Manolo,
Choose the largest 12 to 14 volt battery that you are willing to carry
along - if the sun is shining, you may want to extend the operating time
by adding a solar panel to the battery to keep the charge level up.
The K3 draws about 900 ma. on receive, and the current will be more when
transmitting - the transmit current depends on the power level you have
set. You can calculate your operating time on any battery by referring
to the Amp/Hour rating of the battery - you will likely be able to use
it for about 1/3 of the AH rating - when the battery drops to about 11
volts, you should stop using it until re-charged. Keep the power
setting low to extend your operating time. Have fun!
73,
Don W3FPR
Manuel Pareja wrote:
> Hi elecrafters,
>
> I would like to have some advise about powering the k3 while I am portable.
> can not be very heavy because what I realy like is to go out to the mountain
> with a small backpack.
>
> 73 de Manolo EA7LL
>
>
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