Firma 85A Brushless Smart ESC for 2WD and 4WD Vehicles (SPMXSE1085)

Firma 85A Smart Brushless ESC is a high-performance electronic speed controller designed for 1/10-scale 2WD and 4WD RC cars powered by 2S–3S LiPo packs. It does more than regulate motor power: it also acts as a telemetry hub, sending real-time data such as RPM, voltage, temperature and battery capacity to a compatible transmitter over a single wire, so you can monitor performance on the fly.

Built for reliability in all conditions, this waterproof enclosure features a rugged plastic housing, an aluminum heat sink, and a cooling fan to keep temperatures in check during spirited driving. It’s ready to install with no soldering required and offers flexible programming options—from button setup to the Smart ESC Programming Box and a Smart Link USB PC app. The unit provides a 6V or 7.4V high-current BEC (up to 4A) to power the receiver and servos and uses IC-series battery connectors, with backward compatibility to EC3/EC5 for straightforward integration into most 1/10-scale builds.