I found out the best way to compare batteries in the "Real World." Not just on paper or a computer screen. Run them in a car with a brushless. You get rid of the possiblities of motor wear etc playing a part in the power. I ran a couple packs of 1.175's from another company and a couple of my 1.165's from Fuku back to back in my brushless XXXT. The fuku's had much more power. Battery power is very noticable in the brushless system because of the consistant motor conditions.