Notes On Charging; Battery Level Indicator - mcmurdo R2 GMDSS Owner's Manual

2.7 Notes on Charging

• NiCad batteries are supplied uncharged and need
charging before use.
• Charge the battery up to full charge when not in
use, although it may lose some of its charge after
several months of storage. 12v DC
• Do not charge at temperatures below 0ºC or
above 40ºC.
• Turn off if charging battery while fitted to the
radio.
• Always try to fully discharge the battery before
recharging - repeated recharging of the battery
while it is partly discharged may create a 'memory
effect', preventing the battery reaching full charge.
• Dispose of used batteries carefully. The contents
of the batteries could be harmful to the environ-
ment.
• Never expose to a naked flame.
AC
• IMPORTANT : The Lithium battery pack
Mains
(available only with the R2 GMDSS model)
are not rechargeable, and under no circum-
stances should any attempt be made to
recharge these batteries. Replacement lithi-
um cells can be re-ordered from your local
McMurdo Agent, quoting part No. 84-210.

2.8 Battery Level Indicator

Except when adjusting the Volume or Squelch, the
bar graph on the display shows the battery charge
level (Fig 2.7). This indicates the voltage at the bat-
tery terminals, not necessarily the charge stored.
Fig 2.6 - Charging Options
Ten or nine bars indicate a fully charged battery,
three or four bars mean the battery is almost
drained.
• When using a lithium battery pack, the low level
battery indicator may flash under transmit condi-
tions. This does not necessarily reflect the charge
level remaining in the battery, as it is due to the dif-
ferent voltage characteristics of a Lithium battery
pack under load.
Replacement and spare batteries are available from
your local McMurdo Agent. Please quote the rele-
vant part number.
Fig 2.7 - Battery level indicator
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