LED Indicators

Autonomous Status Indicators:

Flash pattern	Battery status	Remark
No indication	Good	Battery is healthy and performing well
Steady yellow light for 1.5 second	Self-test when powering on	Battery operational after 1.5 second
Steady yellow light	Battery cell temperature out of range: Too high temperature	Let battery cool before continuing operation
	Battery cell temperature out of range: Too low temperature	Make sure ambient temperature is within range See Ambient Temperature
	Too high discharge current to tool	Check the tool configuration Remove battery from tool
	Too high charge current	Remove battery from charger and replace charger
	Invalid charger	Use appropriate charger See Battery Charger Data in Safety Information found on ServAid
	Too high voltage applied externally to battery connector	Use appropriate charger See Battery Charger Data in Safety Information found on ServAid
Steady red light	Unrecoverable error	Replace battery

State of Charge (SOC) Indicators:

Press release button (1) to show SOC indication (2).

Indication	Battery charge	Remark
	Full charge
	Medium charge	Charge battery when possible
	Low charge	Charge battery
	Empty	Charge battery

When attaching the battery to the charger, the charging procedure will start and go on for 20 seconds. The charging is then temporarily stopped as the battery performs a self-test. The self-test continues for 10 seconds and after this the battery resumes charging again.

State of Health (SOH) Indicators:

SOH indicates how much of the original capacity that is left in the battery cells, that is, how much the battery has degraded since it was new.

SOH is not an indication of current battery charge.

When the button is pressed for 10 seconds the battery SOH is shown, as listed below:

Indication	Flash pattern	State of Health (SOH)
	1 flash, green	More than 80% of the original capacity
	1 flash, yellow	Between 70-80% of the original capacity
	1 flash, red	Less than 70% of original capacity

Manual Status Indicators:

When the release button is pressed for 20 seconds the current battery state is shown by the LEDs in position 3 flashing in sequence, as listed below.

Battery 14V (4211613002) with generation letter A and B is not equipped with a green LED. The green LED is instead indicated with red light, as described in Battery 14V LED Behavior.

LED Sequence	Battery State
Green, green, green	Sleep, normal state
Green, green, yellow	Idle, normal state
Green, green, red	Empty, normal state
Green, green, white	Charge over temperature, transient state
Green, yellow, green	Charge under temperature, transient state
Green, yellow, yellow	Discharge over temperature
Green, yellow, red	Discharge under temperature
Green, yellow, white	Charge over current
Green, red, green	Discharge over current
Green, red, yellow	MOSFET over temperature
Green, red, red	No parameters
Green, red, white	Calibration mode
Green, white, green	Fully charged state
Green, white, yellow	Discharging
Green, white, red	Charging
Yellow, green, green	Transport mode
Yellow, green, yellow	Powering down
Yellow, green, red	Cell temperature sensor broken
Yellow, green, white	MOSFET temperature sensor broken
Yellow, yellow, green	Cell voltage too low
Yellow, yellow, yellow	Cell voltage too high
Yellow, yellow, red	Cells are unbalanced
Yellow, yellow, white	Pack is over voltage
Yellow, red, green	Charge MOSFET is broken
Yellow, red, yellow	Discharge MOSFET is broken
Yellow, red, red	Initializing at startup
Yellow, red, white	Discharge off, test mode
Yellow, white, green	Charge off, test mode
Yellow, white, yellow	Discharge and charge off, test mode
Yellow, white, red	Disconnect from charger state
Yellow, white, white	Charger is invalid
Red, green, green	Charge software is wrong version
Red, green, yellow	Charge FET self-test
Red, green, red	Discharge FET self-test
Red, green, white	Sum of cell voltages not accurate
Red, yellow, green	Faulty cell connector
Red, yellow, yellow	Accumulator over voltage
Red, yellow, red	Mismatch between temperatures
Red, yellow, white	Pack over temperature
Red, red, green	Over charged
White, white, red	Pack is dead

Battery Power-off

If the release button is pressed for more than 60 seconds, all three white SOC indicators (2) will flash one by one, in sequence. After 30 seconds of indicators flashing the battery will power-off.