MAINTENANCE & TROUBLESHOOTING
4-3
The charging circuit of the Q-RAE Plus is built into the monitor.
Plug the AC to 12 V DC wall mount transformer adapter (or the
automotive charging adapter) into the power source and
connect the power jack to the monitor. The charging LED
should be red during charging and green when fully charged.
Smart charging circuitry protects the battery from overcharge,
so removing the charger is not required.
Note: For European markets, Adapter P/N 500-0072 is
required.
The battery drains slowly even if the monitor is turned off. After
about 25 days, the battery voltage will be low.
4.2. Alkaline Battery Adapter
The AA Alkaline battery adapter supplied by RAE Systems
is intrinsically safe!
An alkaline battery adapter accepts two AA batteries and can
be used in place of the Li-ion battery pack, as shown below, to
provide approximately 6 hours of operation, when there is no
time to charge the Li-ion battery pack.
Figure 7. Alkaline Battery Adapter
The internal charging circuit of Q-RAE Plus will automatically
detect the alkaline battery adapter and prevent the charging of
alkaline batteries.
