[NSRCA-discussion] Lipo Sacks

[JShulman]

Wow Jeremy, I didn't think you could top Toledo.... I was wrong...LOL. Just
havin fun with ya ;) If you had said your yard caught on fire then you
woulda had a double triple crown... ouch! I might try and top you next year
if there's a new arena.

Regards,
Jason
www.jasonshulman.com
www.shulmanaviation.com
www.composite-arf.com

  -----Original Message-----
  From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of JEREMY CHINN
  Sent: Thursday, April 10, 2008 12:17 PM
  To: NSRCA Mailing List
  Subject: Re: [NSRCA-discussion] Lipo Sacks


  I'll admit fault..... My indoor batts use mini deans. One day while
plugging up batts on the chargers while talking on the phone, I managed to
plug two batts together......... as they puffed, I ran for the garage door
and threw them under it as it opened. Once the door was fully opened, I saw
that the batteries skidded to a stop under my new pickuptruck....... Of
course I then ran to grab them and throw them into the yard.........

  It only takes one moment of carelessness.....




----------------------------------------------------------------------------
    From: cjm767driver at hotmail.com
    To: chad at f3acanada.org; nsrca-discussion at lists.nsrca.org
    Date: Thu, 10 Apr 2008 10:54:28 -0500
    Subject: Re: [NSRCA-discussion] Lipo Sacks

    Walter,
    I'm with Chad on this.
    The key is to have good equipment that will monitor the batteries and
automatically shut down if there is a problem.  Too many sensational stories
on the internet about some battery fire etc have a lot of unknowns in their
stories.  Have you ever seen one where they said "it was my fault,  I did
XYZ that I should not have done"?  No, everyone says, wow it just blew up -
then the marketing guys come out with a safety product to fix a problem that
probably never would exist with good equipment and charging techniques.  Why
don't we have bunkers and sacks for cans of gasoline?  Is there not a chance
that it could explode too?  We know that if we goof around carelessly with
gasoline, it will go boom - so we are careful.  Same with lipos.
    I could be wrong here, but I too have hundreds of charges on big lipos
and have never had any issue. The key is just be careful and check your
charge settings and use good equipment with safety cut offs.  Can it hurt to
use these bunkers and sacks, of course not.  They give you another layer of
protection but I really don't think they are that necessary.
    Sorry, but I really think the hype is over done with lipos.

    Chris

    PS - no more coffee for me today - I better go fly and relax some


    Chad Northeast wrote:
      Walter

      The only safe way to charge lipos is to ensure you have a safe charger
that monitors cell voltages like the TP 1010, or the Schulze's.  Or use a
balancer like the Flightpower etc that tie into the charge line.  This way
if anything goes screwy with the charge they shut it down, lipos don't light
on fire for no reason, its usually because you overcharged them and they got
hot and burst.  Or you are charging a damaged pack, and usually common sense
will tell you that is not a good idea.

      ALWAYS babysit the charge, forget bunkers, sacks etc. if you monitor
the charge there is no need for these because you will always be aware of
the state of the packs as they are charging.  In my opinion using sacks etc.
is a band aid for unsafe charging practices.  I am sure someone will flame
me for this but I have been charging these big packs for 4 years, I must
have 1000's of charges behind me and "touch wood" I have never had a single
issue, but I watch my chargers.  In the early days before we had all this
fancy monitoring stuff I had to pull packs off chargers because things were
going bad.

      Chad

      ----- Original Message -----
      From: Walter Nasse <wwnasse at figment.ca>
      Date: Wednesday, April 9, 2008 9:09 pm
      Subject: [NSRCA-discussion] Lipo Sacks
      To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>

      > BlankDoes anyone use the Lipo Sack for charging and transporting
      > batterypacks?
      >
      > What other alternatives are there?  Ammo Boxes? Flour Tins?
      >
      > Thanks,
      >
      > Walter
      >
      > No virus found in this outgoing message.
      > Checked by AVG.
      > Version: 7.5.519 / Virus Database: 269.22.10/1367 - Release
      > Date: 4/9/2008
      > 7:10 AM
      >
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