[Elecraft] Being cautious around Li-Ion Batteries

[Doug Person via Elecraft]

Any chemists on-board? Curious as to what the exact chemical process is 
that causes such a powerful state change. Hard to believe that something 
so dangerous and volatile is inside so many things we carry around in 
our pockets.

I guess my mistake was getting a pack that did not have any sort of 
protection circuit in it.  I don't recommend my personal method of 
discovering the need for them!  I was assuming the charger knew what it 
was doing.  Never will I trust that thing again.

73, Doug -- K0DXV

On 12/10/2014 6:44 PM, Jim Brown wrote:
> On Wed,12/10/2014 3:38 PM, Doug Person via Elecraft wrote:
>> Just a quick note to affirm the need for caution around Lithium-Ion 
>> battery packs.
>
> All Li-Ion packs are not created equal. Charging rates depend upon 
> capacity, and proper Li-Ion packs have built-in protection modules. 
> Study batteryspace.com to get a handle how these things are built.  
> This company is "the American partner" of a small battery mfr in 
> China. The Chinese company manufactures the cells, the American 
> company puts them in packs with protection circuitry and suitable 
> connectors, and does the marketing.
>
> My neighbor, W6GJB, bought one of their bigger LiFe 12V packs. Looks 
> quite solid.
>
> 73, Jim K9YC
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