Battery charge time and cycle

[tiptopjat]

Hi guys,

I have a jailbroken 3GS running OS 3.1.2

I followed all the battery saving tips found here (http://forum.theiphoneblog.com/iphone-help/175102-iphone-battery-tips.html)

I typically spend 1 hour on voice calls during the day, use twitterific/facebook, iPod music, create/respond sms, fetch emails hourly and will spend a bit of time on games or browsing safari.

The maximum battery usage i get is 5 hours. It's a joke, I have to be close to a recharge point all day! I'm going to keep a log of my activity and screenshots of the battery usage time.

Is anyone else experiencing similar problems?

Also, my battery takes 1hr 15 mins to charge from flat to 100%. This seems very fast to me, is that right?

 

[GDong#IM]

That is about the right time it should take for 3GS to charge from zero to 100 in 1:15.
Regarding battery life, I think it is a little bit short. Are you having your Display ON while you are listening to music. The battery drains out a lot due to display. So the less power you use on the display, the more your battery life.

 

[BLiNK]

restore as new. re-jb. etc..

having a charger near by (car, office or home) = fact of life with the iphone
it's just something that loyal users have become accustomed with.

 

[tiptopjat]

My display is always on sleep when I listen to music, I change tracks using the control on my earphones.

The only jailbroken app i use is bitesms, which is my default SMS client. I think I will restore once OS 4.0 is released, I'm hoping it with the bitesms functionality built in!

I went clubbing a few weeks ago and my battery died as I left the bar, leaving me stranded in central london after I'd lost all my friends! I felt like throwing my phone in the bin!

 

[flyingember]

Do you have your phone set to never auto lock? This actually causes the battery to drop faster than if you choose the let it lock after X minutes option, even manually locking it.

I would get 4-6 hours with the former and closer to 12 with the latter, even with a comparative amount of use and lock time.

 

[tiptopjat]

Yes, my phone is set to autolock after 1 minute. I have followed every single battery saving tip but it doesn't seem to make any difference!

 

[John T]

......fetch emails hourly.....

"Fetching" emails is a sure way to drain the battery.

 

[tiptopjat]

Well I've changed email from push to fetch hourly and it has no effect on battery life. I'll change it manual, let's see if that helps battery. I won't hold my breath!

 

[awtryau89]

Well, since JB and adding a 2nd Exchange account, my batt life has taken a hit but it depends again on awake time. If I use my phone on a normal day, I usually go through the day at about 50% usage. If I am at my desk and waking my phone at every message delivery and checking Twitter very often, it takes a big hit. Its all about screen awake time and intervals for me. I can keep my screen awake for long period of time with long breaks in between and I notice improved batt life. Its the on-off-on again multiple times an hour that kill me.

 

[flyingember]

I would blame the jailbreak. it can and does break stuff, including battery life.

remember, jailbreak apps can do whatever they want, including run in the background constantly. it's a tradeoff for more control, you lose it at the same time

 

[John T]

I'm sure it's more than coincidence that the majority of posts such as this, complaining of poor performance of the iPhone include the caveat "my phone is jailbroken"!