[Elecraft] Fwd: Bioenno's July Promotion

[Clay Autery]

That seals it...  HAM "quiet" charging/operation system is definitely on
the list now.

I bought the little 2A charger  to get me by with my little 12 Ah batt
for use with RFI/noise hunting for now.

But I'm going to start reading/researching and putting together a
requirements list for a "proper" charging/operating system for the
LiFePO batts.  I like the idea/concept of the PowerGate, RigRunner,
etc...  And it would be nice to have a system that could run from a
large cap LFP and still charge...  while during non-op periods could
charge to capacity and thence complete the cell balancing...  (I'm
assuming that is how it works generally).

Time to learn something new...  :-)

As an aside...  Jim, I think I read in one of the Bioenno batt docs that
the output voltage is somewhere around 12.8 VDC...  so it is "closer" to
nominal...  A "nice to have feature" in a system WOULD be to be able to
find a way to "boost" the voltage to 13.8+ to realize the lower full
power IMD, WHILE simultaneously keeping the power system "quiet".  Not a
priority right now.

______________________
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389

On 7/11/2016 4:55 PM, Jim Brown wrote:
> On Mon,7/11/2016 1:49 PM, Marc Veeneman via  Elecraft wrote:
>> But beware the charger RFI.  The 10 amp chargers from BioennoPower
>> are strong generators and I can't use them in the shack to recharge
>> either the battery in use or any other battery while I'm on 80 meter CW.
>
> Thanks for all of your input, Marc. Be sure to tell BioennoPower that
> the charger they sold you is unacceptable, and return it for credit.
> I've already told them it's a problem that they must solve if they are
> to be successful in the ham marketplace, but they should hear it from
> other customers.
>
> When I asked, they told me that the chargers they sell are noisy, so I
> didn't buy one. They told me that one of their dealers out east had
> recommended using the PowerGate jumpered for AGM batteries with a
> linear supply adjusted to provide the charging current, and that they
> would consider that an in-warranty setup. I'm currently doing that
> with a 100Ah battery I just bought, but I'm not thrilled with it.
>
> The difference between 12V and 14.2 volts doesn't matter for ham gear
> except that higher voltage reduces IMD in the K3 output stage at full
> power output.
>
> 73, Jim K9YC