The 312s are rated at ~180 mAh so if you got 7.5 x 16 = 120 hours then your HA must draw 180/120 = 1.5 mA.
so, how many folks really care… I’m glad you know how to figure that out, assuming you are correct, I’m not going to the trouble to check. If you have already spent $2k -> $6K for aids just feed them .30 batteries and enjoy them. if all anyone has to do is worry about saving a few pairs of batteries a year they have it awful good.
You’re ignoring this member’s posts.