Today they tell us we're looking at 3rd quarter 2014 release for small lithium ion battery. These are the previous promised release dates: December 2012, March 2013, August 2013, December 2013, June 2014. Oh, and Stryker got their large and small lithium ion battery in late 2011. Funny how 3 years ago we were going to be the first one to market with Lithium Ion..........
I have been using static electricity to get extra charge. Rub a ballon on the scrub tech's head while they are holding the power. The positive reaction creates a charge that rivals a lithium battery.