# LED Indicators

## Autonomous Status Indicators:

Indication | 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 |
| Low charge | Charge battery when possible
| Nearly empty | 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 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.

## Applies to: