Voltage Monitoring Device

A voltage monitoring device for monitoring voltages of more than one battery, wherein the voltage monitoring device comprises:

• more than one voltage sensor, wherein each voltage sensor is configured to measure a voltage value of a battery;
• and
• a housing configured to contain the more than one voltage sensor;
• wherein the voltage monitoring device is configured to:
• connect a voltage sensor to terminals of each battery, such that each voltage sensor is connected to a battery;
• measure a voltage value of each battery connected to a voltage sensor, wherein during the measurement the battery being measured is electrically connected only to the corresponding voltage sensor;
• record the voltage value of each battery against a battery identifier and a time stamp;
• output the recorded voltage values, wherein outputting the recorded voltage values comprises displaying the recorded voltage values on a display;
• and
• in an event that a recorded voltage value is below a threshold voltage, provide a low voltage notification.