I did a test (like so many others have) and with BT on and modem as well I got 5 hours from 100% down to 33%.
Shutting off BT will gain about another 3 hours of battery time. As mentioned above yes adjust lighting down to minimum possible and don't engage auto brightness.
My suggestion is to shut off modem in settings as well and only start modem to check messages / mail etc. Use the device as a PDA and one can expect 20 hours of battery time as I have done in the past. Use the modem ONLY as required may be beneficial overall.
p.s. - I always have the device charging too as it creates less heat overall. I have recharged the PPP to 100% and shut off modem and BT and at this moment the PPP feels cold while idling.
That's a very good sign of extended device life. Something to consider for sure.
Shutting off BT will gain about another 3 hours of battery time. As mentioned above yes adjust lighting down to minimum possible and don't engage auto brightness.
My suggestion is to shut off modem in settings as well and only start modem to check messages / mail etc. Use the device as a PDA and one can expect 20 hours of battery time as I have done in the past. Use the modem ONLY as required may be beneficial overall.
p.s. - I always have the device charging too as it creates less heat overall. I have recharged the PPP to 100% and shut off modem and BT and at this moment the PPP feels cold while idling.
That's a very good sign of extended device life. Something to consider for sure.
