I believe there was concern about charging a Lithium based battery
inside the radio.
Would you want to bet your KX2's life on the risk of a battery fire?
I know the arguments about cellphones and laptops, but some of those
were catching fire at the time the KX2 was designed and the decision
I find that I rarely use the internal KX2 battery unless I know I only have
a short time to operate. For longer outings I use a larger external pack or
I bring along my spare internal size packs but just plug them into the
external connector. Even at 12W the KX-2 sips power. Great piece of kit.
I got 25 or so removal/installs out of the KX2 battery before one of the power
leads broke off where it entered the battery pack. I figured it was a
manufacturing defect where the wire fatigued without support of the insulation.
I replaced it with a 12v/5v 6 Ah lithium pack for about half of
It will not charge now. It would be GREATLY convenient if it could.
In simplest case, allow charging from DC input if input voltage is <=12.6V
and charge current is < 2A.
Not sure what is the reason not to allow it. Perhaps concerns about
counterfeit batteries without a chip, and possibility of
Having had an external LiPoly R/C battery burst into flames while
plugged into my KX1, I don't think I'd ever put Lithium
inside my radio. I know there are a bunch of lithium chemistries, some
less volatile than others, but watching the little package "sparken und
fizzen" on our gravel
The KX2 battery will NOT charge from the external power jack - the
lithium battery must be removed for charging. Unless handled with a
heavy hand, the bottom of the KX2 will withstand many, many removals and
installs.
If you are concerned about removing the bottom of the KX2, you can
always
Thank you for the suggestion. Here is something similar:
https://www.amazon.com/gp/product/B07V3L4YF3/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8=1
Wonder whether they are RF quiet?
My thinking with KX2 that I take it with me,without anything external, use
portable, and then at home charge via
Use a USB-C PD power bank, and a USB-C power sink, and you can power the
KX2 handily. I can power my KX3 that way, and most of my other QRP rigs as
well. The sink I use is the PD Buddy Sink found on Tindie. It handshakes
with the PD power bank and provides 12v at 2-3A (depending on the bank). I
This is a QRP radio that likes traveling. Mine has even been on a small boat
ride in Adriatic sea... Or working DX SSB in a contest big time (with 9A1A
antennas).
If only a USB charge can be added. I am afraid that the radio will survive
only so many case openings...
Ignacy, NO9E
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: [Elecraft] Feature density of portable transceivers: K1 vs. KX2
A morning break in the rain today in the Bay Area allowed me to sneak out
for some field operation with the KX2. While using every weapon in the KX2's
arsenal, I thought about how to best convey just how feature-dense this
radio
A morning break in the rain today in the Bay Area allowed me to sneak out for
some field operation with the KX2. While using every weapon in the KX2's
arsenal, I thought about how to best convey just how feature-dense this radio
is.
To appreciate it, you really need to hold the rig in your
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