125A 3-7S Brushless Electric Speed Controller

Features:

●Auto detect the cells and type of batteries, and set the cutting-off voltage accordingly, 6V/9V for 2 and 3 cell lipo, and 0.8V/cell for Ni-Mh/NiCd batteries.

●Safe start, it will not start up when throttle at wrong position.

●Over-temperature protection: The ESC will stop working when surface temperature is over 110℃.

●Lose signal protection: The ESC will stop when lost control signal for over 1 second.

Specifications:

Type: GX-125A-OPTO

· Weight: 83.4g / 2.92 oz (with wires)

· Size: 65 x 40 x 12 mm

· Constant Current:125A (under good cooling condition)

· Max Current: 150A (for ten seconds)

· BEC: No

· Cut-off: 3.0V per cell for Lipo

· PWM: 8 Khz, 16Khz

· Input: 5 – 20 Ni-Mh/Ni-Cd or 3 – 7 Lipo (6-30V)

Setting:

1. Cut-off main power of speed controller, switch on the transmitter and receiver.

2. Move throttle stick to up position (full open)

3. Switch on the main power of speed controller

4. Wait for beeps of the speed controller

Options of set up:

1. Cut-off voltage

option 1. Ni-Mh battery, auto setup

option 2. cut-off for 7S lipo

option 3. cut-off for 6S lipo

option 4. cut-off for 5S lipo

option 5. cut-off for 4S lipo

option 6. cut-off for 3S lipo

2. Start-up mode

option 1: auto set-up throttle range

option 2: fixed throttle range

option 3: high acceleration (hard start)

option 4: low acceleration (soft start)

3. brake

option 1: no brake

option 2: light brake

option 3: medium brake

option 4: heavy brake

4. Running features

option 1: default running direction

option 2: reverse runing

option 3: hard brake

option 4: soft brake

5. Timing modes

option 1: 2°

option 2: 7°

option 3: 15°

option 4: 30°

6. PWM modes

option 1: 8K

option 2: 16K