Skip to main content

HD2 + Energy rom - improve battery life

Before a time I criticized battery life of my HD2 flashed by energy rom. Last week I installed new version and it seems that HD2 can simply alive almost four days per one charge! I'm usually read internet at least 30 minutes per day, write a few messages, sync to google exchange, couple of calls.

How to improve HD2 battery life?

  • install energy rom :-)
  • definitely switch CHT (Cookie home tab) Editor's lock screen off. Despite it makes your device really unstable, it drains battery a lot - use WM's default because the android version can be simply unlocked in a pocket - significant battery life improve
  • use GPRS instead of 3G - significant battery life improve 
  • lower backlight to 20% - it's enough for almost all cases
  • switch vibration when any virtual key is pressed off
  • install all programs into main memory
  • switch weather animation widget off

Comments

Heather said…
Thank you for sharing tthis

Popular posts from this blog

ETCD: POST vs. PUT understanding

ETCD is distributed key value store used as a core component in CoreOS . I've already send a post earlier this week. Here is a page describing how to use ETCD basic commands = ETCD API. Code snippets placed in a page mostly use put , but ETCD allows to use post as well.  Most of us understand differences between those two commands in a notion of a REST(ful) service, but how does it work in key value store? POST Example over many words. curl -v http://127.0.0.1:2379/v2/keys/test -XPOST -D value="some value" curl -v http://127.0.0.1:2379/v2/keys/test -XPOST -D value="some value" Two same command result into following content: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 { "action" : "get" , "node" : { "key" : "/test" , "dir" : true , "nodes" : [ { "key" : "/test/194" , "value" : &

NHibernate performance issues #3: slow inserts (stateless session)

The whole series of NHibernate performance issues isn't about simple use-cases. If you develop small app, such as simple website, you don't need to care about performance. But if you design and develop huge application and once you have decided to use NHibernate you'll solve various sort of issue. For today the use-case is obvious: how to insert many entities into the database as fast as possible? Why I'm taking about previous stuff? The are a lot of articles how the original NHibernate's purpose isn't to support batch operations , like inserts. Once you have decided to NHibernate, you have to solve this issue. Slow insertion The basic way how to insert mapped entity into database is: SessionFactory.GetCurrentSession().Save(object); But what happen when I try to insert many entities? Lets say, I want to persist 1000 libraries each library has 100 books = 100k of books each book has 5 rentals - there are 500k of rentals  It's really slow! The inser