Not sure what you are asking.
First, anything that is either 510 or eGo threaded will fit on the battery itself.
But eGo batteries are old technology low current batteries. Using a coil lower than 1.8 ohms will shorten their overall life span, give you very short run times, or fry the protection circuit in the battery - rendering it non functional.
If you look at just the Aspire BVC voltage recommendations an eGo T just can't cut it for those coils. And the current required issue still applies - an eGo T cannot deliver the amount of current required to deliver what you want out of the 1.8 ohm version, let alone the 1.6 coils. Which would explain the lack of TH you are experiencing. ~>
Aspire - A change to the BVC coils
What will fit on an eGo class battery is one thing, what is safe or reasonable to use on it is another. You really are limited to things like single coil ProTanks and such in the 1.8 ohm or higher resistance range.