I agree, the Micro-Brute is truely a smart charger. It is great and can be ordered through BikeWorld.com which has an outstanding web-site with tons of NiteRider parts for $42. No need to buy an expensive Digital system for a charger. They have the Micro-Brute for the older round connectors PN 6206 and new style PN= 6456. You can also get a 12" adapter cord that you can plug the new style SurLok connectors on the new batteries into the old style round coaxial size "N" connectors for use on the old heads.
The new Digital 15w is not bright enough for me while going down some of the hills around here at 30++ mph. Thanks for the input, any other info would sure be appreaciated.
We will talk about how to save big time (1/2$) on NiMH batteries on another thread soon. The Fife