Android :: Determine Phone's Proximity To Known Point While Conserving Power

Jun 14, 2010

I am trying to determine if an Android user has had a close proximity to a list of predetermined locations. I'd like to do this with the least amount of drain on the phone's battery. The two mechanisms I see for accomplishing this are proximity alerts and requesting location updates. What are the pros and cons of the two methods? Will one have less affect on the battery than the other? In either case I would guess the specific location manager used would have some affect power usage (existing Stack Overflow answer).

Android :: Determine phone's proximity to known point while conserving power

Sprint HTC Hero :: Conserving Battery Power?

Nov 14, 2009

I am ISO methods to conserve battery power on my Sprint HTC Hero.

I posted this thread in the Applications Forum:

WiFi - On & Off - Toggle App? Which is the best one?

ISO of a WiFi Toggle Switch so that I can turn WiFi On and Off as to avoid wasting precious battery power when I don't need to be searching for a WiFi connection.

Having this always on uses more battery consumption.


Also, when Apps check for updates every 30 minutes vs. 4 hours, this consumes more battery power.


So, here are some thoughts I have to reduce batter power:

Facebook Widget

I have the Facebook App and downloaded as well as the Facebook Widget.

See this video for info on the Facebook App:

www. youtube. com/watch?v=KcCpmwzL4T4
(remove spaces, I don't want to embed video here)


The facebook widget is pretty cool. It instantly updates my friends status and there's a quick-add update status text box.

However, I had the settings to check for updates every 30 minutes. Reduced this to 4 hours, but that was pointless since 4 hours is such a long interval I wound up going directly to the main Feed Home page to see the status updates list.

Is adding the Facebook Widget consuming more battery power because it's always on the Scene page, always running, always checking for updates?

Would removing the Facebook Widget save battery power?

I could simply make a shortcut for the Facebook App and open it when I want to waste time on Facebook to see how vain, narcissistic, and attention-starved my friends and colleagues are.

So, my key question here is would removing the Facebook App and only opening the program when I need it save battery power?

Twitter App

There's two options to place on the Scene. One is just a simple text update box, the other actually has a feed.

I'm using the former. Hence, it's not updating feeds and it's only being used when I enter text and hit send update to Twitter.

Also, I think I have my settings set not to check for updates.

I assume that because I'm using the non-Live-Feed option Widget on my Scene, this is not constantly checking for updates, and hence, not consuming a lot of battery power?


Instant Messaging Programs

I have the Google Talk App, an Instant Messenger App (which has AIM, Yahoo, and MSN), and I recently downloaded the Meebo App (which has all of this plus others, including Facebook chat).

Meebo IM v21 Application for Android | Communication

I assume that by not running my IM App, or my Meebo IM App, and turning this off, this will save battery power. Correct?

Or, is it only consuming more power when I receive an incoming message. I imagine that the Meebo App, being connected to so many IM services, including Facebook, might be consuming more.

So, not leaving this on 24/7 would probably use less battery power.


GMail App and Mail App for IMAP/POP

I have my GMail App setup. I'm getting notified each time I have an email in my Gmail Inbox. I've created a label - Inbox2 - to skip the inbox - for messages I want to read, but don't want to be instantly notified of.

I've decided not to use the Mail App - Connecting my Fastmail IMAP account on my phone because I believe this would involve running a second Mail App constantly checking for inbound mail updates.

See my post on Email and Mobile here:

By using only the GMail App and not using the Mail App for IMAP/POP, this is probably consuming less battery power.



What other steps, tips and tricks, can be taken to consume less battery power on the Sprint HTC Hero?

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I've just bought my first Android phone, an HTC Legend running 2.1 which I love. What I don't love is the battery life! I've been experimenting with different methods of conserving the battery and would like to hear what others users are doing. At the moment I switch off Wifi when I'm not at home and switch off GPS when I'm out all day. I also use a task killer to stop auto-updating apps I don't want open. I have some applications that check for updates frequently, email, exchange client and Google Listen, how does this impact of battery life?What about battery management apps? I've seen apps that control aspects of the phone but they seem overly complicated to configure, i.e. it's unclear how different settings will affect battery life. I've come across an app called Data on Demand that switches to 2G when the phone is on standby or on a schedule which seems very promising however there's no obvious way of verifying that it's working! Finally, anyone using Locale for power management?

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Mar 12, 2010

I have significantly improved my battery life over the past few days by changing two simple and wifi.

Email first -
I have accounts set up on the Hero with Yahoo, GMail and Hotmail. When I looked, the Yahoo was checking every 15 minutes. GMail every hour and Hotmail once per day. As I am often in front of a PC with email open, this seemed like overkill.

So, I altered all three accounts to check only once each day automatically.

I also switch my wifi connection on as soon as I get home and leave it connected until I go to bed. I've now started turning this off when I'm not actively using it.

Here's my non-scientific results:
Getting up at 6:30am each day and using the Hero as normal before altering these settings would get the battery charge down to 25% at best by 11pm when I put it back on charge. It would often be less than 25%.

After changing the settings as above, my battery usually stays over 85% until probably early evening. My usage goes up when I get home from work quite a bit though and yet by 11pm, I still haven't seen the charge less than 65% yet.

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SDK: 1.6 Firmware Version: 1.5

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Following is my code...

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