I want to change 2 AA batteries in series for rechargeable batteries. The specs of the device are the following:
-Input Vcc: 1.8-3.3V (It seems to support 3.5, not sure if it can be an issue)
-Consumption: Sleep 5uA, running 1mA, transmitting 450mA.
The device runs around 10 times per day, the running mode lasts for around 3 seconds each. I expect it to work for about a month before having to recharge it, can anyone suggest me a way to find this out or a straight forward battery?