What are the key concepts of mobile phone batteries

The most important parameter for a mobile phone battery is the amount of power it can store. This term is the battery capacity in technical terms. The meaning of the battery capacity is: the amount of electricity that should be supplied when discharged to the final voltage at a rate of 5 hours under the condition of an ambient temperature of 20 ℃ ± 5 ℃, expressed by C5, and the unit is Ah (ampere hour) or mAh (milliampere hour) . 2. Cycle life: Since the mobile phone is used continuously in the hands of the user, the battery is also constantly undergoing a cycle of storing and releasing energy in the hands of the user. This is what is usually called the charging and discharging process. All batteries have a certain charging and discharging cycle life. As the charging and discharging cycles continue, the capacity of the battery will gradually decrease, until it is too low to be used, and a battery has been charged and discharged many times from the original higher capacity After the process, its capacity is reduced to only 60% of its nominal capacity, and the number of charge and discharge cycles experienced during this period is called the cycle life. 3. Safety Mobile phone batteries are basically made of nickel-metal hydride batteries and lithium batteries. Due to their own chemical properties, there is a danger of explosion under high temperature, short circuit and other conditions, and at the same time under certain improper use conditions It is prone to damage, so some protection measures should be added inside the battery to ensure its safety during use. This is the safety of the battery. For example, a lithium battery has a protection circuit inside to protect the battery when it is overcharged, overdischarged, and overcurrent. 4. Charge retention capability. All batteries will slowly consume a certain amount of power even when they are not in use. The ability of the battery to maintain its existing power when not in use is called charge. The ability to maintain is called self-discharge as the saying goes. 5. Functionality Due to the wide variety of mobile phones on the market, some mobile phone manufacturers have added some circuits to the battery for some reasons, such as charging circuits, information storage circuits similar to battery ID cards, temperature test circuits, and built-in vibration motor circuits. , Dual SIM card circuit and so on. These circuits play a special function after the battery is installed in the mobile phone. This is the functionality of the mobile phone battery. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: What is the difference between 18650 lithium battery and polymer battery