Recharging the Batteries
Note: The battery LED shows the approximate charge of the batteries.
The LED will flash when battery voltage is between 3.8 and 4.0 volts.
The LED will be on continuously when battery voltage is less than 3.8 volts.
The charger requires approx. 13 hours to charge empty rechargeable batteries.
For charging, connect the plug of the charger to the recharge jack of the unit.
New or long-time out-of-use rechargeable batteries reach their best performance after being charged and
recharged five times. For Indoor applications the charger can be used as a power supply for the GL.
Alkaline batteries can be used as a backup. Insert 4 D-cell batteries noting the plus (+) and minus (-)
diagrams at the battery door.
The batteries should only be charged when the laser is between 50° F and 104° F (10°C
to 40°C). Charging at a higher temperature may damage the batteries. Charging at a
lower temperature may increase the charge time and decrease the charge capacity,
resulting in loss of performance and shortened life expectancy.
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