{"product_id":"lawnmaster-clmf4821a-cordless-lawn-mower-21in-brushless-power","title":"LawnMaster CLMF4821A Cordless Lawn Mower 21in - Brushless Power","description":"\u003cp\u003eOur review of the LawnMaster CLMF4821A finds it best suited to homeowners with small to medium yards who want the convenience of cordless mowing without gas upkeep. The single biggest reason to consider this mower is its combination of brushless power and a four-battery kit that delivers up to about 48 minutes of runtime in typical light-to-moderate use, making it a practical choice for yards up to roughly 1\/2 acre. Assembly is quick and tool-free, the controls are straightforward, and the 3-in-1 cutting options mean it handles mulching, bagging, or side discharge with no extra parts to buy.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrushless motor:\u003c\/strong\u003e Provides up to 3400 RPM for consistent cutting performance over thick grass without gas or oil maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-battery kit:\u003c\/strong\u003e Includes four 24V MAX 4.0Ah batteries and a dual charger so you can swap and charge to maintain extended runtime during a mowing session.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eiPower Technology display:\u003c\/strong\u003e Shows cutting mode and battery level so the mower manages power automatically and helps prolong battery life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-in-1 function:\u003c\/strong\u003e Offers bagging, side discharge, or mulching options so users can choose the best finish for their lawn and season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable cutting heights:\u003c\/strong\u003e Six positions from 1.4in to 3.4in let you quickly adapt the deck height for turf health or seasonal needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact storage:\u003c\/strong\u003e Folding push handles and an upright storage profile reduce footprint for small garages or sheds.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe CLMF4821A is well suited to owners of small to medium yards up to about 1\/2 acre who value cordless convenience and a quieter, low-maintenance alternative to gas mowers. If you need simple operation, quick assembly, and the flexibility to bag, mulch, or side-discharge clippings, this mower covers those bases while remaining relatively lightweight for carrying and transport.\u003c\/p\u003e\u003cp\u003eBuyers with very large properties, long continuous run requirements, or those who expect heavy commercial use should look elsewhere for longer single-battery runtime or higher-capacity power systems. Also, if absolute maximum runtime per single battery is critical, note that customer reports on battery life are mixed and actual runtime varies with grass conditions.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePowerful brushless motor that cuts thick grass effectively without gas or oil.\u003c\/li\u003e\n\u003cli\u003eIncludes four batteries and a dual charger for extended mowing sessions and quick turnaround.\u003c\/li\u003e\n\u003cli\u003eThree cutting modes and six height positions deliver flexible lawn finishing options.\u003c\/li\u003e\n\u003cli\u003eLightweight design and folding handles for easy assembly, transport, and storage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBattery life reports are mixed, so runtime can vary significantly with real-world conditions.\u003c\/li\u003e\n\u003cli\u003eDesigned for up to 1\/2 acre; not ideal for larger properties or continuous commercial use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeck width\u003c\/td\u003e\n\u003ctd\u003e21 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower system\u003c\/td\u003e\n\u003ctd\u003eBrushless 48V MAX (two 24V batteries)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBatteries included\u003c\/td\u003e\n\u003ctd\u003e4 x 24V MAX 4.0Ah lithium-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo-load speed\u003c\/td\u003e\n\u003ctd\u003eUp to 3400 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCutting height positions\u003c\/td\u003e\n\u003ctd\u003e6 positions, 1.4 in - 3.4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrass bag capacity\u003c\/td\u003e\n\u003ctd\u003e15 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRuntime\u003c\/td\u003e\n\u003ctd\u003eUp to about 48 minutes (varies by use)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe LawnMaster CLMF4821A is a practical, value-minded cordless mower for homeowners with yards up to roughly 1\/2 acre who want brushless performance without gas maintenance. Its four-battery kit and 3-in-1 deck give flexibility for most residential needs, and the compact foldable design saves storage space. If your priority is quiet, easy-to-maintain mowing and versatile cut options, it represents a sensible choice; those needing longer continuous runtime should consider higher-capacity systems.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHow long will the batteries run?\u003c\/strong\u003e\u003cbr\u003eRuntime is stated as up to about 48 minutes with the included batteries, but actual time varies with grass length, terrain, and cut settings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it bag, mulch, and side-discharge?\u003c\/strong\u003e\u003cbr\u003eYes, the mower supports 3-in-1 function: bagging into a 15-gallon bag, mulching, or side discharge.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs assembly difficult?\u003c\/strong\u003e\u003cbr\u003eAssembly is simple and tool-free for most users; many owners report it takes only a few minutes to set up.\u003c\/p\u003e","brand":"LawnMaster","offers":[{"title":"Default Title","offer_id":48744805040347,"sku":"B0DXV8R98R","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71CE_bUbcEL._AC_SL1500.jpg?v=1778771535","url":"https:\/\/gearmusthave.com\/products\/lawnmaster-clmf4821a-cordless-lawn-mower-21in-brushless-power","provider":"GearMustHave","version":"1.0","type":"link"}