[Elecraft] K1 Battery Solution

[Fred Jensen]

Mike, KD9KC, found some "9.8Ah" Li-Ion batteries on eBay, for Buy It Now 
price of $38.  We both bought one.  It turns out you get about 7.5Ah 
before the voltage hits the low cutoff on my K2 and his FT-817, but that 
works out to about 10-14 hrs of "semi-contest" operating time.  They 
came without instructions and all the printing on them is in Chinese 
[tried for a translation at the local Sechuan restaurant ... not so 
good], but they came with a wall-wart charger.  Rose built my case to 
hold it in a side pocket, it weighs about 14oz.  I can send you a photo 
if you would like.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2011 Cal QSO Party 1-2 Oct 2011
- www.cqp.org

On 1/9/2011 9:04 PM, Brett Howard wrote:
> I'm looking for a good low weight small volume battery solution for using
> with the K1.   I'd like to keep it outside the radio. I'll simply plug it
> into the back of the radio to power it.  I'll probably put the same plug as
> is in the radio onto a charger or just make some APP pigtails...
>
> I'd like to be able to run the radio at full power so being able to get to
> 13+ volts would be great. I'd like charging to be fairly simple and safe.
> I'd like the battery as well as the radio to fit into one of Rose's K2
> cases... Another thing is that I would like a solution that will have decent
> longevity if it's somewhat expensive. But if its a fairly inexpensive cell
> then I'd put up with replacement every so often.   I'd like to be able to at
> least get 4 hours at full power using "normal contest operating"
> assumptions. I'll probably only use it casually so that should allow for
> more like 7 to 8 total hours hopefully.