The Battery Status Monitor (BSM) is a limited range Light Emitting Diode (LED) voltmeter, designed to monitor the voltage across a 12V battery in a motorcycle situation. It can give an early warning of problems due to over or under charging, and indicate a 'tired', below capacity battery. When connected as recommended the BSM can also function as an 'ignition on' warning lamp. The monitor is protected against electrical abuse and will give stable results even in adverse conditions and temperatures, reverse connection will not cause damage. The electronics "cube" is only 21mm on each edge so is easily hidden. 

               BATTERY STATUS MONITOR (DEEP DISCHARGE)-FITTING INSTRUCTIONS 

CONNECTIONS: Join the positive (RED) and negative (BLACK) wires to the ignition circuit and ground, according to the machine?s polarity. On the handlebar version one core of the ?figure-of-eight? cable has a faint ridge running along the outside, this is the positive lead. For positive ground machines RED (ridged) will be to ground and BLACK to ignition. If the unit fails to light up the connections could be reversed; the unit will not be damaged.

This product allows a user to track electrical system voltage on any vehicle with a normal 12-volt charging system. When the orange, yellow or green light is on the battery is being charged correctly. If the ?high? red light is on the system voltage is too high and damage to the battery may result. When the ?low? red light is on the system voltage is too low and the battery is being discharged. These indications are valid only with the engine running.

READINGS	Voltage	Color	Meaning
	Less than 10.75V	RED	Battery low or loaded with engine not running
	11.0V	ORANGE	Battery loaded with engine running
	12.0V	YELLOW	Sufficient energy in battery
	12.25V	GREEN	Battery on charge
	More than 15V	RED	Over charging or charge system high voltage

This product allows a user to track battery voltage on any 12V vehicle. Primary use is determining when to recharge a battery in a total loss application, commonly found in racing. When the green light is on the battery is fully charged. When the orange and yellow light is on there is still sufficient voltage to operate the ignition. When the red light is on the battery should be charged as soon as possible.

READINGS	Voltage	Color	Meaning
	Less than 10.75V	RED	Battery low, stop now.
	11.0V	ORANGE	Sufficient energy in battery-low.
	12.0V	YELLOW	Sufficient energy in battery-high.
	12.25V	GREEN	Battery fully charged.
	More than 15V	RED	Over charging or charge system high voltage.

Operation

	As the voltage across the battery changes the LED colour changes:
RED	More than 15V - Over charging or charge system high voltage.
GREEN	12.25V  - Battery fully charged.
YELLOW	12V - Sufficient energy in battery.
ORANGE	11V  -   Sufficient energy in battery - CAUTION.
RED	Less than 10.75V - Battery low.

Fits Norton, Triumph, BSA and other British motorcycles with a 12V electrical system.