How long does your spare battery stay charged?

[rsarno]

I will buy the extended battery, thought i can use the stock battery as a backup.

Once it is charged, how long can it stay in my pocket without losing its charge?

 

[DJxEDxD]

with these new lithium batteries is say indefinitely . So long as it don't short out from keys or change.

 

[rsarno]

with these new lithium batteries is say indefinitely . So long as it don't short out from keys or change.

So i can charge it and let it sit in my car for few months just in case i have an emergency and need it??

Thats pretty insane, i thought for sure there would be a slow trickle