Hi guys, This is just a quick thread simply to inform people of an experiment I did to improve my battery life. I devised it by mixing together two methods I found over a XDA which can be found here: Official response from HTC RE: How to double battery Life (WORKS!) + 2nd Reply - xda-developers And here: Battery problem, try this. - xda-developers I dont intend this thread to become a battery life competition with people boasting immense battery lives with everything on the phone turned off! Now, when I first got my Desire, battery life was initially a small problem, but like many other have said - it takes a while to break in and after a few weeks it became a lot better. But I was still charging it every night really - admittedly not really a problem. But I decided to try to find a distraction from doing pharmacology revision - I would try to calibrate it using the two aforementioned threads at XDA. The way I did it - which is just slightly different to the two XDA threads was: 1. Charge with the phone ON until the LED turns green. (For me - I didn't charge it from the battery drained - I charged from about 85%). 2. Unplug your phone and turn the phone OFF 3. With the phone still OFF - plug the phone in and charge again until the LED turns green. 4. Unplug your phone - and turn it ON. Wait for about two minutes and turn the phone OFF again. 5. Plug you charger in again and charge until the LED turns green. 6. Unplug, turn on and wait two minutes and then turn off 7. Plug it back in and charge again until the LED turns green. 8. Turn your phone back on again and voila 9. You could probably repeat this cycle a couple more times but I just did it twice. The way it differs from the two posts is that the first one said to charge for an hour when the phone is off, however my LED turned green after about 15-20mins so I saw no need to do it for an hour. And the second thread doesnt say to turn it on at all in between charge cycles. So there it is - using this method, my phone has been unplugged for just over 8 hours and is at 80% - this is from normal phone use - texting, sending an MMS, using the camera, receiving emails, browsing the market, downloaded a couple of apps and playing a cheeky bit of Angry Birds. Previously, if I did this my battery would never be this full! My phone is an unrooted but debranded Desire running 2.2 on Orange so no other fancy tricks! I have autosync on for things like gmail, twitter and exchange and its been on loud ringtone all day. So overall considering its had moderate use, this is definitely an improvement. I won't have to charge it tonight and I should get another day out of it tomorrow. Any questions let me know, and like I said this is just sharing what I have done just t o slightly improve battery life.