<div dir="ltr">Hello Tim,<div><br></div><div>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.</div>
<div>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.</div><div><br></div>
<div>Also, we have the opportunity here to get something custom for our application possibly.</div><div><br></div><div>73's,</div><div>John</div><div>AJ6BC</div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Thu, Oct 24, 2013 at 6:44 PM, Tim ORourke <span dir="ltr"><<a href="mailto:w4yn@earthlink.net" target="_blank">w4yn@earthlink.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><font color="#000000"><font><font face="arial,sans-serif">Have used similar in Miata MX5, there are less expensive Lipo versions.for motor cycles and sports cars.</font></font></font><div><font color="#000000"><font><font face="arial,sans-serif">Fantastic weight savers! I use smaller versions in RC planes and for portable ops.</font></font></font></div>
<div><font color="#000000"><font><font face="arial,sans-serif">The RC suppliers have some nice high current chargers to not too many bucko's.</font></font></font></div><div><font color="#000000"><font><font face="arial,sans-serif">For my portable radio opps I have a nice 4.5 Ah that has lasted for may years. </font></font></font></div>
<div><font color="#000000"><font><font face="arial,sans-serif">I also converted my old MFJ 269 antenna analyzer to lipo battery I velcro on back.</font></font></font></div><div><font color="#000000"><font><font face="arial,sans-serif">Tim W4YN<br>
</font></font></font><div><div class="h5"><blockquote style="PADDING-LEFT:5px;MARGIN-LEFT:0px;BORDER-LEFT:#0000ff 2px solid">-----Original Message-----
<br>From: "John C. Westmoreland, P.E." <u></u>
<br>Sent: Oct 24, 2013 9:19 PM
<br>To: HPSDR <u></u>
<br>Subject: [hpsdr] Off Topic: Fast Charger for Base Station Batteries - Specifically LiFePO4
<br><br><div dir="ltr">Hello HPSDR'ers,<div><br></div><div>This is a little off topic but thought it could interest some on this list.</div><div><br></div><div>While over at Aivaka discussing the battery charging system and power distribution</div>
<div>for KHRONOS, I noticed a high power prototype charger on one of the benches. It is about the </div><div>size of a large cigarette box and is capable of charging a battery like this:</div><div><br></div><div><a href="http://www.all-battery.com/Tenergy12.8V20AhLiFePO4RechargeableBattery-31943.aspx" target="_blank">http://www.all-battery.com/Tenergy12.8V20AhLiFePO4RechargeableBattery-31943.aspx</a><br>
</div><div><br></div><div>in approx. 1 hr. </div><div><br></div><div>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.</div>
<div><br></div><div>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.</div>
<div><br></div><div>73's,</div><div>John</div><div>AJ6BC</div><div><br></div><div><br></div><div><br></div></div>
<u></u><u></u></blockquote></div></div></div></div><pre>
Tim O'Rourke
W4YN@ARRL.Net
Low Power Amateur Radio Rocks
Member of Flying Pigs,ARCI,GQRP,RSGB,ARRL Life Member
NHRA Life Member</pre>
</blockquote></div><br></div>