13 TECHNICAL NOTES
13.1. BATTERY CHARGING
The MWRSM Mobile wireless remote speaker microphone should be charged overnight
before initial use. Thereafter it may be left in the charger unit between calls, or may be
worn all day and placed back at the end of the work day. The unit is designed to
provide about 15-24 hours operation between charges even on the busiest radio
channels.
On quiet channels it can last up to 3-4 days. When the battery does start to go flat, a
short beep will sound once every 2 minutes. It will then automatically power down
after 30 minutes, so you should plan to recharge the unit as soon as is practical once
the chirps are heard. A fully discharged battery will typically recharge in less than 3-4
hours, or less if only partially discharged. The battery will recharge even if the mobile
charger unit has been turned off. The microphone’s blue status light will indicate
charging mode.
Battery Charging.
Simply place into pocket.
The MWRSM will beep to show correct
placement
NB: do not allow debris to fill
the pocket as it may prevent the microphone
from making contact with the charging pins
Keep all liquids well away from the charging
cradle at all times.
Table 1: Battery Charging.
Doc Number:
TNM-U-E-0180 ISSUE 1.1
Page
26
