong\u003eTAZUMA-AGM31T\u003c\/strong\u003e is an 825 CCA, 200-minute reserve heavy duty AGM battery for Group 31 commercial vehicles using the SAE stud-terminal configuration — Class 4-7 work trucks, fleet vans, RVs, farm equipment, and commercial service equipment. The right AGM choice for fleet, construction, and commercial operators upgrading from flooded HD batteries — better vibration tolerance, longer service life, and more consistent voltage than flooded under fleet-typical duty cycles. For applications with heavy parasitic accessory loads, frequent deep cycling, or mission-critical fleet duty, Odyssey TPPL is the upgrade path. 24-month full replacement warranty handled directly by West Coast Batteries.\u003c\/p\u003e\n\u003ch3\u003eWhat This Battery Is Built For\u003c\/h3\u003e\n\u003cp\u003eGroup 31 is the standard battery format for commercial trucks, fleet equipment, and work vehicles in the US. The TAZUMA-AGM31T is the SAE stud-terminal version — the configuration used in HD trucks, work vans, and fleet applications. 825 cold cranking amps handles diesel cranking in cold conditions, and 200 minutes of reserve provides the runtime to power lighting, telematics, lift-gate hydraulics, and accessory loads when the engine is off. Common applications:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass 4-7 commercial trucks:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFord F-450 and F-550, Ram 3500 and 4500, Chevrolet Silverado 3500 HD and 4500 HD, Freightliner medium-duty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCab-over and box trucks:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIsuzu NPR and NQR, Hino 195 and 268, GMC W-Series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFleet vans:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMercedes-Benz Sprinter, Ram ProMaster, Ford Transit (HD configurations).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRV house battery banks\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand motorhome chassis batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFarm equipment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eJohn Deere and Case IH tractors and combines in Group 31T configurations — for operators upgrading from flooded HD batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight construction and industrial equipment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBobcat skid steers, compact Caterpillar equipment, and stand-alone industrial generators and compressors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUtility and service equipment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eaerial lifts, jobsite equipment, fleet service trucks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy AGM Over Flooded for Fleet Duty\u003c\/h3\u003e\n\u003cp\u003eA flooded HD battery in a fleet truck deals with conditions that don't apply to a passenger car: chassis-mounted compressors and PTO pumps transmitting vibration to the battery, repeated rough-road impacts, high heat from engine compartment proximity, and the cycling that comes with daily-route fleet use. Each of those conditions is harder on flooded chemistry than on AGM:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo liquid acid.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAGM absorbs the electrolyte into glass mat separators. Flooded HD batteries — even ones labeled \"sealed\" or \"maintenance-free\" — still contain liquid acid that moves under vibration and damages plates over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeeper cycling than flooded.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAGM tolerates the moderate cycling depth that lift-gate cycling and overnight key-off accessory loads put on the battery during routine fleet duty. Flooded chemistry sulfates faster under repeated cycling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable voltage under fleet-typical accessory loads.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eModern fleet vehicles run telematics, GPS trackers, refrigeration, and basic upfit electronics from the same battery the engine cranks from. AGM holds voltage more consistently than flooded as the battery cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced fleet downtime.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor operators tracking battery-related service calls, the durability difference between flooded and AGM HD batteries shows up directly in roadside failure rates and replacement intervals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eThe TAZUMA-AGM31T uses stud terminals — verify your cable end terminals and hardware match before install. At 67 lbs, plan for a two-person lift or use a battery carrier. Confirm Group 31 fitment in your vehicle (Group 31A is top-post and Group 31R is reverse polarity — both are different SKUs).\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does AGM actually change over a flooded HD battery?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFlooded HD batteries still have liquid acid inside, regardless of whether they're labeled \"sealed\" or \"maintenance-free.\" AGM absorbs the electrolyte into glass mat separators, which means better vibration tolerance under chassis flex and rough-road conditions, deeper cycling capability for accessory and aux power loads, and more consistent voltage delivery as the battery ages. For fleet operators, that translates to fewer roadside failures and longer replacement intervals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is this different from a Group 31A or Group 31R?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAll three share the same case dimensions but use different terminal configurations. The 31T (this product) uses SAE stud terminals — the standard for commercial trucks and fleet vehicles. The 31A uses SAE top posts. The 31R has reverse polarity (positive and negative terminals swapped). Verify your existing battery's label and cable ends before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eI run a fleet. How do I get pricing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWCB supports fleet accounts directly with volume pricing and stocking programs.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"\/pages\/contact\"\u003eContact our fleet team\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewith your fleet size and typical replacement volume and we'll set up an account that fits your operation.\u003c\/p\u003e","brand":"Tazuma","offers":[{"title":"Default Title","offer_id":52403344671029,"sku":"TAZUMA-AGM31T","price":305.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1184\/7989\/files\/Tazuma-AGM31T-Back.jpg?v=1777492295"}],"url":"https:\/\/wcbatteries.com\/collections\/tazuma-heavy-duty.oembed","provider":"WCB | West Coast Batteries","version":"1.0","type":"link"}