How long will the ALS2 battery last?
The ALS2 is powered by a rechargeable battery with a 10 year shelf life. Storage and/or operation of the ALS2 battery at temperatures higher than 80°C will decrease the amount of power that the battery can hold. The AVS battery temperature should never exceed 100°C. The battery is not user serviceable. It is replaced during the calibration service. Typically a well functioning ALS2 battery will last 4 to 5 hours when fully charged.