{"product_id":"votol-em85-2sp-programmable-controller-72v-85a-peak-230a-phase-peak-sine-wave-for-mid-drive-hub-motor-ev-parts","title":"VOTOL EM85-2sp 72V 85A Sine Wave Motor Controller (230A Peak Phase Current with USB Programming Cable)","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #202223; line-height: 1.6; max-width: 100%;\"\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 20px;\"\u003e\n    Unlock high-efficiency torque and blistering top-end acceleration with the genuine \u003cstrong\u003eVOTOL EM85-2sp 72V 85A Programmable Sine Wave BLDC Motor Controller\u003c\/strong\u003e. Purpose-built for 72V light electric motorcycles, hyper-scooters, and custom EV builds, this advanced controller outputs \u003cstrong\u003e35A continuous \/ 85A peak DC current\u003c\/strong\u003e and a formidable \u003cstrong\u003e230A phase boost current\u003c\/strong\u003e.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 20px;\"\u003e\n    Featuring true Field-Oriented Control (FOC) sine wave switching and electronic flux weakening, the EM85-2sp delivers silent, shudder-free starting torque while extending motor top speed beyond standard back-EMF limits. It is natively engineered and dyno-tested to match \u003cstrong\u003eQS Motor mid-drive motors (such as the QS138 60H \/ 70H series)\u003c\/strong\u003e and high-performance QS hub motors from 1000W to 3000W. Every kit includes a dedicated \u003cstrong\u003ePC USB programming cable\u003c\/strong\u003e for precision software parameter tuning.\n  \u003c\/p\u003e\n\n  \u003cp style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Se47d8d91e43d43dd9d92a77655d835a1O.jpg\" alt=\"VOTOL EM85-2sp Controller and USB Programmable Cable Kit\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eKey Highlights \u0026amp; Engineering Features\u003c\/h2\u003e\n  \u003cul style=\"padding-left: 20px; margin-bottom: 24px;\"\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eFormidable 230A Phase Current:\u003c\/strong\u003e Delivers instant throttle punch and steep hill-climbing authority with 85A peak DC battery current and 230A phase peak boost.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eSmooth FOC Sine Wave Operation:\u003c\/strong\u003e Eliminates motor vibration, cogging, and electrical noise, providing silky-smooth low-speed modulation and maximum motor efficiency.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eElectronic Flux Weakening:\u003c\/strong\u003e Dynamically optimizes stator field timing at higher RPMs to unlock 15%–25% higher top speed without requiring battery voltage increases.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eAluminum Substrate Architecture:\u003c\/strong\u003e High-amperage imported MOSFETs are mounted directly onto an aerospace-grade aluminum baseplate for rapid heat evacuation to the outer finned heatsink.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eOne-Line (YXT) Speedometer Support:\u003c\/strong\u003e Features standardized single-wire digital speedometer signal output for clean dashboard integration.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003ePC USB Programmability:\u003c\/strong\u003e Fine-tune phase current, low-voltage cutoff, regen braking intensity, throttle curves, and flux weakening via the included Windows PC software.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv style=\"background-color: #fff9e6; border-left: 4px solid #ffb800; padding: 14px 18px; margin: 24px 0; border-radius: 4px;\"\u003e\n    \u003cp style=\"margin: 0; font-weight: 600; color: #8a6100; font-size: 15px;\"\u003eMotor Pre-Configuration Notice:\u003c\/p\u003e\n    \u003cp style=\"margin: 6px 0 0 0; font-size: 14px; color: #664d03;\"\u003e\n      To ensure optimal performance right out of the box, please include your motor details in the order notes at checkout:\n      \u003cbr\u003e• \u003cstrong\u003eHub Motors:\u003c\/strong\u003e Specify motor model, rated power, pole pairs, and wheel diameter\/rated speed.\n      \u003cbr\u003e• \u003cstrong\u003eMid-Drive Motors:\u003c\/strong\u003e Specify motor model (e.g., QS138 60H) and rated power.\n      \u003cbr\u003eOur technical team will pre-program the baseline parameters before shipping. Complete PC software and English tuning manuals are supplied with your order.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eTechnical Specifications Matrix\u003c\/h2\u003e\n  \u003cdiv style=\"overflow-x: auto; margin-bottom: 24px;\"\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; text-align: left; font-size: 14px; border: 1px solid #e1e3e5;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr style=\"background-color: #f7f8f9;\"\u003e\n          \u003cth style=\"padding: 10px 14px; border: 1px solid #e1e3e5; width: 35%;\"\u003eParameter\u003c\/th\u003e\n          \u003cth style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eSpecification\u003c\/th\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eBrand \/ Series\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eVOTOL Genuine EM Series\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eModel Designation\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eEM85-2sp\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eRated System Voltage\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e72V DC (Operating range 60V–84V DC)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eRated Continuous DC Current\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e35A\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003ePeak Battery DC Current\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e85A\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003ePeak Phase Boost Current\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e230A\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eDrive Waveform\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eFOC Sine Wave (Field-Oriented Control)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eMatched Motor Power\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e1000W – 2000W Nominal (Up to 3000W+ Peak)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eSpeed Signal Communication\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eOne-Line (YXT) Protocol\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eChassis Construction\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eCast Aluminum Heatsink Body with Aluminum Substrate\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eApprox. Unit Weight\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e0.9 kg\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cp style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S40e93329300a4fac962a4ab766b647b6t.jpg\" alt=\"VOTOL EM85-2sp Full Technical Specifications Table\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eMechanical Dimensions \u0026amp; Dyno Bench Performance\u003c\/h2\u003e\n  \u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin: 24px 0;\"\u003e\n    \u003cdiv style=\"flex: 1 1 calc(50% - 16px); max-width: calc(50% - 16px); min-width: 260px;\"\u003e\n      \u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S7f97b7c119044c15851673f257d7d313C.jpg\" alt=\"VOTOL EM85-2sp Mechanical Drawing Dimensions\" style=\"width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex: 1 1 calc(50% - 16px); max-width: calc(50% - 16px); min-width: 260px;\"\u003e\n      \u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S7ee486ea778344a1add50acdf76c9340k.jpg\" alt=\"VOTOL EM85-2 with QS138 60H Dyno Test Report\" style=\"width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eProgramming Cable \u0026amp; Software Interface\u003c\/h2\u003e\n  \u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin: 24px 0;\"\u003e\n    \u003cdiv style=\"flex: 1 1 calc(50% - 16px); max-width: calc(50% - 16px); min-width: 260px;\"\u003e\n      \u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S014bfd854e334a0f845ac443d4d1ba6c0.png\" alt=\"VOTOL USB Debugging Cable and Pinout\" style=\"width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex: 1 1 calc(50% - 16px); max-width: calc(50% - 16px); min-width: 260px;\"\u003e\n      \u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S9fbe0f1d50104def87bd088b2aa5aaddU.jpg\" alt=\"VOTOL PC Software Programming Interface\" style=\"width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eWiring Harness \u0026amp; Connection Pinout Schematic\u003c\/h2\u003e\n  \u003cp style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sb45292b2a93e453ba0a88927ebc804d1y.jpg\" alt=\"VOTOL EM85-2sp Wiring Harness Diagram\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n  \u003cdiv style=\"margin-bottom: 24px;\"\u003e\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: What is the primary difference between the EM85-2sp and earlier EM-series controllers?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: The EM85-2sp features updated MOSFET driver hardware laid on an aluminum substrate for significantly cooler thermal characteristics, increased phase boost current (up to 230A), and refined low-speed throttle mapping.\u003c\/p\u003e\n\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: Can I use this controller with non-QS motors?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: While the EM85-2sp is pre-optimized for QS Motor hub and mid-drive platforms, it can drive any 72V BLDC motor with Hall sensors. When pairing with third-party motors, you will need to perform Hall angle matching and parameter calibration using the included USB cable and software.\u003c\/p\u003e\n\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: Does this model support CAN BUS communication?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: No, the EM85-2sp uses a standardized One-Line (YXT) communication protocol for instrument displays and speedometers. If your setup strictly requires CAN BUS communication, please consult with our team before ordering.\u003c\/p\u003e\n\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: Where can I download the programming software and drivers?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: Once your order is placed, our support team will provide a secure download link for the Windows PC debugging software, USB driver (CH340\/PL2303), and step-by-step PDF manual.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eInternational Shipping \u0026amp; Logistics Notice\u003c\/h2\u003e\n  \u003cdiv style=\"background-color: #f9fafb; border: 1px solid #e1e3e5; border-radius: 8px; padding: 18px; margin-bottom: 20px;\"\u003e\n    \u003cp style=\"margin-bottom: 10px; font-size: 14px; color: #444;\"\u003e\n      \u003cstrong\u003eFree Worldwide Tracked Shipping:\u003c\/strong\u003e Every VOTOL controller is pre-tested, packaged with shock-absorbent custom foam, and dispatched with international parcel tracking.\n    \u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 10px; font-size: 14px; color: #444;\"\u003e\n      \u003cstrong\u003eCustoms \u0026amp; Import Clearance:\u003c\/strong\u003e Orders are processed under standard cross-border trade terms. Buyers are responsible for any destination country customs assessments or local import duties.\n    \u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 0; font-size: 14px; color: #444;\"\u003e\n      \u003cstrong\u003eAccurate Contact Info:\u003c\/strong\u003e Please verify your shipping address and contact telephone number at checkout to ensure seamless courier communication upon arrival.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Quanshun","offers":[{"title":"Default Title","offer_id":67801571000534,"sku":"1005013002743073-Default Title","price":114.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0252\/5878\/6893\/files\/Se37b761338d14be6a99d045fe9728075d.webp?v=1793111273","url":"https:\/\/e-smartway.com\/products\/votol-em85-2sp-programmable-controller-72v-85a-peak-230a-phase-peak-sine-wave-for-mid-drive-hub-motor-ev-parts","provider":"E Smart Way ","version":"1.0","type":"link"}