[Captivate Android Development] RaptorOne3:
I would like to say something about this "battery calibration" thing that seems to be floating around...

First off, flashing to stock with OdinOneClick and then Master Clearing in USB Debug mode wipes the battery stats right from the start. So, providing that everyone flashes properly you really shouldn't have to wipe your battery stats... The percentile usage tables (Battery Stats) are merely a tool for the user to visually determine what processes are using the battery and how much. Battery Stats doesn't affect how the device uses the battery. It's merely a usage display.

It never hurts to fully discharge a battery once or twice in terms of testing its functionality or determining how long it can last in general, however, I fail to see how fully discharging it would assist the battery in holding a full charge longer...

The applications and accessories that utilize power on the device itself are vastly dynamic. Meaning, power usage is always going to be different depending on how long you use the app/accessory and what that particular app does. Because of this you will never be able to achieve the same results twice unless you use the exact same apps in the exact same way, all the time.

Think of a battery as a cup and the power inside the battery as water. If you pour out all the water, will the cup fill up differently? Will it pour out differently after being refilled? Hmmm... Probably not. Well a battery is very similar, as far as charging and discharging is concerned...

App usage can be visualized as taking sips or gulps out of that glass of water. Different apps will sip out of that cup differently. And depending on how long or what type of app it is it may take longer sips or even gulps... Lets say you drink a glass of water. (analogy- you used a bunch of apps/accessories and the battery is now dead) It's empty now. Are you going to remember exactly how you drank that last glass of water? Can you repeat it? Would you want to try? lol

Honestly, all this battery calibration mumbo jumbo is, technically, exactly that; mumbo jumbo. Batteries don't require calibration. They charge and discharge, it's simple.

MY ADVICE FOR PEOPLE EXPERIENCING BATTERY ISSUES -

If you are experiencing any kind of unexplainable battery discharge anomaly and you can't put your finger on it, you need to do this to find out EXACTLY what the problem is.

You must start with a fresh ROM flash. This is important because it gives you a true fresh-battery-stats slate to work with. This is critical to determining if there is an underlying ROM based cause for the battery discharge.

Next, if there are any installed APPs enabled/running, DISABLE ALL APPS AND ACCESSORIES (wifi, bluetooth, GPS, Auto Rotate, disable it all), all except what is required for the device to function.

After the device has been flashed properly, all apps and accessories have been disabled, plug it into the charger and allow the device to fully charge. Once the device is fully charged, unplug it. Do not unlock the device or press the power button. Leave the device locked for at least 2 hrs. Do not click the power button to check on it. Leave it alone. Once 2hrs has surpassed, unlock the device and check the battery stats. You will now have a baseline (control) of how the device functions on the ROM, bare bones, without any apps or accessories running.

This will allow you to determine if there is any kind of coding anomaly or other unexplainable error within the ROM itself causing the battery to discharge without interactions with the device.

This will also allow you to strategically enable apps and accessories one at a time and compare the usage rates to the control run. Doing this will more specifically allow you to determine what app or accessory is using a lot of power.

Now here's the deal. If one of the accessories, such as WiFi or BlueTooth causes abnormal or extremely fast battery discharge then it's very possible there could be a hardware related issue with the device itself. You may have to have it looked at by a techie.

Now if it turns out to be a specific application causing abnormal battery drain, then now you know which app it is specifically. Then you can address that issue accordingly.

Also, please review this to determine if, possibly, you may have damaged your battery and to ensure that you don't! - (PAGE 189) http://downloadcenter.samsung.com/c...TT_SGH-i897_Captivate_English_User_Manual.pdf

IF ALL ELSE FAILS, BUY A NEW BATTERY, THEY AREN'T THAT EXPENSIVE! - http://www.samsung.com/us/mobile/cell-phones-accessories/batteries-covers-sub