[Elecraft] KX3 Ordered - Battery/Power Questions

[Todd Atkins]

Greetings Elecraft group, Todd Atkins K4MSW here.  I've been QRT for some
time but recently ordered the KX3 kit loaded up with all options and about
to jump back in the hobby again.  I am needing to place an order for some
power options and wanted to run this by you guys, first.  I did attempt to
search the reflector for battery info but a lot of it looks old/outdated
and I'm getting older too, so I need some guidance/advice.

1.  As for internal batteries, seems that a good deal is the Sanyo Eneloop
XX 2500mAh LSDs.  I can get 8 of these on Amazon for $30.24 shipped.  Are
these adequate?  Also, the internal battery charger on the KX3 will charge
these just fine (probably overnight) so I don't need a separate charger,
correct?

2.  I'd like to have a power cord/wall cord just in case I'm outta
batteries or need to operate at home.  I want the full 10-12 watts out of
the rig, so I realize I need a proper 13v+ clean supply.  I found one on
Allelectronics for $16.00

http://www.allelectronics.com/make-a-store/item/PS-154/15VDC-4A-SWITCHING-POWER-SUPPLY/1.html

and the specs are: Model # SPU-45. Input: 100-240V 50/60Hz, 1.2A Max.
Output: 15Vdc, 4A. 6' cord with right-angle 2.1mm coax power plug, center
positive. Would this one be ok?

3.  I do want to be able to get the 10-12W portable as well, so I'm hunting
for reasonably priced LIPO, LiFePO4, or A123 but I'd rather not have to
mess with a voltage limiter, etc.  I've looked at the A123's sold on the
Buddipole site but they are a bit expensive.  The 4S1P and the Cellpro
Multi4 Charger combined are about $175.  Can anyone comment on this brand?
I know Buddipole puts APP connectors on the battery and charger which is
nice.  Any other more cost effective options you guys have used
successfully?

4.  Anyone have link for an appropriate power cable that plugs into a car
cigarette lighter?  Would it be safe to go straight into the KX3 from the
cigarette lighter, or maybe fuse is needed?

Many thanks in advance guys.  Sorry if I've asked for information already
covered.  Links and references to previous threads, sources, and articles
would be great, and of course your replies/advice are appreciated.

73 de Todd, K4MSW