I'm working on a project that requires low energy consumption. In standby mode, it will consume about 11uA. However, when it starts working (it will transmit data in RF), the current goes up to 121mA. This is going to happen 4 times a day, and the peak current duration is 2 seconds, at most.
Because of it, I'm searching for a battery (rechargeable or not) that gives me a high autonomy. I'm expecting 1 year of autonomy, at least. However, most batteries datasheets don't give the information about the duration of a peak current, and how much the battery gets discharged for it. I'm looking for batteries like CR2032, LIR2450 and AA types.
Let me give an example: LIR2450 has a nominal capacity of 100mAh. With dc current of 11uA, the autonomy goes for about 9100h. However, if in the middle of the day (all over the week) my circuit requires about 121mA for 2 seconds, how much does the autonomy drop? Is the battery going to be killed by that consumption?