[Elecraft] Good Battery for K3 Portable Ops

[Don Wilhelm]

Paul,

You did not say whether that is a K3/10 or K3/100 and whether you have 
the extra current draw of the subRX, nor what your transmit power level 
would be, so we cannot give you a realistic answer.
If you are backpacking, you will want the least weight, but if you are 
going to a picnic table from your vehicle and have a hand-truck to carry 
the battery, I use a 75 ampere-hr AGM battery.  If I have to carry the 
batteries in my hand, I operate at 10 watts or less and use a couple of 
7AH Gel Cells (SLA).  I like the reliability and safety of SLA 
technology despite its heaver weight than more modern battery technologies.

73,
Don W3FPR

On 8/12/2013 5:36 PM, PGrig wrote:
> I would appreciate knowing the experiences of folks who have run their K3 on battery power for several (4-8?) hrs., with perhaps a 20% TX duty cycle.  What types and sizes of batteries seem to be the best balance of staying power and portability?
>
>     -Paul Grigorieff, N1HEL
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