{"product_id":"antigravity-xps-ytx20-lithium-battery-left-side-negative-terminal","title":"1984-2025 Harley-Davidson Softail\/Dyna Antigravity XPS YTX20 Lithium Battery 780 CA Left Side Negative","description":"\u003cp\u003eThe Antigravity XPS YTX20 is the Extreme Power Series battery in the standard YTX20 case, and it is the model Antigravity itself directs big-inch builders to: for V-twins over 103 cubic inches or high-compression builds, the RE-START line is not recommended and the XPS YTX20 is. It delivers 780 cranking amps and enough sustained current to turn over 145 cubic inch S\u0026amp;S motors, from a battery that weighs 4.68 pounds and drops straight into the stock tray.\u003c\/p\u003e\u003cp\u003eThis is the left side negative terminal version; choose the orientation that matches the cable routing in your tray.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e780 cranking amps with the sustained current delivery large high-compression V-twins need\u003c\/li\u003e\n\u003cli\u003eRated by Antigravity for motors up to 145 cubic inches\u003c\/li\u003e\n\u003cli\u003eDeeper allowable discharge than RE-START models for more usable capacity\u003c\/li\u003e\n\u003cli\u003e4.68 lbs in the standard YTX20 case, a drop-in installation\u003c\/li\u003e\n\u003cli\u003e32Ah PbEq capacity\u003c\/li\u003e\n\u003cli\u003eLiFePO4 chemistry; holds a charge over a year without parasitic drains\u003c\/li\u003e\n\u003cli\u003eLarge all-brass terminal design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCharge only with a lithium-compatible (LiFePO4) charger such as the Antigravity SC-2 or SC-4 Super-Charger. Lead\/acid chargers, especially those with desulfation or recondition modes, can damage lithium batteries.\u003c\/li\u003e\n\u003cli\u003eNo built-in RE-START jump starting on this model; keep a maintainer connected during long storage.\u003c\/li\u003e\n\u003cli\u003eCheck state of charge every 4 to 6 months if the bike carries parasitic drains such as alarms, trackers, or always-on accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVoltage: 12V\u003c\/li\u003e\n\u003cli\u003eCranking amps: 780 CA\u003c\/li\u003e\n\u003cli\u003eCapacity: 32Ah PbEq\u003c\/li\u003e\n\u003cli\u003eCase: YTX20\u003c\/li\u003e\n\u003cli\u003eWeight: 4.68 lbs\u003c\/li\u003e\n\u003cli\u003eTerminal configuration: left side negative\u003c\/li\u003e\n\u003cli\u003eChemistry: LiFePO4\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDirect replacement for the YTX20, YTX20-BS, YTX20L, and YTX20H battery positions in Harley-Davidson Softail, Dyna, 1979-2003 Sportster, and 2008-2017 V-Rod models. Also used in custom V-twin, race, and high-performance automotive applications where maximum cranking power in a compact case is needed.\u003c\/p\u003e","brand":"Antigravity Batteries","offers":[{"title":"Default Title","offer_id":54303113216313,"sku":"ANTAG-YTX20-L","price":409.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/1557\/3561\/files\/1847f94cf524b3fc286f57a88614a3ee.jpg?v=1785806992","url":"https:\/\/tires-fast.com\/products\/antigravity-xps-ytx20-lithium-battery-left-side-negative-terminal","provider":"Tires Fast","version":"1.0","type":"link"}