Spektrum Firma 85A Brushless Smart ESC 2S-3S

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
Ideal for 2WD and 4WD 1/10th scale surface applications running on 2S - 3S Lipo setups
High current adjustable BEC (6v or 7.4v @ 4 Amps)
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

Product Overview
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!

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

WATERPROOF
The all-weather, waterproof design of Spektrum™ Firma™ Smart ESCs allows them to perform in nearly any terrain under almost any conditions. Firma ESCs keep you going through dust, gravel, snow, and water.

EC3™/EC5™ BACKWARDS COMPATIBLE
Firma™ ESCs feature IC™ series battery connectors. The IC series of connectors are designed from the ground up to provide a more solid connection, higher heat resistance, and effortless installation. When used with an IC3™ or IC5™ connector-equipped Spektrum™ Smart battery, the ESC can receive and transmit battery telemetry data. EC3 and EC5 are also compatible with Firma ESCs for basic operation and ESC telemetry.

ONE-WIRE TELEMETRY
No need to connect multiple wires, sensors, modules, and links. With Firma™ ESCs, simple one-wire telemetry transmits a wide range of data directly to your transmitter in real time, including RPM, voltage, temperature, balance, capacity, and speed.*

SMART TECHNOLOGY BATTERY DATA
When used with a Spektrum™ Smart LiPo battery, your Firma™ ESC provides you with the benefit of battery telemetry that's automatically transmitted to your compatible Spektrum radio in real time. On your transmitter screen you'll be presented with helpful information such as number of cycles, battery percentage, individual cell voltage and more!

MULTIPLE PROGRAMMING OPTIONS
Multiple programming options are available. Button programming can be used with nothing more needed. Using the Smart Firma™ ESC Programming Box, you can easily change settings at the track to suit driving conditions. An easy-to-use Smart Link USB Updating and PC Programmer app is also available.

FAST, POWERFUL M4 PROCESSOR
The Firma™ ESCs' 32-bit M4 processor produces higher resolution signal input and more accurate motor output.

Product Specifications
Connector Type IC3
ESC Type Brushless
Product Length 1.7" (43 mm)
BEC Maximum Burst Current 8A
BEC Voltage 6V/7.4V
Input Voltage 2S - 3S LiPo, 5 - 9 cell NiMH
Motor Limit With 2S LiPo: KV = 5000 - With 3S LiPo: KV = 3000
Motor Output Lead 4mm
Product Application Surface
Product Height 1.3" (33 mm)
Sensored No
Time Delay Brake Yes
Forward Yes
Reverse Yes
Wire Gauge 12 AWG
Amperage 80A - 99A
BEC Type Switch Mode
Max Input Voltage 11.1V
BEC Yes
Battery Input Lead IC3
Product Width 2.1" (53 mm)
Technology Smart
Application Surface
Auto Cutoff Yes
BEC Continous Current 4
Low-Voltage Cutoff Programmable No
Output 85A
Output Connector 4mm Bullet
Overload Protection Yes
Product Weight 4.1oz (116g)
Water-Resistant Yes
Battery Type LiPo (3.7V per cell)
Brakes Yes
Programmable Yes
Programming Options Button, Programming Box, Smartlink App, On Screen Text Gen
Maximum Burst Current 550A
Motor Type Brushless