{"product_id":"cf2805","title":"Emax CF2805 2840KV Brushless Motor for 2S Li-Poly, 22x5mm Stator, 3mm Shaft, 29g","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe \u003ca href=\"https:\/\/rcdrone.top\/collections\/emax\" title=\"Emax\"\u003eEmax\u003c\/a\u003e CF2805 2840KV motor is a brushless motor specified for 2S Li-Poly setups and compact electric model aircraft power systems. It is rated for APC 6x4 and 7x4 propeller testing, with published RPM, current, and thrust figures for each prop.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCF2805 motor, 2840 RPM\/V (KV)\u003c\/li\u003e\n\u003cli\u003e2S Li-Poly support\u003c\/li\u003e\n\u003cli\u003e3 mm shaft diameter\u003c\/li\u003e\n\u003cli\u003ePublished performance data with APC 6x4 and APC 7x4 props\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eCF2805\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo. of cells\u003c\/td\u003e\n\u003ctd\u003e2 x Li-Poly (2S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRPM\/V\u003c\/td\u003e\n\u003ctd\u003e2840\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStator dimensions\u003c\/td\u003e\n\u003ctd\u003e22 x 5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft diameter\u003c\/td\u003e\n\u003ctd\u003e3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e29 g \/ 1.02 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended model weight\u003c\/td\u003e\n\u003ctd\u003e200-300 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended prop without gearbox\u003c\/td\u003e\n\u003ctd\u003eAPC 7x4; APC 6x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest prop (APC)\u003c\/td\u003e\n\u003ctd\u003e6x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRPM (APC 6x4)\u003c\/td\u003e\n\u003ctd\u003e13000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax current (APC 6x4, \u0026lt;60S)\u003c\/td\u003e\n\u003ctd\u003e12 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThrust (APC 6x4)\u003c\/td\u003e\n\u003ctd\u003e413 g (0.91 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest prop (APC)\u003c\/td\u003e\n\u003ctd\u003e7x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRPM (APC 7x4)\u003c\/td\u003e\n\u003ctd\u003e9900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax current (APC 7x4, \u0026lt;60S)\u003c\/td\u003e\n\u003ctd\u003e14.4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThrust (APC 7x4)\u003c\/td\u003e\n\u003ctd\u003e381 g (0.84 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical drawing (key dimensions)\u003c\/td\u003e\n\u003ctd\u003eOuter diameter: 28.5 mm; Shaft: 3 mm; Lengths: 10.9 mm \/ 25.6 mm \/ 36.5 mm; Front face: inner diameter 22 mm; Mounting: 4 x 3.0 mm holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eElectric model aircraft around 200-300 g\u003c\/li\u003e\n\u003cli\u003e2S Li-Poly power systems using APC 6x4 or APC 7x4 propellers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor compatibility questions (prop selection, 2S setups, and installation), contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Emax CF2805 2840KV brushless motor specs and test results on 2S Li-Poly with APC 6x4 and 7x4 props\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Emax-CF2805-2840KV-Motor.webp?v=1778436187\"\u003e\u003cp\u003ePerformance specs include RPM, current draw, and thrust figures for APC 6x4 and 7x4 propeller testing on 2S Li-Poly setups.\u003c\/p\u003e\n\u003cimg alt=\"CF2805 motor mechanical dimension drawing with 28.5 mm outer diameter, 3 mm shaft, and 4×3.0 mm mounting holes\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Emax-CF2805-2840KV-Motor.jpg?v=1778436193\"\u003e\n\u003c\/div\u003e","brand":"Emax","offers":[{"title":"Default Title","offer_id":52600763875552,"sku":"0101001001-1","price":27.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/ScreenShot_2026-05-10_195141_566.png?v=1778413947","url":"https:\/\/rcdrone.top\/products\/cf2805","provider":"RCDrone","version":"1.0","type":"link"}