He mandado un correo y me han contestado un rollo:
We believe that a recent connectivity bug may be causing some shortened battery life and are working hard on a solution. If your battery issues are new, please keep an eye on your bluetooth connection and let us know if you think that it is a factor.
Another source for potential drains are third party apps. We are trying to hone in on apps that are using a lot of battery, so please let us know if you discover one causing issues while experimenting for question 7 below.
Answering the following questions will give us better insight into what could be causing battery drainage issues:
1. Did you charge your Pebble fully? For how long did you keep it connected to the charger?
2. Which watch face are you running most of the time? Could you please use a stock Pebble watchface and see if the battery life improves?
3. How many notifications do you approx. receive on average in a day on your Pebble?
4. Did you notice the backlight go on more often than necessary?
5. Have you noticed any interruption in notifications in the few hours before the battery dies?
6. Do you often use the music app? Since it is required to be responsive and does a lot of Bluetooth communication, it tends to consume a bit more power.
7. Which third party apps do you use on the watch and on your phone for controlling the Pebble? Could you please try disabling them temporarily to see if the battery life improves?
8. On Pebble, please go to Settings, then Factory Reset. Charge your watch overnight and use it normally (without any 3rd party apps installed). Please make sure the watch is paired with the device most of the time
No me ha funcionado nada.a ver si con suerte es un bugg y lo mejoran en la proxima actualizacion!