Developing an ultra low power design is not a trivial task. It is here where you discover the manufacturer datasheet somehow achieves figures you just for the l

Developing an ultra low power design is not a trivial task. It is here where you discover the manufacturer datasheet somehow achieves figures you just for the live of you cannot achieve, even with their reference designs and evaluation kits. You can spend an entire month just adjusting the state of the various pins on your device to shave off uA's, and just when you have hit your power consumption target, you realise your product now doesn't always boot up or suffers from latch up in some circumstances / temperatures. Also this article does not take into consideration that the little CR2032 has internal leakage, your circuit has leakage currents and when transmitting you are suddenly pulling a lot more current out of the battery, so it wouldn't deliver that full 230mAh (but he did say it is hypothetical). Getting even 2 years of operation out of any of the CR range of batteries is already a feat. -edit typo