Life of LiPo 3.7v 500 mAh battery

[jgruen2]

I am working on a project and we are using a LiPo 3.7v 500 mAh battery and I want to know how long the battery will last. We are using bluetooth and the circuit is only on for about a millisecond before it goes into sleep mode. The chip transmits at 60 mA and then goes to about 1 micro amp in sleep mode. How can I calculate how long the battery will last? When I try to calculate the time I get an absurd amount of time, like 20 years. How long do LiPo battery's last when sitting Idle?

Here is a link to the battery that I am using.

https://www.adafruit.com/product/1578

 

[IRstuff]

You've not said what your duty cycle is, so the answer could be anywhere from 11 months to 57 yrs. But, the high end is limited by self-discharge, so no more than about 3 yrs.

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[itsmoked]

How long do you want it to last?
Is this to be a product or just a project?

Keith Cress
kcress -

http://www.flaminsystems.com

 

[itsmoked]

Do you plan to recharge the battery regularly?

Keith Cress
kcress -

http://www.flaminsystems.com