Sorry, I must have mis-read something about an AC power cord on your TT.
Large, AGM batteries do provide a sonic performance boost over the one Teres recommends, the heftier the better. It should be easy to sneak a battery into the house, it certainly isn't eye candy! ;-)
We also bought a "smart" charger that extends the life and optimizes the performance of the battery. This means we never use the Teres charger and it's disconnected. In our system any charger compromises sonics if left attached during play.
Large, AGM batteries do provide a sonic performance boost over the one Teres recommends, the heftier the better. It should be easy to sneak a battery into the house, it certainly isn't eye candy! ;-)
We also bought a "smart" charger that extends the life and optimizes the performance of the battery. This means we never use the Teres charger and it's disconnected. In our system any charger compromises sonics if left attached during play.