{"product_id":"lithium-motorcycle-battery-ytx9-bs-ytx7a-bs-pre-charged-12v-4ah","title":"Lithium Motorcycle Battery YTX9-BS\/YTX7A-BS - Pre-Charged 12V 4Ah","description":"\u003cp\u003eIn this review the KEMIMOTO Lithium Motorcycle Battery YTX9-BS\/YTX7A-BS is evaluated as a lightweight, pre-charged replacement for small powersports lead-acid batteries. The bottom line: riders and powersports owners who want a fast-charge, long-life LiFePO4 unit that drops several pounds and starts reliably will appreciate this battery; the single biggest reason to buy is the combination of pre-charged convenience and high cold cranking capability that lets you install and start without first charging. The review highlights fit options, installation choices, and practical tradeoffs observed in real use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-charged and ready:\u003c\/strong\u003e The battery arrives pre-charged with a power display so most vehicles start without an initial charger session.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh discharge capability:\u003c\/strong\u003e Pure copper terminals and 320A cold cranking capability deliver strong starting power for motorcycles and small ATVs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable fit:\u003c\/strong\u003e Three universal EVA spacers and threaded-lug posts provide several mounting options to match YTX7A-BS or YTX9-BS sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-lived LiFePO4 chemistry:\u003c\/strong\u003e The battery is much lighter than lead-acid, charges faster, and is rated for a lengthy cycle life for frequent use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS protection:\u003c\/strong\u003e Built-in management cuts out at extreme temperatures to protect the pack and connected electronics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis battery is aimed at riders who want to reduce weight and improve starting reliability on motorcycles, ATVs, UTVs, jet skis, scooters and other small powersports vehicles. It is a good match for users who value fast charging, long cycle life and the convenience of a pre-charged unit that can be fitted quickly using the included spacers.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include people who cannot match the amp rating exactly to their original battery or who need a sealed lead-acid replacement for specific legacy chargers or vehicle systems. Also check fit and terminal orientation carefully if your battery bay is tight or uses uncommon mounting hardware.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSubstantial weight reduction compared with lead-acid, making handling and cornering marginally better.\u003c\/li\u003e\n\u003cli\u003ePre-charged and supports immediate installation without a separate charger in most cases.\u003c\/li\u003e\n\u003cli\u003eAdjustable EVA spacers and threaded terminals simplify installation across YTX7A-BS and YTX9-BS form factors.\u003c\/li\u003e\n\u003cli\u003eRobust BMS and LiFePO4 chemistry deliver long cycle life and safer charge\/discharge behavior.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report mixed longevity in field reports, so early failure has been noted anecdotally and is a realistic concern.\u003c\/li\u003e\n\u003cli\u003eMust match amp rating exactly to the original battery to avoid safety or compatibility issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKEMIMOTO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4 (Lithium)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e4Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold Cranking Amps\u003c\/td\u003e\n\u003ctd\u003e320A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e3 EVA spacers, threaded-lug posts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eBattery, 2 screws, 3 EVA spacers, user manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe KEMIMOTO LiFePO4 12V 4Ah battery is a practical, value-minded replacement for riders who want lighter weight, fast charging and reliable starting power without pre-charging. It offers useful mounting flexibility and strong BMS protections, making it good value for most motorcycles, ATVs and PWC applications, though buyers should verify amp match and be aware that a small number of users report premature failures in isolated cases.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a charger to use this battery?\u003c\/strong\u003e\u003cbr\u003eThe battery ships pre-charged and typically will start a vehicle without an initial charger, but you should verify the built-in power display and charge level before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit my YTX7A-BS or YTX9-BS battery tray?\u003c\/strong\u003e\u003cbr\u003eYes, it includes three universal EVA spacers and threaded-lug posts to adapt to YTX7A-BS and YTX9-BS style mounts, but confirm terminal orientation and physical clearance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this safe in extreme temperatures?\u003c\/strong\u003e\u003cbr\u003eYes, the integrated BMS will cut out under extreme low or high temperature conditions to protect the battery and connected electronics.\u003c\/p\u003e","brand":"KEMIMOTO","offers":[{"title":"Default Title","offer_id":48755479281883,"sku":"B0D3DJTGFJ","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61Qbf4uwzpL._AC_SL1500.jpg?v=1778798621","url":"https:\/\/gearmusthave.com\/products\/lithium-motorcycle-battery-ytx9-bs-ytx7a-bs-pre-charged-12v-4ah","provider":"GearMustHave","version":"1.0","type":"link"}