Version 2.6
©Copyright 2013, Ambient LLC. All Rights Reserved.
Page 10
If the unit is not to be used for an extended period of time, remove the batteries. Old or
leaking batteries can cause damage to the unit and may void the warranty.
Do not dispose of batteries in fire, batteries may explode or leak.
6.6
Power Consumption
The WR-333A includes a 3.7V rechargeable Lithium Ion large battery capacity (600 mAh) as the
primary energy storage, but different operational modes result in significantly varying power
consumption requirements. Here is a general guide on power consumption, typical user operation and
recommend power sources.
Mode
Typical User Operation
Power
Consumption
Recommend Power Source
Flashlight
Emergency or remote use
Low
Solar, Hand Crank, AAA
Batteries
AM/FM/Weather
Band Radio
Emergency or remote use
Low
Solar, Hand Crank, AAA
Batteries
Weather Alert
Continuous monitoring (1)
High
AC, USB (from computer),
Hand Crank, AAA Batteries
Smart phone
charging
Short term emergency use (2)
High
AC, USB (from computer),
Hand Crank
(1)
The weather alert mode consumes a significant amount of power because it is constantly
scanning for the emergency 1050 Hz tone from the National Weather Service. We
recommend connecting the power input to a USB computer port or the optional USB to AC
converter for continuous alert operation (reference Section 11). Otherwise, you must rely on
hand crank power in this mode when no power is available.
(2)
The AAA batteries may not provide enough current to charge a smart phone.
7.
Operation
7.1
Flashlight Operation
Turn the light on and off with the light switch on the top of the unit (Figure 1).
7.2
Radio Operation
The WR-333A includes a digital LCD display (Figure 7) with backlighting, with the following push
button controls:
POWER
. Turns on and off the radio. Transitions from clock display to radio tuner
display.
MODE
. Switches the radio band between AM, FM, weather band, and weather band alert
mode.
TUN
:
Adjusts the radio frequency up
TUN
:
Adjusts the radio frequency down
VOL+:
Adjusts the radio volume up
VOL-:
Adjusts the radio volume down
NOTE:
The backlight will automatically turn off if no buttons are pressed for 20 seconds.