RE: The Lipo Burn - Pictures! Another WARNING  
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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> RE: The Lipo Burn - Pictures! Another WARNING
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RE: The Lipo Burn - Pictures! Another WARNING - 12/27/2005 8:39:27 PM   
mikekomm



Posts: 166
Joined: 8/26/2002
From: Northridge, CA, USA
Status: offline 		For what it worth, I always put a rubber band around batteries after I charge tthem. I take the rubber band off when I put the battery in the plane. Helps me to remember which ones are charged.


Mike
www.CommonSenseRC.com

(in reply to TManiaci)
       Post #: 26

RE: The Lipo Burn - Pictures! Another WARNING - 12/27/2005 8:42:10 PM   
exeter_acres



Posts: 6076
Joined: 9/22/2004
From: Johns Creek, GA, USA
Status: offline 		Even after my smart alec comment

I'm truly glad that noone was hurt and it worked out as OK as can be

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I would like to earn your vote for IMAC Southeast Regional Director

(in reply to mikekomm)
       Post #: 27

RE: The Lipo Burn - Pictures! Another WARNING - 12/31/2005 12:36:00 AM   
G.W.


 

Posts: 268
Joined: 7/18/2004
From: cedar falls, IA, USA
Status: online 		A fire extinguisher wouldn't do anything but keep the fire from spreading. The batteries supply themselves with oxygen, so if you even put them in a completely sealed container, and it held up to the heat, the battery would still burn even if there was no oxygen in the container. Does that make sense? Your lucky you got it outside!

(in reply to exeter_acres)
       Post #: 28

RE: The Lipo Burn - Pictures! Another WARNING - 12/31/2005 2:44:04 AM   
mikekomm



Posts: 166
Joined: 8/26/2002
From: Northridge, CA, USA
Status: offline 		I've heard many people say that bucket of sand will extinguish the fire.

(in reply to G.W.)
       Post #: 29

RE: The Lipo Burn - Pictures! Another WARNING - 12/31/2005 3:46:49 AM   
blikseme300


 

Posts: 680
Joined: 6/1/2004
From: Mission, TX, USA
Status: offline 		The main lesson from all this is: don't EVER leave charging packs unattended! Automatic scares me when it comes to chargers - it wil automatically destroy stuff.

Safe Flying!

(in reply to TManiaci)
       Post #: 30

RE: The Lipo Burn - Pictures! Another WARNING - 1/4/2006 4:10:41 AM   
TManiaci



Posts: 1489
Joined: 10/7/2004
From: Temecula, CA, USA
Status: offline 		For those that were following this thread, I found the instruction book on the Astro Flight Model 109 Charger.

This thing is scary... it says... paraphrasing a bit...

"During phase one (of three) the charger applies a full charge regardless of the battery voltage, as set by the dial, to the pack for three (3) minutes. During this time, the cell count will adjust to the proper number of cells..."

and "... If the battery is already fully charged, it "may" count too many cells, and begin to overcharge.... STOP AT ONCE!!! ..."

and "... It acts like a dumb charger during this first phase. This is necessary in order to be able to charge packs that have been discharged to a very low voltage."

That explains how it got to a 4-Cell chage rate, as the display indicated afterward.

You can bet I won't take my eyes off this charger again during that initial 3 minute phase...

_____________________________

TMan

(in reply to TManiaci)
       Post #: 31

RE: The Lipo Burn - Pictures! Another WARNING - 1/4/2006 1:49:03 PM   
guver


 

Posts: 8974
Joined: 3/7/2003
From: LaGrange, OH, USA
Status: offline 		that seems to be the ticket, babysit it for the first 3 mnutes.

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you hear that silence?

(in reply to TManiaci)
       Post #: 32

RE: The Lipo Burn - Pictures! Another WARNING - 1/4/2006 5:44:53 PM   
DHG


 

Posts: 896
Joined: 4/24/2002
From: Arvada, CO, USA
Status: offline 		CORRECTION! Earlier in this thread I stated:

quote:

ORIGINAL: DHG

I'm glad now that I got a Triton, which only goes up to 3 cells (11.1V) and nothing but 3-cell packs.



The Triton actually goes up to 4 cells. I set it at 3 (11.1V) the first time and never changed it. This isn't the same as a "big, dumb, toggle switch with a lockout" as I suggested, but it's close. You have to deliberately go into the menu and change the setting in order to get a different cell count.

(in reply to DHG)
       Post #: 33

RE: The Lipo Burn - Pictures! Another WARNING - 1/4/2006 6:44:00 PM   
PlaneKrazee



Posts: 3541
Joined: 5/15/2002
From: Westerly, RI, USA
Status: offline 		A solution for auto sensing cell count is using a charger that has a input plug set up for taps and the only way it can charge is thru each tap. If there are only 3 taps the charger only sees three cells. Both FMA and Common Sense use this setup. It's fool proof.

_____________________________

KB1DTB
AMA11123

(in reply to DHG)
       Post #: 34

RE: The Lipo Burn - Pictures! Another WARNING - 1/13/2006 8:20:59 PM   
byi957


 

Posts: 13
Joined: 10/27/2005
From: Oakley, CA, USA
Status: offline 		There is a ebay seller, selling esky honeybee cp2's and what he is shipping is a lithium ion charger, to charge a lithium polymer pack. I found out that another buyer, had his pack blow up. I since ordered a charger for lithium polymer. Question..is there that much difference between a lithium ion and lithium polymer pack?

(in reply to TManiaci)
       Post #: 35

RE: The Lipo Burn - Pictures! Another WARNING - 1/13/2006 8:32:04 PM   
TManiaci



Posts: 1489
Joined: 10/7/2004
From: Temecula, CA, USA
Status: offline 		I have the Triton Charger. It does not differintiate between Lio-ion and Lipoly. The lit implies they are the same, but is not specific. Everywhere they discuss it, they say "Lithuim-Ion/Lithium-Polymer" without differintiation. They must be so similar it doesn't matter.

There is an article HERE that says Lipoly's are just an advanced form of Li-ion batteries...

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TMan

(in reply to byi957)
       Post #: 36

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