The T105's are a very dependable battery and I would expect the same from the T605. BTW my U2200s are almost 7 years old and still performing well. Hope to get 3 more years out of them. Good luck and keep us posted.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7