Anybody have a good source for a deal on an IC40? Mine appears to be dead, shows 80% life, but the service cell light is blinking. I did the acid cleaning but that did not seem to do anything. The unit is 6 years old, so unless anyone knows any tricks, Im hunting for a replacement. Ebay has the older/original model for about $1100 and mine always worked great, so upgrading to the new model doesn't really solve anything for me and Id rather save the $$.