Apple may have had to replace as many as 11 million iPhone batteries under its heavily discounted $29 replacement program, according to John Gruber over at Daring Fireball. According to Gruber, Apple would typically expect to perform between one and two million replacements during the same period. Apple CEO Tim Cook recently cited the program, alongside a slowdown in the Chinese economy, as one of the reasons for the the company’s slashed earnings outlook for Q1 2019.
