I want to only buy Ego batteries now with fuel gauge. The model numbers with those end with a T. However, I am having hard time finding them and the new tools don't seem to come with those. Home Depot etc. only have the ones without the gauge.
It looks like the batteries are available at Home Depot. Maybe not in a store, but online according to this link.
If you are looking for them in the kits with tools, that might take awhile because I imagine EGO has a fair amount of non-T batteries in inventory to work through (both sales and warranty replacements).