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Spektrum RC Firma 85 Amp Brushless Smart ESC 2S
Spektrum RC Firma 85 Amp Brushless Smart ESC 2S

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Our Price: $64.99

Stock Status:Out of Stock


Like every component in the Spektrum™ Smart ecosystem, Firma™ Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics — together, creating the best-performing RC system for your vehicle imaginable.

Firma Smart ESCs do much more than regulate power. They function like a virtual engineer inside your model, providing a direct path to the vital operating data you need to reach peak performance. Firma Smart ESCs give you an extra layer of confidence that your electronics are all operating at their best.

With Firma Smart ESCs, you'll be better connected to your vehicle than ever before — without installing extra components that all work independently of each other. You won't need extra wires, modules, or links. A Firma electronic speed control provides a one-wire solution for obtaining telemetry data such as RPM, temperature, battery voltage and capacity.

Firma ESCs not only gather the data but also send it to your transmitter in real time, instead of only storing it for after-run study. You're able to adjust settings as needed to boost performance on the go. The Firma Smart single-wire telemetry solution has been tested for quality and performance by the best brands in RC. Their verdict? Smart technology is both simpler and superior!

Product Features

• Smart all-in-one telemetry
• Fast, powerful 32-bit ARM M4 processor
• Waterproof
• Multiple options for easy programming:
• Button programming
• Smart ESC Programming Box
• SmartLink USB Updating and Programmer application
• Multi-point protection:
• Over-current protection
• Automatic LiPo low-voltage cutoff
• Thermal protection
• Failsafe protection
• Developed and designed by Spektrum™ engineers, in partnership with the industry's leading ESC manufacturer
• Compact for easy installation in most applications
• Ready to install — no soldering required
• Rugged plastic case with mounting tabs
• Aluminum heat sink for high efficiency
• Cooling fan
• Adjustable high-power BEC
• Firmware updatable through the Smart ESC Programming Box
• High heat-resistant IC™ connectors, backwards compatible with EC™ connectors
• Limited 1-year warranty

Needed to Complete

  • Spektrum™ Surface Receiver
  • Spektrum Smart Technology LiPo Battery
  • Spektrum Transmitter

What's in the Box?

(1) Spektrum™ Firma™ Smart ESC
(1) Spektrum Smart sticker sheet
(1) Product Manual


Auto CutoffYes
Battery Input Lead12AWG 5.1" (130mm)
Battery TypeLiPo (3.7V per cell)
BEC Continous Current4A
BEC Maximum Burst Current8A
BEC TypeSwitch Mode
BEC Voltage6V/7.4V
Connector TypeIC3
Input Voltage7.4 - 9.6V (2-3S LiPo, 5-9 cell)
Low-Voltage Cutoff ProgrammableNo
Maximum Burst Current550A
Motor LimitWith 2S LiPo: KV ≤ 5000 - With 3S LiPo: KV≤3000
Motor Output Lead12AWG 5.1" (130mm)
Motor TypeBrushless - Sensorless
Output Connector4mm Bullet
Overload ProtectionYes
Product Height1.3" (33 mm)
Product Length1.7" (43 mm)
Product Weight0.255lbs (116g)
Product Width2.1" (53 mm)
Time Delay BrakeYes
Wire Gauge12 AWG

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