I believe it wasn't slowing down the phones to extend battery life, it was slowing down the phone's power draw because as the LiPo battery wore out it could no

I believe it wasn't slowing down the phones to extend battery life, it was slowing down the phone's power draw because as the LiPo battery wore out it could no longer give the peak power like it used to. The only real fix was to throttle the phone, which apple did a horrible job communicating on.