When we go out, we often find that the battery of the mobile phone is quickly consumed, and the fee of using a shared power bank to charge is very high. Sometimes our mobile phone battery capacity is not enough, which will bring us awkwardness, here we introduce several reasons why the mobile phone battery drains fast.1.The extreme temperature.Apple says that the optimal operating temperature for the iPhone is between 0°C and 35°C, with 16°C to 22°C being the ideal temperature zone. In fact, the normal operating temperature of most mobile phones is about the same. The batteries of our mobile phones are generally lithium polymer batteries, which are charged and discharged through the chemical reaction of electrical energy → chemical energy → electrical energy. This chemical reaction is easily affected by temperature. When the temperature is too low, the chemical reaction rate of the lithium battery will be greatly reduced, so the electric current discharged by the battery becomes smaller, which directly reduces the available capacity of the battery. This is why in a very cold environment, you will find that the battery life is reduced. The battery capacity may jump directly from 50% to 30%, or even shut down without power. But don't worry, this situation is reversible and will not cause actual damage to the mobile phone battery. When the battery temperature returns to the normal operating range, its performance will also return to normal. However, high temperature environment can also damage the battery, and this damage is irreversible, so we should try to avoid placing the phone in an environment where the temperature is higher than 35°C, otherwise the battery capacity may be permanently damaged.2.The poor mobile phone signal.People who use iPhone may have discovered that when we use cellular data to surf the Internet, the speed of battery capacity loss is obviously faster than that of wifi. This is because when you are in an area with poor cellular data coverage, the signal received by the mobile phone is very weak, so the mobile phone will increase the power of signal reception and transmission to maintain the stability of the signal connection. In this case, the power consumption of the mobile phone will be reduced. So you will also feel that the battery of the mobile phone is not durable, and it will lose power very quickly.3.Run a lot of unnecessary apps.When we use iPhone, we often use several apps, and we almost only use one app at the same time, so if we do not close the remaining apps, they generally continue to run in the background, and the running of these unnecessary software will consume a lot of power. Battery capacity loss in outdoors is faster than indoor use. We often adjust the brightness of the mobile phone screen to a higher level outdoors, especially in the daytime, which also consumes a lot of power.4.The battery aging.In fact, the battery of our mobile phone has a lifespan. This is because the components of the mobile phone battery will gradually age during use, and the density of lithium ions will gradually decrease, which directly leads to the continuous reduction of the battery capacity of the mobile phone. Under normal use conditions, the actual capacity of the battery is not as good as it used to be after 2 years of use. This is also the reason why we feel that mobile phone power losing quickly. About OriwhizORIWHIZ is a mobile phone LCD/OLED screen and other phone spare parts' manufacturer（factory）,we offer OEM and ODM service to customers all over the world.Our products have ISO9001,CE,FCC,ROSH certificate.All of our products are manufactured by brand new materials and 100% quality test before shipping.We promise our best quality products will be delivered to our clients on time.We have professional customer service and welcome inquiry any time. Our main products include: iPhone LCD,iPhone Charging Port,iPhone Front Camera,iPhone Back Camera,iPhone ear speaker,iPhone Battery.etc.Not only iPhone related products,we also have mobile phone parts for Samsung,Huawei,Xiaomi Oppo,Vivo etc.