Follow up:
I bought a Tekkeon MP3450 for 109 bucks at amazon.When I look at what ive spent on batteries and what use ive gotten previously out ouf other dvd batterys Ive owned for my other stuff I concur:
there is never a better investment then a good re-chargable that will do every thing from run your laptop for 4 hrs and power your rig for an easy 15 hrs. it's priceless!It fits snug in its pleather case that it comes with just fine under the 661 and light weight for the size.best thing yet,wanna chare your cell phone? yeah,plug it right in!
runs from 5-19V and its really killer.
fir giggles im going to see how long it will run my UA5... >:5
thanks for all the tips folks
+T