[Elecraft] KX3 Batttery life question..

[Dave KK7SS]

Wayne,

Fabulous <VBG>
Sounds perfect for the operating conditions I'm considering - portable, 5W, internal pack, 2M, ATU and ???

Many thanks... (still drooling!)

--
Dave G  KK7SS
 Richland, WA

'59 Morris Minor 1000 - working on it..
'65 Sprite - in process :(
'76 Midget - co-owned with #4 Son :)
'06 Honda Civic Hybrid

----- "Wayne Burdick" <n6kr at elecraft.com> wrote:
 
> Receive-mode current drain will typically be 130-170 mA depending on
> supply voltage, backlight level, whether the preamp is on, etc. So a
> 2500 milliamp-hour internal 8-AA battery pack would provide an average
> of about 16 hours of continuous use. This is 2 to 3 times what you'd
> get with other small all-band/all-mode radios that consume ~350-450 mA
> in receive mode.
> 
> Transmit current varies with power level, band, supply voltage and
> other factors, but in general it's about 1 amp at 5 watts and 2 amps
> at 10 watts. At 10 W, you could probably run for 10-20 hours from a
> 12V 7AH battery, assuming typical hunt-and-pounce or casual operation.
> 
> Transceive operating time from an internal battery will be determined
> by voltage or energy-density limitations of the 8 AA cells being used.
> You'd probably be transmitting something like 10% of the time (good
> QRP practice). Assuming a 2500 mA-hr pack, 1 A current drain in TX
> mode, and 150 mA RX, you might get as many as 10 hours of casual 
> operation.