XDA포럼에서 퍼왔습니다.

http://www.xda-developers.com/android/calibrate-your-htc-desire-battery/

http://forum.xda-developers.com/showthread.php?t=755903

내용은 이렇네요.

I understand your concern regarding battery life on your Nexus One device. The following steps should significantly extend the battery life on your phone. Please connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged. Disconnect the phone from the charger, and power it off. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green. Disconnect the phone from the charger and power it on. Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green. Disconnect the phone, power it on, and use it. You need to use this sequence only once. If the issue of battery life on our phone persists, I recommend you contact our HTC accessory department directly.

요약하자면..

(1) power on 상태에서 완충(녹색 LED)

(2) 충전기랑 연결 해제 후 power off -> 다시 완충

(3) 충전기랑 연결 해제 후 powe on -> 켜지면 power off -> 다시 완충

(4) 충전기랑 연결 해제 후 power on -> 사용

밑에 thread를 더 살펴보면 4번에서 power on시 recovery로 들어가서 wipe battery stat을 해준다고 하는군요.

이렇게 하면 100%에서 오래유지가 된다고 합니다.

한번 시도해 봐야 겠네요.

본문 내용을 살표보면 5분 정도 걸린다고 하니 조금이라도 이득이 있으면 이득이라는 군요.

혹시 해석이 이상하면 알려주세요. (영어가 딸려서. ㅠ)