[NSRCA-discussion] FW: FW: ESVs for flight pack lipos?

[Richard Strickland]

John's ethics wouldn't let him send this to the list--but this is the kind of stuff that is helpful--probably would have saved a 40.00 battery--and maybe my house--since the reg was plugged up 
while Pam and I participated in a seminar for a few days.   One of those deals where I sort of pushed to get it in the air b/4 leaving town, flew it the nite b/4, put it up--and didn't think about it until I got back with time to run out to the field.  Battery had puffed and was 'loose'--I had no clue as to why--except I convinced myself I MUST have left it on--or hit the switch when I put it up.  Uh, no...
 
RS




Date: Thu, 28 Aug 2008 13:27:56 -0700From: jpavlick at idseng.comSubject: Re: [NSRCA-discussion] FW: ESVs for flight pack lipos?To: pamrich47 at hotmail.comCC: ed_alt at hotmail.com




Rich,
 I didn't want to post this to the list because I don't want to sound like I'm promoting my own company publicly but...
 
You can leave a Tech Aero regulator connected directly to the battery for a LONG time before the battery discharges to an unsafe level. Ed and I designed them with a very low quiescent current draw just for that reason. We also have a fail-safe switch arrangement on our regulators. If the switch fails, the regulator (and your airplane) stays ON. If you put a mechanical switch in-line between the battery and the regulator, you could experience loss of power if the switch fails (and they do).
 
Here's a link to our site in case you're interested:
http://www.tech-aero.net
 
Let me know if you have any questions.
 
John Pavlick
 
BTW - I use the Radio South meter too. It's not complicated to build one of these yourself but why bother? The Radio south meter is reasonable and it works every time.
 
 
--- On Thu, 8/28/08, Richard Strickland <pamrich47 at hotmail.com> wrote:
From: Richard Strickland <pamrich47 at hotmail.com>Subject: Re: [NSRCA-discussion] FW: ESVs for flight pack lipos?To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>Date: Thursday, August 28, 2008, 7:48 PM


Bought the set-up from Brian(Tanic).  After I took my completely shot 1500s back to him after they wouldn't hold a charge--he asked " You DID separate the regulator from the battery--didn't you--like I told you?!!!"  "No", I said sheepishly....  The regs evidently draw a tiny amount when hooked up.I'm going to call Tony--that's exactly what I was looking for! Thanks, Richard> Date: Thu, 28 Aug 2008 11:33:16 -0800> From: simestd at netexpress.com> To: nsrca-discussion at lists.nsrca.org> Subject: Re: [NSRCA-discussion] FW: ESVs for flight pack lipos?> > On Thu, 28 Aug 2008 13:35:33 -0500> Richard Strickland <pamrich47 at hotmail.com> wrote:> > > I'm switching some of my stuff to 2 cell lipos into a regulator> > (learned the hard way that you separate the regulator on the OTHER> > side of the switch from the battery--but that's another story).> > That's good (obvious in hindsight) info that lots of folks might not> think of, thanks for sharing!> > > question(s): What is a good, relatively small ESV that has a load to> > check the lipos? What voltage do you let them get down to before no> > I've had a Radio South digital ESV for years and I really like it. It's> small, zero maintenance (no batteries) and dead simple to operate.> > http://www.radiosouthrc.com/closeup.asp?cid=17&pid=458&offset=0> > or> > http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXKLF5&P=0> > > Tom> > ======================================================================> "Z-80 system stack overflow. Shut 'er down Scotty, the system's> sucking mud" - Error message on TRS 80 Model-16B> > Tom Simes simestd at netexpress.com > ======================================================================> _______________________________________________> NSRCA-discussion mailing list> NSRCA-discussion at lists.nsrca.org> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion

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