[grogenaut]

The pressure is to make the phones more powerful to do more with teh instegrahms, not to have longer battery life. If it were we wouldn't have gone from month long standby times (Nokia 5xxx) to partial day battery life (any modern phone with everything turned on). You can argue it all you want but battery is not growing faster much as our hunger for screen size, processing power, network use, memory, gps, etc are. Anything we can squeeze out of a battery will get gobbled up for quite a while.

Feel free to use something like this. It's geeky cool. I've just been burned by things like not being able to contact my ride from the airport, or my phone randomly deciding that it's just too dead to turn on at 8%, that I'm not trusting it for keys to my transportation / apartment.

For those things, if they have battery, like say my apartment combo lock, I want things with a good battery life (in the years) for the whole thing, a good failure state that I will always have on me (a combo), and obvious notification EARLY when the battery is going low.