The PRO bateries are NOT rated for 10 yrs. I believe its 30,000 hrs - almost 3.5 years. The instruction manual recommends replacing the batt on a 3-year schedule.
I believe some of Aimpoint's other sights' batteries are rated up to 80,000 hrs...
I believe some of Aimpoint's other sights' batteries are rated up to 80,000 hrs...