Agree, I've observed the same for L on Nexus 5, and battery life is not the only problem there, there seems to be a system memory leak that constantly eating up

Agree, I've observed the same for L on Nexus 5, and battery life is not the only problem there, there seems to be a system memory leak that constantly eating up free memory until even the launcher is killed... I had way more free memory, and no leak on JB.