If you notice that your iPhone began to work less and less after recharging, this does not mean at all that something has broken in it - just that its battery capacity has decreased. All batteries lose capacity over time. In an iPhone, it is initially within 1600 mAh, and in a year it will decrease to 900. This greatly affects the duration of the device without recharging. Therefore, if you do not want it to work for two or three hours, you need to do an operation such as replacing the battery somewhere every two years.
The charge level does not always indicate that the battery is working, because it only shows the voltage level on the battery. It sits down especially quickly if you make frequent calls or use wireless networks. Therefore, in order to prolong battery life, do not use it to its full maximum.
Also, its capacity drops quickly if you have a habit of recharging the battery when it has not yet been usedtheir energy resources. So only charge your device when you really need it.
Replacing the battery is a very useful process, because after it your device will again be able to work for a very long time. Therefore, do not neglect this from the principle “it is better to save money”, because sooner or later the battery capacity will drop to 200-300 mAh, and then the iPhone will turn off right during calls, and this is not very pleasant.
If you want to replace the battery for only the price of the battery itself, then you can try to replace it yourself. But this is a rather risky undertaking. First, to dismantle the battery, you need to disassemble almost the entire device. Secondly, if you do it wrong, your warranty will automatically expire and you will lose both it and your iPhone. Therefore, if you are unsure of your abilities, then it is better to entrust such a procedure to professionals - it will turn out much safer and not much more expensive.
So, how is the official replacement of the iPhone 3GS and 3G battery going? If you bought a licensed device in the official store, then you can safely go to the service center - everything will be done to you professionally and efficiently. If you have already lost the warranty or somehow lost it (for example, replacing the battery manually was inaccurate, and you accidentally tore off the warranty sticker), then there's nothing to be done - you have to go to private offices. Here, too, one must be careful:ask the master for written confirmation that you left your device with him for repair - otherwise you may not get it back. It's a good idea to ask friends who already know how to replace an iPhone battery for advice.
You should not delay changing the battery - this will have a bad effect on the device's operating time. The most optimal interval for its replacement is one and a half to two years. During this time, the iPhone battery will work about twice as weakly. On the other hand, replacing the battery is expensive, so you should not change it too often either. If you still want to save even more money, you can try replacing the battery manually.
