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Nov 28, 2011, 08:07 PM
Space Coast USA
hoppy's Avatar
True, but how many of those "sealed" Pb security batteries have blown up?
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Nov 28, 2011, 08:17 PM
Registered User
Never heard of one doing that. Still a lead acid batt. though. I still charge mine outside in the grill.
Nov 29, 2011, 06:01 AM
High Plains Drifter...
BattleDude's Avatar
One of big differences IMHO, is that lead/acids are more durable in the hard case. I believe that most lead/acid malfunctions occurr because of user mistakes while charging or shorting a recently charged batt.
I think the light foil encasement on Lipo's is inadequate, and alot of people just overlook damage and charge them anyway.
I think it is time to think about a better encasement for Lipos, the foil is just not enough protection.
But too strong and it would make a bomb out of it, there has to be an in between?
BD
Nov 29, 2011, 08:42 AM
Things that do fly
Magic k2's Avatar
Quote:
Originally Posted by BattleDude View Post
One of big differences IMHO, is that lead/acids are more durable in the hard case. I believe that most lead/acid malfunctions occurr because of user mistakes while charging or shorting a recently charged batt.
I think the light foil encasement on Lipo's is inadequate, and alot of people just overlook damage and charge them anyway.
I think it is time to think about a better encasement for Lipos, the foil is just not enough protection.
But too strong and it would make a bomb out of it, there has to be an in between?
BD
2 layers of foil
Nov 29, 2011, 05:44 PM
Registered User
mumblety-peg's Avatar
Lead acid batteries? I thought this was the lipo fire thread?
Nov 29, 2011, 11:05 PM
Registered User
Quote:
Originally Posted by BattleDude View Post
One of big differences IMHO, is that lead/acids are more durable in the hard case. I believe that most lead/acid malfunctions occurr because of user mistakes while charging or shorting a recently charged batt.
I think the light foil encasement on Lipo's is inadequate, and alot of people just overlook damage and charge them anyway.
I think it is time to think about a better encasement for Lipos, the foil is just not enough protection.
But too strong and it would make a bomb out of it, there has to be an in between?
BD
Before we get off the diversion of lead-acid batts, I jumped an Olds 442 almost 30 years ago. I didn't know to attach negative to the chassis and when I connected a large chunk blew out and spewed acid all over the engine compartment. Nasty and a good lesson.
Nov 30, 2011, 08:50 AM
High Plains Drifter...
BattleDude's Avatar
Quote:
Originally Posted by mumblety-peg View Post
Lead acid batteries? I thought this was the lipo fire thread?
It is the Lipo Fire Thread, so can we only mention Lipo fires and nothing else?
Boys, if you don't have Lipo fire story then don't come around, I guess.
Nov 30, 2011, 02:04 PM
like a rock!
gravityKills's Avatar
and a honorary mention for tantalum capacitors... capacity-wise they are a disappointment, but the explosions aren't too bad
Dec 02, 2011, 11:45 AM
Registered User

GM's Lipos Catch Fire (big surprise...)


"The Chevrolet Volt battery cell is encased in a polymer-coated
aluminum package"

Government Motors (GM) is apparently ignorant of many years experience with LiPos here on RC Groups and incorporates 400 pounds them in an automobile.

http://media.gm.com/content/dam/Medi...attery_101.pdf
Dec 03, 2011, 06:57 AM
Space Coast USA
hoppy's Avatar
At least they are using LiMn chemistry which is much safer than the LiCo chemistry we use for the most part.
Dec 03, 2011, 10:47 AM
Registered User
we need a nice jump in rc battery technology......more powerful than a LiPo with the safety of NiMh. Who do I write about that?
Dec 03, 2011, 03:15 PM
Things that do fly
Magic k2's Avatar
Quote:
Originally Posted by hidaven View Post
we need a nice jump in rc battery technology......more powerful than a LiPo with the safety of NiMh. Who do I write about that?
You forgot cheap
Dec 03, 2011, 03:34 PM
The Sweet Aroma of Fuel
electricrc68's Avatar
Quote:
Originally Posted by hidaven View Post
we need a nice jump in rc battery technology......more powerful than a LiPo with the safety of NiMh. Who do I write about that?
your local nuclear power plant.

Uranium batteries anyone? you get a free lead suit....

JK.

i don't think theres any other two elements that can be put together into a battery compound and have the safety of a nimh and at the same time be more powerful than lipos.
Dec 03, 2011, 03:50 PM
Things that do fly
Magic k2's Avatar
Quote:
Originally Posted by electricrc68 View Post
your local nuclear power plant.

Uranium batteries anyone? you get a free lead suit....

JK.

i don't think theres any other two elements that can be put together into a battery compound and have the safety of a nimh and at the same time be more powerful than lipos.
Did you guys see the old plane the russians made with nuclear power ? they couldnt get it off the ground with the protective layers around the reactor so they made the crew fly it without any protection what so ever ,,,,well as you can guess,they all died orible deaths,,,f#####g idiots ,,,,,didnt need to carry any weapons because if it was shot down over enemy ground it would just blow up and spread nuclear waste and fallout every where
Dec 03, 2011, 04:09 PM
The Sweet Aroma of Fuel
electricrc68's Avatar
Quote:
Originally Posted by Magic k2 View Post
Did you guys see the old plane the russians made with nuclear power ? they couldnt get it off the ground with the protective layers around the reactor so they made the crew fly it without any protection what so ever ,,,,well as you can guess,they all died orible deaths,,,f#####g idiots ,,,,,didnt need to carry any weapons because if it was shot down over enemy ground it would just blow up and spread nuclear waste and fallout every where
DANG!!! why would they even try to build a nuclear power plane in the first place?!?!?!!?!?!?


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