MODEL 2820A & 2825A Two Diver Communicator—User Manual

INSTALLATION & OPERATION
BATTERY CONDITION CHECK 6.3
POWER ON - BATTERY CHECK
Turn power switch “ON” and observe the battery condition indicator. The battery indicator will
display the condition of the battery.
A steady green light indicates the battery has sufficient voltage to operate the unit.
A blinking green light indicates the battery is low and will need charging shortly, 2 hours of
operating time remain.
A steady red light indicates the battery voltage is too low to operate the unit.
Communication should stop.
NOTE: Batteries which have not been used for a period of time will display a higher voltage state
when initially turned on, this will rapidly dissipate. This condition is known as a surface charge,
when the battery is placed under a load the voltage will fall rapidly. It is a good idea to leave the
unit on for 5 minutes before relying upon the battery condition indicator.
Battery life is rated at 300 charge cycles, or 3 years. As with all batteries, gel cells must be treated
with a certain amount of care to achieve full life cycle. The most important single factor is not to
continue to use the battery when the battery is discharged. The second precaution which must be
followed is the prompt recharging of discharged batteries.
NOTE: Do not continue to operate rechargeable batteries below the low battery condition or
permanent damage will occur. When the battery condition indicator turns to red color, shut unit off
and charge batteries
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