inventor61 . wrote
> I had strongly considered the LiPo type secondary-cell power packaging
> option and rejected it.
>
> Energy density in that chemistry/package is amazing of course. But that
> equation is also true of a bomb. I have no problem with the LiPo in my
> iPad, Galaxy S5 phone, and
On 9/13/2015 3:23 AM, Bill W4ZV wrote:
I understand and agree for your use case of mounting the battery internally
in the K2. My "fail safe" is to never use an internal battery and thus
avoid issues of fire, leakage, etc. I always charge and mount my LiPOs
externally. It's certainly possible
Thanks for that info, Myron. VERY important!
73, Jim K9YC
On Sat,9/12/2015 11:33 AM, Myron WVØH wrote:
BatterySpace does not add balance circuitry, only over/under I/V protection.
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BatterySpace does not add balance circuitry, only over/under I/V protection.
What that means is when you charge, the first cell to reach its full voltage,
the charge terminates leaving the other cells undercharged. Nothing offered on
their website contains any balancing function.
You can get
On Sat,9/12/2015 8:37 AM, inventor61 . wrote:
I had strongly considered the LiPo type secondary-cell power packaging option
and rejected it.
There are mfrs of well protected LiFePO4 battery packs. Two I found are
Battery Space and Bioenno Power. Both make packs in a wide variety of
shapes
Hi Steve,
I'm following this topic with great interest! I've been using my K2 for
extended operations (8 hours) from SOTA summits and have been lugging a 5
pound 7AH SLA. Needless to say I'm very interested in going on a weight
diet for the K2!
I've had good success using external 1AH LiPOs
I had strongly considered the LiPo type secondary-cell power packaging
option and rejected it.
Energy density in that chemistry/package is amazing of course. But that
equation is also true of a bomb. I have no problem with the LiPo in my
iPad, Galaxy S5 phone, and laptop, so, it's not a blind
Steve...
Thanks for the info and for your effort in getting this item up and
running. Question: installing this battery in the K2 requires the
Elecraft battery mounting hardware, yes? Charging the new battery uses
the SLA battery charging circuit, yes? Thanks in advance.
Elecraft...
If this
On 9/11/2015 10:39 AM, Robert G Strickland wrote:
Steve...
Thanks for the info and for your effort in getting this item up and
running. Question: installing this battery in the K2 requires the
Elecraft battery mounting hardware, yes? Charging the new battery uses
the SLA battery charging
Some of the better LiFePO SLA replacement batteries, have built in
Over-charge, balance, Over-discharge circuitry in the package enabling you
to use a standard 2 wire SLA charge setup. They are usually more expensive
than the standalone battery pack, but for internal use, a useful option.
--
I have recently received the LiFePO4 battery pack I ordered for the K2 and
which I mentioned in an earlier posting.
Upon receipt I checked it out mechanically. It looks very nicely made.
The supplied pigtail is terminated with the mating internal K2 Molex DC
connector.
I charged the new pack
Hello
My older K2, #771, is still in use after almost 16 years since I built it.
I have the internal sealed lead-acid gel cell battery option. I have the
charge circuit slightly modified using the kit from ProAudio Engineering,
and I use their superb external power supply as well.
I get great
@mailman.qth.net
Subject: [Elecraft] [K2] LiFePO4 replacement for internal SLA battery in K2
Hello
My older K2, #771, is still in use after almost 16 years since I built it.
I have the internal sealed lead-acid gel cell battery option. I have the
charge circuit slightly modified using the kit
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