Welcome to Android Central! For the battery issue, charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:
1. The main Settings>Battery screen.
2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
3. The Screen category (to see total Screen On time).
4. The Cell Standby category, if present (to see Time Without Signal).
http://forums.androidcentral.com/amb...d-central.html
For the RAM question, there is no way to physically increase it--it's a hardware issue. You'd have to get a new phone that was built with more RAM. If you're asking about wanting to free up RAM, that's not how Android is designed. See these articles:
http://forums.androidcentral.com/amb...m-android.html RAM: What it is, how it's used, and why you shouldn't care | Android Central
