Author Topic: EEVblog #1350 - Fake Energizer Batteries?  (Read 6502 times)

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Offline EEVblogTopic starter

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EEVblog #1350 - Fake Energizer Batteries?
« on: November 24, 2020, 10:12:09 pm »
Were the Made in USA Energizer Max Plus AAA batteries in the previous leaking battery video FAKE?
Dave found an identical genuine one and inspects and tears them down.

 

Offline coppice

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Re: EEVblog #1350 - Fake Energizer Batteries?
« Reply #1 on: November 24, 2020, 10:30:49 pm »
Was that package sent by sea? I've had a number of things shipped by sea, with pretty new batteries in them, which leaked badly before they arrived. I suspect that maybe salty air, or some other environmental factor about being on a ship, can trigger leaking.
 

Offline james_s

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Re: EEVblog #1350 - Fake Energizer Batteries?
« Reply #2 on: November 24, 2020, 10:43:20 pm »
Was that package sent by sea? I've had a number of things shipped by sea, with pretty new batteries in them, which leaked badly before they arrived. I suspect that maybe salty air, or some other environmental factor about being on a ship, can trigger leaking.

Large temperature swings perhaps? I would imagine a cargo container on the top of the stack baking in the tropical sun would get ferociously hot inside, especially if it's painted a dark color. Then at night the uninsulated containers in the ocean breeze could get quite chilly.
 

Offline SilverSolder

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Re: EEVblog #1350 - Fake Energizer Batteries?
« Reply #3 on: November 24, 2020, 10:52:25 pm »
Was that package sent by sea? I've had a number of things shipped by sea, with pretty new batteries in them, which leaked badly before they arrived. I suspect that maybe salty air, or some other environmental factor about being on a ship, can trigger leaking.

They leak because they are poorly made - isn't that the long and the short of it?
 

Offline SilverSolder

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Re: EEVblog #1350 - Fake Energizer Batteries?
« Reply #4 on: November 24, 2020, 10:52:57 pm »
Was that package sent by sea? I've had a number of things shipped by sea, with pretty new batteries in them, which leaked badly before they arrived. I suspect that maybe salty air, or some other environmental factor about being on a ship, can trigger leaking.

Large temperature swings perhaps? I would imagine a cargo container on the top of the stack baking in the tropical sun would get ferociously hot inside, especially if it's painted a dark color. Then at night the uninsulated containers in the ocean breeze could get quite chilly.

That kind of thing could be tested in a lab...
 

Offline EEVblogTopic starter

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Re: EEVblog #1350 - Fake Energizer Batteries?
« Reply #5 on: November 25, 2020, 12:42:30 am »
Was that package sent by sea?

Nope, local state.
 

Offline dcac

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Re: EEVblog #1350 - Fake Energizer Batteries?
« Reply #6 on: November 26, 2020, 10:54:28 pm »
I actually never noticed those three went hole at the minus pole as they’re usually somewhat covered by the wrapping label. And when a battery has leaked you're really not that keen on handling them.

I just looked at two several years old completely empty AAA cells - but that has not leaked. The holes are clearly there and looks open from the outside - you can i.e. stick a needle into them. So the went mechanism is not like on electrolytic caps where the top of the casing is designed to rupture - but on batteries there must instead be some kind of seal behind the holes - and it’s when that seal fails or opens prematurely that causes battery incontinence.
« Last Edit: December 06, 2020, 02:03:27 pm by dcac »
 


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