[hpsdr] Off Topic: Fast Charger for Base Station Batteries - Specifically LiFePO4

[John C. Westmoreland, P.E.]

Hello Tim,

Yes - I think Aivaka's advantage is efficiency - could come into play
during things like field day when you charge from solar panels.  The time
saved could make a difference.
Also, for portable applications and back-packing, it could possibly save
time/space too as you have pointed out.  There is a lot out there but there
is also a reason Aivaka is working on this design.

Also, we have the opportunity here to get something custom for our
application possibly.

73's,
John
AJ6BC



On Thu, Oct 24, 2013 at 6:44 PM, Tim ORourke <w4yn at earthlink.net> wrote:

> Have used similar in Miata MX5, there are less expensive Lipo versions.for
> motor cycles and sports cars.
> Fantastic weight savers! I use smaller versions in RC planes and for
> portable ops.
> The RC suppliers have some nice high current chargers to not too many
> bucko's.
> For my portable radio opps I have a nice 4.5 Ah that has lasted for may
> years.
> I also converted my old MFJ 269 antenna analyzer to lipo battery I velcro
> on back.
> Tim W4YN
>
> -----Original Message-----
> From: "John C. Westmoreland, P.E." **
> Sent: Oct 24, 2013 9:19 PM
> To: HPSDR **
> Subject: [hpsdr] Off Topic: Fast Charger for Base Station Batteries -
> Specifically LiFePO4
>
> Hello HPSDR'ers,
>
> This is a little off topic but thought it could interest some on this list.
>
> While over at Aivaka discussing the battery charging system and power
> distribution
> for KHRONOS, I noticed a high power prototype charger on one of the
> benches.  It is about the
> size of a large cigarette box and is capable of charging a battery like
> this:
>
>
> http://www.all-battery.com/Tenergy12.8V20AhLiFePO4RechargeableBattery-31943.aspx
>
> in approx. 1 hr.
>
> If there would be any interest in developing something specifically for
> HPSDR or Ham Radio base station batteries - we could possibly get that into
> the design before it goes into production or maybe even make our own custom
> charging system.
>
> I was wondering if there is any interest and I will bring it up on
> tomorrow's call - but wanted to mention it to the list.  If there are any
> questions or comments I can pass that onto Aivaka.
>
> 73's,
> John
> AJ6BC
>
>
>
> ****
>
>
> Tim O'Rourke
> W4YN at ARRL.Net
> Low Power Amateur Radio Rocks
> Member of Flying Pigs,ARCI,GQRP,RSGB,ARRL Life Member
> NHRA Life Member
>
>
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