My maximum battery life on Sola is DAYS. I haven't measured the exact number of days, but it is, at least, 5 days. This is the maximum in the right conditions: the phone is on (standby), good cell signal, no wifi, no BT, the screen is off. To achieve this result I turned off animated background and disabled apps like facebook, twitter, whatsup etc. Of course, when I am using the phone, and the screen is on, the battery is drained much faster, but still, I get a reasonable number of hours.
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