Lithium batteries

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Matt Flynn
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Lithium batteries

Post by Matt Flynn »

Lithium batteries ignite ... http://www.news.com.au/national/norther ... 05ff09987b

These batteries are in everything, no doubt packed inside suitcases in planes.

And what are the guidelines mentioned in the story? Can you post them, or not?


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dannett
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Re: Lithium batteries

Post by dannett »

I believe that there is a limit to the kW capacity of which can be shipped by air. This is why razors and stuff are okay. Some of the newer battery tools like the dewalt 60V series are now exceeding the limits, although one of them has some trickery in the circuitry that makes it 2 cells and therefore "safe". A drone battery by design would generally not be close to the size restriction although it may need to be declared and of course, carriers like AustPosts may have other restrictions in place.

However, there are two main types of lithium batteries, on that looks like a pop-tart and the other more like an AA battery cell. The pop-tart style has a larger surface area which enables them to deliver more current and these can be prone to damage. The AA type, typically an 18650 cell are considered far more stable. The 18650 cells are used in large battery walls and cars, think Tesla, Prius etc.

The drone, is more likely to have the pop-tart style and this is considered the risky of the two which is prone to failure and fire. This is a similar type that is within your Samsung Galaxy and iPhone.
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