@tnsai,
Based on your data usage, it doesn't seem as if you're going to have problems with data charges - U've used not even 10% of your 500MB in your last bill

Anyhow, I'm waiting for TomTom to release theirs but will think twice before I make the plunge since I'm usually the designated driver *grins*

Guys, need some advise here. I had actually done full restore twice for my phone, but still i'm having battery hogged issue. I was thinking should I send the phone back to Maxis and for warranty or not.

After a full charged, i was about use the phone for 5hrs (include game, surfing, call, sms, check mail). Standby idle for 18hrs.. Battery left 20%.. Is that consider normal? Had gotten my phone for 1 week, and I have to charge it everyday.

My case were:

- 3G is off (on edge all the while, fakeAPN installed)
- Wifi only on when needed
- Ipod is totally untouched (0 song, & movie synced)
- Bluetooth is off all the time
- Push is off (only check my Ping! / email whenever i on wifi connection)

P/s: Just wander, anyone send their 3Gs for warranty before? How long were it takes? And anyone have 1 to 1 exchange on the spot before?

Thats pretty normal. Besides you're only able to use the phone around 3 to 5 hours in a single charge. No matter you're browsing or gaming because the screen size and brightness has taken its toll.

Hi Jim.. Thanks for ya feedback! Am goin to try again today. Full charge after drained the batt to 5 percent and see how was it. Cause if there is a forumer where his phone can standby for a day ++ with around 3 hour usage.

try follow the 'guide' from Apple

Iphone Battery

basically need turn off many things ... or may be the phone when not in use 

regarding to use usb cable or not, do u guys use usb cable anytime u wish or u just wait until the battery low like 20%. i always use usb cable n afraid it will affect my battery life span.

Guidelines for prolonging lithium-ion battery life

    * Lithium-ion batteries should never be depleted below their minimum voltage (2.4 to 2.8 V/cell, depending on chemistry). If a lithium-ion battery is stored with too low a charge, there is a risk that the charge will drop below the low-voltage threshold, resulting in an unrecoverable dead battery.[citation needed] Usually this does not instantly damage the battery itself but a charger or device which uses that battery, will refuse to charge a dead battery. The Battery appears to be dead or not existent because the protection circuit disables further discharging and there is zero voltage on the battery terminals.

    * Lithium-ion batteries should be kept cool. Ideally they are stored in a refrigerator.[citation needed]
    * Aging will take its toll much faster at high temperatures.[36]

A lithium-ion battery provides 300-500 discharge/charge cycles. The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges.

Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as "digital memory". Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate. (Read more in 'Choosing the right battery for portable computing', Part Two.)

Actually according to a battery care I read somewhere.. it is a good idea to keep lithiun ion batteries topped up as much as possible.. can't find the link or remember what it is, but I'll post it when I find it.

jz read more

http://en.wikipedia.org/wiki/Lithium-ion_battery
http://www.batteryuniversity.com/parttwo-34.htm

Which mean, to keep fully charge battery is recommended to prevent dead battery? Correct me if i'm wrong. Cuz i always plug in suka hati. afraid battery kong. 

BTW, thanks for the info guys.

Which mean, to keep fully charge battery is recommended to prevent dead battery? Correct me if i'm wrong. Cuz i always plug in suka hati. afraid battery kong. 

BTW, thanks for the info guys.

iPhone's battery life is based on charge cycles rather than the 'charge only when near zero' principle.

i thought the adapter will control overcharge or not ?