Icom IC-505 Operation Manual page 10

How to extend battery life
(1) Try to keep your transmission time short.
(2) Keep sound level low during receiving.
(3) Turn the power switch off when the ІС-505 is not in use.
(4) Turn illumination lamp on only when needed.
(5) Avoid using the ІС-505 over long periods of time.
(6) Keep batteries warm when using 1С-505 in a cold environment. (When temperature drops,
battery capacity, will drop.)
Battery discharge curve
Typical battery capacity reduction in ambient temperatures is given in the аб below. This
data shows that dry cell batteries must be kept warm under cold conditions. We recommend
using the Nickel-Cadmium battery as it has higher stability against low temperatures.
Battery capacity reduction ratio against | Battery life and output power chart
ambient temperatures Testing conditions: |
e Mode: CW е Ambient temperature: 25°C
Battery discharge curve
e Repeated 3-min receiving and 1-min transmitting
S
18 Eo
pee
OR = Шан INN
2 < usable limi
o 5 A size- 5 dry ceils
о 5 ~
8 5 BEN
о о
2 O..
О m LII 5 limit ЕР
10 20 } 5 0 2 40 60 80 100 120 140 1%. 19 29
Temperature (°C) | | | — Time (min)
AC power supply |
For fixed station operation, use an AC power supply which provides 13.8V DC and capable of 3A
or more. |
A wiring guide is given below.
Connecting power supply