


Afterwards, try charging the battery again. Replacing the Battery(ies) Should your calculator display become very dim or erratic, replace the battery(ies). Remove the battery from the charger and then use a dry cloth or cotton swap to clean the metal contact terminals on the battery. Construction Master Pro Desktop v3.1 (44080) One 3-Volt Lithium CR-2032 battery. Construction Master Pro Desktop v3. Construction Master Pro Trig v3.0 (4080) 3. The slow flash should stop after a short while or after the temperature returns to a suitable range between 50☏ and 86☏ (10☌ and 30☌).įast flashing indicates a poor connection between the battery and charger or a problem with the battery pack. material estimation problems using the latest Construction Master Pro calculatorsthree of the most powerful feet-inch-fraction calculators to date: The Construction Master Pro IIISeries 1. Slow flashing occurs if the battery has not been charged for a long time or if the environmental temperature is not suitable for charging the battery. The CHARGE lamp may flash fast (multiple times a second) or slow (around 1.5 second intervals), depending on the cause.

