On Fri, 29 Aug 2014 13:59:38 -0500, dpb wrote:

On 08/29/2014 1:13 PM, Paul Drahn wrote:
...

Are you referring to saws powered from your 12 volt car battery or
something else?

Something else...Oregon's entry, there are several others, some with
twice the AH battery capacity and up to 16" bars...

http://oregoncordless.com/product/chain-saw-cs250/

No experience, BUT Lithium Ion is a "good thing". As Nestor pointed
out in another thread and I agree, the Lithium Ion has a circuit to
prevent deep discharge of the battery - prevents damage.

2¢