Mauch X8 Battery Kit – for up to eight batteries

From: $271.20

This complete kit provides all the components and cables necessary to power your flight controller and other onboard equipment.

What’s included:

  • 3-8x Sensor Boards: 50A, 100A, or 200A current sensors (all sensors connected to the X8 must have the same current rating)
  • 1x Power Supply: Power-Cube or BEC
  • 1x Sensor Hub X8
  • If an additional cable is required to connect a flight controller, it will be automatically added.

When using a Power-Cube to power the Pixhawk 1, make sure to select the additional flight controller cable.

Please review the Mauch warranty for returns and replacements.


Wiring schematic

1. Powering the X8:

The Sensor Hub X8 can be powered by a Power-Cube or BEC (4.95-5.05V).

Connect the special cable with 2x 4p and 2x 3p connectors as follows:

  • 1st 4p -> BEC or Power-Cube
  • 1st 3p -> X8 power port
  • 2nd 3p -> X8 sensor 1 input
  • 2nd 4p -> Sensor Board 1

2. Connecting Sensor Boards:

Up to 8 Sensor Boards with the same current rating can be connected. Sensor 1 must always be connected.

3. Resetting the X8:

After an alarm (because of over or under current), a reset of the alarm can be performed by pressing the reset switch for a short time. An alarm output and external reset cable to make an external switch and alarm relay.

4. Status LED:

RED = Initialization, alarm active or rest switch pressed.
GREEN = Initialized and no active alarm.

5. Alarm LED or buzzer:

An alarm output and external reset cable is provided to make an external switch and/or alarm relay. Any LED or buzzer can be connected here (max. 1A).
Pin 3 = P -> The middle contact of the relays.
Pin 4 = NO (normal open)
Pin 5 = NC (normal closed)

6. External LCD/OLED display:

A standard 2×16 LCD or OLED display (4 bit data bus) can be connected to use as an external display (no backlight).

Here is a suggested OLED display.

7. DIP switch:

S1 S2
OFF OFF Internal and external display OFF
OFF ON Internal display ON /  External display OFF
ON OFF Internal display OFF /  External display ON
ON ON Internal and external display ON
S3 S4 S5 S6
ON OFF OFF OFF 50A sensors
ON ON OFF OFF 100A sensors
ON ON ON OFF 200A sensors
ON ON ON ON 400A sensors

8. I2C connection:

Reserved for future use

9. Sensor Board status indicator:

_ = Sensor not connected.
II = Sensor connected and current is within limits.
L = Current is at least 25% lower than average -> alarm relay triggers.
H = Current of this sensor is at least 25% higher than average -> alarm relay triggers.

10. Sensor summary:

The number of Sensor Boards is shown along with the configured current setting (50A, 100A, 200A, 400A).

11. Total current:

The total current measured by all sensors is shown.

12. Mission Planner setup:

The output voltage from the Sensor Hub X8 is always optimized to be 0.0-3.3V from 0A to full current on all sensors. This ensures that the full range of analog input is used to get the most accurate current readings as well as capacity consumption calculation. For example:
4 x 100A Sensors = 0.0V @ 0A and 3.3V @ 400A -> Amp/Volt value = 120
5 x 200A Sensors = 0.0V @ 0A and 3.3V @ 1000A -> Amp/Volt value = 300
8 x 200A Sensors = 0.0V @ 0A and 3.3V @ 1600A -> Amp/Volt value = 480

Standard values for Amp/Volt:

Please perform the Battery Monitor configuration for ArduPilot.


The Sensor Hub X8 can be either installed via double side tape, or screwed down to the main frame, by removing the four M3 screws and drilling holes into the frame. Then reinstall the screws trough the frame. The original screws will be too short, so please replace them with longer ones according to the thickness of your frame.