{"product_id":"craftsman-12a-car-battery-charger-and-maintainer-for-all-vehicles","title":"CRAFTSMAN 12A Car Battery Charger and Maintainer - 4-in-1 Solution","description":"\u003cp\u003eOur review of the CRAFTSMAN CMXCESM258 finds it best suited for weekend mechanics and vehicle owners who need a single, reliable tool to service cars, motorcycles, ATVs, and marine batteries. The bottom line: it is a practical 4-in-1 unit that combines charging, maintaining, testing, and reconditioning in one compact AC-powered package, with up to \u003cstrong\u003e12-amp charging power\u003c\/strong\u003e for quicker starts and a smart trickle mode for long-term battery care.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-in-1 functionality:\u003c\/strong\u003e Charges, maintains, tests, and reconditions batteries so one tool handles routine care and recovery of weak batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple charge rates:\u003c\/strong\u003e Offers 12-amp fast charging plus 3-amp and 2-amp modes for maintenance and smaller 6V batteries, giving flexibility across applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide battery compatibility:\u003c\/strong\u003e Works with 6V and 12V batteries including standard, AGM, lithium (LiFePO4), and deep-cycle types for broad vehicle support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart trickle charge:\u003c\/strong\u003e Maintains batteries safely over long periods without overcharging, useful for seasonal storage and infrequently used equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery reconditioning:\u003c\/strong\u003e Advanced desulfation mode helps recover sulfated batteries to extend life and improve performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in tester and protection:\u003c\/strong\u003e Includes a battery tester for quick diagnostics and reverse polarity protection to prevent accidental damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis charger is a good fit for owners of cars, trucks, motorcycles, ATVs, and small marine craft who want one device to handle daily charging and long-term maintenance. Hobbyists and home mechanics will appreciate the tester and reconditioning mode when dealing with aging batteries.\u003c\/p\u003e\n\u003cp\u003eIt is less suited to users who need a true portable booster with internal battery power, since this unit must remain plugged in during use. Also, those expecting guaranteed recovery of every automotive battery should note that some customers report mixed results with heavily degraded car batteries.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVersatile 4-in-1 design covers charging, maintenance, testing, and reconditioning in one unit.\u003c\/li\u003e\n\u003cli\u003eSupports multiple battery chemistries including LiFePO4 and AGM, broadening usability.\u003c\/li\u003e\n\u003cli\u003eSmart trickle and lower amp modes are ideal for long-term battery storage and smaller batteries.\u003c\/li\u003e\n\u003cli\u003eLightweight and easy to use, offering good value for those who need regular battery care.\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 it does not revive every automotive battery, so results can vary with heavily damaged batteries.\u003c\/li\u003e\n\u003cli\u003eRequires AC power and cannot act as a standalone jump starter for immediate engine starts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eCMXCESM258 4-in-1 Charger and Maintainer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge rates\u003c\/td\u003e\n\u003ctd\u003e12A fast charge, 3A maintain (12V), 2A maintain (6V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltages\u003c\/td\u003e\n\u003ctd\u003e6V and 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible battery types\u003c\/td\u003e\n\u003ctd\u003eStandard, AGM, LiFePO4, deep-cycle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctions\u003c\/td\u003e\n\u003ctd\u003eCharge, maintain, test, recondition (desulfation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety features\u003c\/td\u003e\n\u003ctd\u003eReverse polarity protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003eAC powered with 6-ft power cord and booster cables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe CRAFTSMAN CMXCESM258 is a practical, cost-effective solution for maintaining a garage of seasonal or daily vehicles. Its \u003cstrong\u003e12-amp charging\u003c\/strong\u003e option and maintenance modes deliver flexibility, the built-in tester and reconditioning help extend battery life, and the smart trickle function makes it a solid value for most DIYers and small-boat owners.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit charge both 6V and 12V batteries?\u003c\/strong\u003e\u003cbr\u003eYes, it supports 6V and 12V batteries with dedicated 2A mode for 6V and 3A\/12A modes for 12V batteries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it work with lithium batteries?\u003c\/strong\u003e\u003cbr\u003eYes, the charger is compatible with LiFePO4 lithium batteries as well as standard and AGM types.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it function as a portable jump starter?\u003c\/strong\u003e\u003cbr\u003eNo, this model is AC powered and must be plugged in during use; it is not a standalone jump starter with an internal battery.\u003c\/p\u003e","brand":"CRAFTSMAN","offers":[{"title":"Default Title","offer_id":48121178652891,"sku":"B09QY1F644","price":56.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71k3BJYAyKL._AC_SL1500.jpg?v=1768395493","url":"https:\/\/gearmusthave.com\/products\/craftsman-12a-car-battery-charger-and-maintainer-for-all-vehicles","provider":"GearMustHave","version":"1.0","type":"link"}