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<body class='hmmessage'>Packs come off charger and get a rubber band over them. When the go in the plane rubber band comes off. Same concept less bread.<BR><BR><BR><BR>
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> From: vanputte@cox.net<BR>> Date: Fri, 29 Aug 2008 11:51:25 -0500<BR>> To: nsrca-discussion@lists.nsrca.org<BR>> Subject: Re: [NSRCA-discussion] FW: ESVs for flight pack lipos?<BR>> <BR>> A friend was putting Lipos into his airplane and I noticed he took <BR>> one of those plastic tags, like are used to seal of the ends of the <BR>> bags covering loaves of bread, off the positive lead of the battery. <BR>> I asked him what that was all about. He explained that he put the <BR>> tags on the battery leads after he'd charged the batteries. If he <BR>> didn't find a plastic tag, the battery wasn't charged. That way he <BR>> only needs one ammo can to keep Lipos in.<BR>> <BR>> Ron VP<BR>> <BR>> On Aug 29, 2008, at 11:33 AM, John Pavlick wrote:<BR>> <BR>> > I use a really simple method to avoid this problem. I have 2 cases <BR>> > for my batteries. One is the "charged and ready" case and the other <BR>> > is the "I just flew these" case. Battereis come OUT of the charged <BR>> > and ready case and go INTO the plane. When you land, the batteries <BR>> > come OUT of the plane and go INTO the other case. The logic for <BR>> > charging is opposite that of flying. As long as you don't put the <BR>> > batteries in the wrong case, it works. You have to develop a habit <BR>> > but it's not too difficult. Works for me and it costs nothing.<BR>> ><BR>> > John Pavlick<BR>> ><BR>> > --- On Fri, 8/29/08, James Oddino <joddino@socal.rr.com> wrote:<BR>> > From: James Oddino <joddino@socal.rr.com><BR>> > Subject: Re: [NSRCA-discussion] FW: ESVs for flight pack lipos?<BR>> > To: "General pattern discussion" <nsrca-discussion@lists.nsrca.org><BR>> > Date: Friday, August 29, 2008, 4:22 PM<BR>> ><BR>> > Hi Gordon,<BR>> ><BR>> > I suspected that. I was thinking of building a gadget that lit up <BR>> > an LED if the voltage was over 41 or so. It could be very <BR>> > inexpensive and could save a set of expensive batteries. I have <BR>> > seen more than one guy take off with batteries they thought they <BR>> > had charged. They found out only when the voltage had dropped too <BR>> > low. I almost did it once but I had an Eagle Tree TM system and <BR>> > checked the voltage before I took off. I don't always use the ET <BR>> > so it would be nice to have another painless way to know the packs <BR>> > are charged.<BR>> ><BR>> > Jim<BR>> ><BR>> ><BR>> > On Aug 29, 2008, at 6:16 AM, Gordon Anderson wrote:<BR>> ><BR>> >> Jim,<BR>> >><BR>> >> The maestro will not accept a 42 volt input. It was designed as a <BR>> >> flight pack testing system and includes a programmable battery <BR>> >> load. It will calculate and display the packs internal resistance <BR>> >> as well.<BR>> >><BR>> >> --Gordon<BR>> >><BR>> >> From: nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca- <BR>> >> discussion-bounces@lists.nsrca.org] On Behalf Of James Oddino<BR>> >> Sent: Thursday, August 28, 2008 4:18 PM<BR>> >> To: General pattern discussion<BR>> >> Subject: Re: [NSRCA-discussion] FW: ESVs for flight pack lipos?<BR>> >><BR>> >> What is the voltage range? I'd like to have a unit that would <BR>> >> stay in the plane and tell me that my 42 volt battery is charged <BR>> >> when I plug it in.<BR>> >><BR>> >> Jim<BR>> >><BR>> >><BR>> >> On Aug 28, 2008, at 3:42 PM, Derek Koopowitz wrote:<BR>> >><BR>> >>> I bought mine from Gordon Anderson...<BR>> >>><BR>> >>> http://www.mstar2k.com/<BR>> >>><BR>> >>> Look for the Maestro on his page.<BR>> >>><BR>> >>> From: nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca- <BR>> >>> discussion-bounces@lists.nsrca.org] On Behalf Of Richard Strickland<BR>> >>> Sent: Thursday, August 28, 2008 11:36 AM<BR>> >>> To: NSRCA DISCUSSION<BR>> >>> Subject: [NSRCA-discussion] FW: ESVs for flight pack lipos?<BR>> >>><BR>> >>><BR>> >>> I'm switching some of my stuff to 2 cell lipos into a regulator <BR>> >>> (learned the hard way that you separate the regulator on the <BR>> >>> OTHER side of the switch from the battery--but that's another <BR>> >>> story).<BR>> >>> The question(s): What is a good, relatively small ESV that has a <BR>> >>> load to check the lipos? What voltage do you let them get down to <BR>> >>> before no go?<BR>> >>> My 30 year old SO (Ye Olde ESV) ranges just miss that middle <BR>> >>> ground. I've got a voltmeter--but it's not loaded. On a 1200 pack <BR>> >>> (still lighter than 4 nicads WITH reg.) on four flights, the drop <BR>> >>> was from 8.4 down to 8.25V. I'm going to a 780 on another <BR>> >>> airplane and my understanding guys are getting up to 7-8 flights <BR>> >>> on that size pack. But how do you check them?<BR>> >>><BR>> >>> Thanks,<BR>> >>><BR>> >>> Richard<BR>> >>><BR>> >>> See what people are saying about Windows Live. Check out featured <BR>> >>> posts. Check It Out!<BR>> >>> Talk to your Yahoo! Friends via Windows Live Messenger. Find Out <BR>> >>> How _______________________________________________<BR>> >>> NSRCA-discussion mailing list<BR>> >>> NSRCA-discussion@lists.nsrca.org<BR>> >>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>> >><BR>> >> _______________________________________________<BR>> >> NSRCA-discussion mailing list<BR>> >> NSRCA-discussion@lists.nsrca.org<BR>> >> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>> ><BR>> > _______________________________________________ NSRCA-discussion <BR>> > mailing list NSRCA-discussion@lists.nsrca.org http:// <BR>> > lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>> > _______________________________________________<BR>> > NSRCA-discussion mailing list<BR>> > NSRCA-discussion@lists.nsrca.org<BR>> > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>> <BR>> _______________________________________________<BR>> NSRCA-discussion mailing list<BR>> NSRCA-discussion@lists.nsrca.org<BR>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR><br /><hr />Talk to your Yahoo! Friends via Windows Live Messenger. <a href='http://www.windowslive.com/explore/messenger?ocid=TXT_TAGLM_WL_messenger_yahoo_082008' target='_new'>Find Out How</a></body>
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