Hey David, I know what you mean about satisfaction with the batteries. I am in Inver Grove Heights, MN and we always end up with more snow than is forecast. My two year old Ego has been handling it all without complaint. I use two 7.5Ah batteries and today was the first time the machine gave me the red light. I had finished the double wide driveway and was now burying the machine in snow drifts thrown up by the city plows. Just chewing away a little at a time for well over an hour. Even with the light on I was able to finish up with no obvious loss of power. Great batteries for a great snow blower.
I admit I do abuse the beast a bit. It complains some when throwing ice and once I ran into a larger chunk of ice and the machine stalled. That was a little freaky. All the indicator lights were flashing tell me in effect to back off! I released the bail, backed out a little and fired it up again. Continued on our merry way.
That ice jam was two storms ago and it hasn't seemed to effect its efficiency.
Going forward though, I am wondering about lubrication of the cables, maintenance of the belt, the auger rubber and such. I will look through the manual but Ego, if you have some maintenance tips they would be greatly appreciated.