{"product_id":"antigravity-batteries-ag-401-lithium-small-case-12v-powersports-battery-ultra-light-15-2-oz-120-cranking-amps","title":"Antigravity Batteries AG-401 Lithium Small Case 12V Powersports Battery — Ultra-Light 15.2 oz, 120 Cranking Amps","description":"\u003cp\u003e\u003cstrong\u003eThe Antigravity AG-401 is an ultra-compact, ultra-lightweight 12V lithium powersports battery built for race and performance applications where every ounce and millimeter matters.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe AG-401 Small Case packs 120 cranking amps into a tiny 4.375 x 1.37 x 3.75 inch footprint and weighs only 15.2 ounces (0.95 lbs). It’s engineered for closed-course racing, small displacement bikes, race conversions and custom builds that require strong starting power without bulk. Because it is a purpose-built race battery, it omits a Battery Management System (BMS) to save weight and maximize output; this requires users to follow lithium-compatible charging and maintenance routines.\u003c\/p\u003e\n\n\u003ch3\u003eHow much starting power can this tiny battery deliver?\u003c\/h3\u003e\n\u003cp\u003eDespite its small size, the AG-401 supplies 120 cranking amps at 12 volts and a 6Ah lead-acid equivalent rating (2.6Ah actual capacity). That combination delivers reliable starts for small engines and many race setups within its intended limits. It’s optimized for short, high-current draws common in starting systems rather than long-term accessory loads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e120 cranking amps for strong engine starts\u003c\/li\u003e\n  \u003cli\u003e6Ah Pb-eq rating (2.6Ah real) for size-performance balance\u003c\/li\u003e\n  \u003cli\u003eCompact dimensions fit tight battery trays and custom mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat charging and maintenance does the AG-401 require?\u003c\/h3\u003e\n\u003cp\u003eBecause the AG-401 lacks an internal BMS, you must use a charger rated for lithium batteries and follow proper charge profiles. Maintain a regular charging routine after rides and avoid deep discharges or prolonged parasitic drains. For best life and safety, pair the battery with charging systems designed for lithium chemistry and monitor voltage when storing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRequires a lithium-compatible charger — do not use standard lead-acid chargers\u003c\/li\u003e\n  \u003cli\u003eAvoid applications with constant parasitic draw or long accessory use\u003c\/li\u003e\n  \u003cli\u003eStore at recommended voltages and recharge after each race session\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this battery fit my bike and electrical setup?\u003c\/h3\u003e\n\u003cp\u003eThe AG-401’s small case dimensions make it ideal for race bikes, small-displacement motorcycles, dirt bikes, ATVs and lightweight custom installations. Verify physical dimensions and terminal orientation against your battery tray and starter cable routing. It’s not engineered for passenger cars or vehicles with significant accessory loads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasures 4.375 x 1.37 x 3.75 inches — verify tray clearance\u003c\/li\u003e\n  \u003cli\u003eCompact form factor suits tight or custom battery compartments\u003c\/li\u003e\n  \u003cli\u003eNot recommended for vehicles with parasitic drains or heavy accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the AG-401 safe for everyday street use?\u003c\/h3\u003e\n\u003cp\u003eThe AG-401 is primarily a race-focused battery and is labeled for closed-course use; it’s not intended as a drop-in street replacement in most consumer motorcycles. Street applications with continuous electronics or unpredictable charging behavior increase the risk of battery damage. For non-racing daily riders, Antigravity recommends models with integrated management features.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntended for race and track use — designed to prioritize weight and power\u003c\/li\u003e\n  \u003cli\u003eLacks BMS, so not ideal for street bikes with accessory loads\u003c\/li\u003e\n  \u003cli\u003eChoose Antigravity RE-START series for regular street use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this battery is for: The AG-401 is aimed at experienced riders, mechanics and race teams who need a featherweight starting source for closed-course competition, small-displacement race bikes, dirt bikes or tight custom builds. If you understand lithium charging requirements, can confirm fitment and intend to avoid systems with steady parasitic drain, this battery offers exceptional weight savings and starting performance. If you want a plug-and-play street replacement or require integrated protection, consider Antigravity’s street-focused models instead.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use the AG-401 on my daily street motorcycle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The AG-401 is designed for race use and lacks a BMS; use a street-rated Antigravity model for daily riding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What charger do I need for the AG-401?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use a charger specifically rated for lithium 12V batteries with the proper charge profile; do not use standard lead-acid chargers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Antigravity Batteries","offers":[{"title":"Default Title","offer_id":48080415490206,"sku":"B07NPYXXHF","price":184.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/antigravity-ag-401-front-packaging.jpg?v=1785781100","url":"https:\/\/northtrailauto.ca\/products\/antigravity-batteries-ag-401-lithium-small-case-12v-powersports-battery-ultra-light-15-2-oz-120-cranking-amps","provider":"North Trail Auto","version":"1.0","type":"link"}