ElectroCraze 100S-BD v2 – Single Channel 100A Bidirectional Brushed Motor Controller

The ElectroCraze 100S-BD v2 is a single-channel, ultra-high-current bidirectional brushed motor controller designed for the most power-intensive RC and robotics applications. It delivers 100A continuous and 115A peak output across a 12–40V (3S–10S LiPo) supply and takes a standard servo (PWM) signal from any RC receiver.

Overcurrent protection and signal loss protection keep your motor and controller safe, and the integrated BEC powers your receiver without a separate BEC. The robust heat-shrink protected PCB makes it a strong choice for heavy combat robots, large industrial RC systems and high-performance ground vehicles.

Key Features:-

• 100A continuous output: extreme sustained power for the most demanding motors
• 115A peak current: handles massive burst loads
• Overcurrent protection: built-in current limiting protects motor and controller
• Signal loss protection: safely cuts motor output on RC signal interruption
• Integrated BEC: powers the receiver directly, no separate BEC required
• Forward / Reverse LED indication: white LED for forward, red LED for reverse

Applications:-

Heavy combat robots • High-power RC vehicles • Industrial RC systems • Heavy robotic platforms • RC boats & submarines • Large-scale RC crawlers

LED Indicator Guide:-

Wiring:-

• Power input: Red → Battery (+), Black → Battery (−)
• Motor output: Yellow (M1A) → Motor (+), Blue (M1B) → Motor (−)
• Signal: connect the servo cable to RC channel 1 on your receiver. Check ground, power and signal pin alignment. Re-bind the transmitter/receiver if no signal is detected on power-on.

The full wiring diagram is in the datasheet PDF available in the Downloads tab on this page.

Important Usage Notes:-

• Check battery polarity before connecting power. Reversed polarity causes irreversible and permanent damage.
• Designed for 12V–40V only. Voltages above 40V cause permanent damage, so confirm battery cell count before connecting.
• The board becomes very hot at high currents. Do not touch it right after use or place it near low-melting-point materials.
• Do not wrap it in insulating material; free airflow is essential to sustain the 100A continuous rating without thermal shutdown.
• Keep conductive materials away from the PCB. At 100A, instantaneous shorts can cause severe damage before any protection can respond.
• In combat robot or high-vibration builds, secure the heavy components (power capacitors) with silicone or epoxy.

Package Includes:-

• 1 × ElectroCraze 100S-BD v2 Single Channel 100A Bidirectional Brushed Motor Controller (with pre-attached wires and servo connector)