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Old 06-14-2009, 01:57 AM
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Default Batteries - EMP Proof?



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Lately I have been making a point to buy Batteries (AA and AAA) in bulk, and I have been wondering if a good EMP attack would fry them as well as everything else electronic...
They don't really have any sensitive circuits inside them, but i'm sure a good blast of EMP would have SOME effect?

I currently have my supply wrapped in tin foil, and insulated with a ziplock bag, this should offer some protection I assume.


Your thoughts?
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Old 06-14-2009, 06:28 AM
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An EMP should have NO affect on batteries. If you have concerns, you don't need to wrap them in tin foil, just store unused batteries in an old microwave. If an item has no electronic circuits, it should not be affected.
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Old 06-14-2009, 06:34 AM
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Sooooo, no need to treat or store them any differently than in the original packaging? Thanks for the tip; Ii've been stocking up when they are on sale at Wally-World, and would hate to see them useless.
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Old 06-14-2009, 12:25 PM
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There is nothing in batteries that would be affected by a pulse.Theres no electronic in them.Just chemicals and metal.
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Old 06-14-2009, 04:16 PM
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Thanks, thats what I thought.



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Old 06-14-2009, 04:46 PM
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Quote:
Originally Posted by DakotaS View Post
Lately I have been making a point to buy Batteries (AA and AAA) in bulk, and I have been wondering if a good EMP attack would fry them as well as everything else electronic...
They don't really have any sensitive circuits inside them, but i'm sure a good blast of EMP would have SOME effect?

I currently have my supply wrapped in tin foil, and insulated with a ziplock bag, this should offer some protection I assume.


Your thoughts?

Sometimes I want to wrap my head in tin foil so the voices will stop.
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Old 06-17-2009, 04:20 PM
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I was thinking about this the other night wondering about car batteries. If an EMP renders some vehicles useless hows about taking the batteries out for your own use?
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Old 06-17-2009, 04:58 PM
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Having worked for a defense contractor on precisely this (well backup supplies for IFF avionics equipment), I can 100% confirm that lead acid/wet cells are 100% resistant to EMP attacks. The plates are large enough to conduct any current induced by the pulse.

AA's etc are not. They fail randomly.

The AA's tend to have zinc powder in them which migrates and shorts the cells out making them useless. This doesn't happen to all cells but around a 40% sample failed immediately after exposure to microwave radiation (from a simple magnetron).

The worst are NiMh/NiCd/LiIon as they tend to use tiered foil construction which is just waiting to go boom.

Tin foil is pretty useless - if the EMP pulse wavelength is intense enough, a current can be generated inside the envelope whch is enough to cause problems.

Stick with wet cells

For a non-scientific approach, chuck one of the batteries in the microwave on high power for 30 seconds and see if it still works.

I can't site any sources unfortunately as this was internal research.
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Old 06-18-2009, 01:09 AM
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Li-on cells also often have pcb's to limit current discharge and/or over discharge protection - now that would be affected right?
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Old 06-18-2009, 03:07 PM
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Quote:
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Li-on cells also often have pcb's to limit current discharge and/or over discharge protection - now that would be affected right?
Yeah - they are charge controller ICs. Basically regulators. Some of them even have Microcontrollers on them (complexity for the sake of complexity). EMP - dead in 2 seconds.
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Old 06-18-2009, 03:08 PM
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In a microwave just to be safe.
Old 06-18-2009, 03:29 PM
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All clear like mud;

So, AAs, Cs, Ds and AAAs have a 40% chance of being fried, right?
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Old 06-19-2009, 09:32 AM
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Can't you just put them in a ziplock bag, wrap that in tin foil, then place them in a shoe box and wrap that in tin foil?
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Old 06-19-2009, 09:33 AM
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Quote:
Originally Posted by FranchiseKid View Post
Can't you just put them in a ziplock bag, wrap that in tin foil, then place them in a shoe box and wrap that in tin foil?
Or buy an old microwave for $5 off craigslist.
Old 06-19-2009, 04:55 PM
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Quote:
So, AAs, Cs, Ds and AAAs have a 40% chance of being fried, right?
Yep. They are all the same construction. Same with PP3's, PP9's etc too.

I'd stick them in an old heavy duty safe - they'd be ok in something like that.
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Old 06-21-2009, 12:18 PM
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How about a shipping container?

Get a 2 TEU one, and load it up with all your supplies. I like 'em - well built, rugged, standardized, all metal, convenient, portable, etc.
Not for all budgets (not mine right now), but ~$1.6K a pop is doable. Heck, you could live in it if needed. Hmmm... How much would it cost to build a decent shed that size anyways? And as sturdy.

http://www.google.com/base/a/5726622...70216308742330

I'm really leaning to portability & transportability. I like it.

EDIT:
Home Sweet Home
http://www.azteccontainer.com/storag...ineroffice.htm

And More:
'06 info

add: there's a big pile of clips on youtube about container homes with more info, and some companies that specialize in making them. (Besides using them for storage).

Last edited by vv111y; 06-21-2009 at 01:28 PM.. Reason: added
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Old 06-21-2009, 03:44 PM
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Shipping containers are possible. I'd bury it though.
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Old 06-21-2009, 08:53 PM
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some batteries have circuits in them to regulate power so they wouldnt be safe. I believe its the recharable cr123a that can have the circuits
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Old 06-24-2009, 07:36 PM
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Quote:
Originally Posted by tentacle View Post

Tin foil is pretty useless - if the EMP pulse wavelength is intense enough, a current can be generated inside the envelope whch is enough to cause problems.
It sounds like you know what you are talking about so I was hoping we could touch on this a bit more since there are a lot of individuals that claim tin foil would be adequate.
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Old 06-24-2009, 07:39 PM
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Quote:
Originally Posted by RamblinMan View Post
Sometimes I want to wrap my head in tin foil so the voices will stop.
Does that work? I need to do something the fu@kin things wont let me sleep
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