The difference between lithium battery and nickel-metal hydride battery charging method

The difference between lithium battery and nickel-hydrogen battery 1. High power density: The volume of nickel-hydrogen battery is close to that of nickel-hydrogen battery and lithium battery, which reflects the product characteristics of nickel-hydrogen battery. Taking into account the difference in power density, that is, the energy that can be stored in the same volume, lithium batteries are 3 times that of nickel-hydrogen batteries. 2. Self-discharge rate: The self-discharge rate usually means that the battery loses its own power in a strong state where there is no choice. The self-discharge rate of Ni-MH batteries is not very large compared to that of lithium batteries, but the self-discharge rate of Ni-MH batteries exists for a long time. Too much self-discharge rate of batteries reduces the selection period and ends the service life early. So more than ten years ago, the low self-discharge rate of nickel metal hydride batteries was the advantage of nickel metal hydride battery promotion activities, and the self-discharge rate of lithium batteries was negligible. This is because the chemical properties of the raw materials are purely different. 3. No memory effect: Ni-MH battery has obvious memory effect. The method of human memory is that the first impression is engraved in the brain. Nickel metal hydride batteries are all the same. If the battery is not fully charged or the battery is not satisfactory, the battery will only remember incomplete and unsatisfactory state for a long time. Application The performance of the program is storage capacity degradation. Lithium batteries do not have this characteristic. Therefore, every certain period of time, the nickel-metal hydride battery fully completes a deep charge of the battery to clear the engraving memory, which is similar to the brainwashing of people. Lithium batteries can be charged anytime and anywhere, making lithium batteries a happy battery, and we are also happy holders. 4. High charging working platform. The voltage of a lithium battery is 3.6v, and the voltage of a nickel-hydrogen battery is 1.2v, which is three times the latter. The charging method of the lithium battery is to set a terminal voltage, which is generally 4.2v for a single nickel-hydrogen battery. The battery charging method of lithium batteries is called the voltage limit current method (voltage refers to the voltage and current refers to the working current, that is, the voltage and working current limit) battery charging, and the voltage of the nickel-metal hydride battery of the working platform is very low. Generally speaking, Select constant current power supply (continuous working current) to charge the battery. Taking into account the difference in battery charging methods, lithium battery chargers and nickel-metal hydride battery chargers are not allowed to be mixed. 5. Specific models and specifications. At present, ordinary traditional Ni-MH batteries can often be heard on the market, and rare lithium batteries are even rarer. This is to consider that at this stage, lithium batteries are important for the application of large-capacity companies in the market. If small-capacity storage is used in the sales market, it is not only technical, but also cost-sharing is also a big problem 6. Daily: top up, top up for more than an hour. Prevent late night charging (high grid voltage). The battery can be charged at any time and can be used to alarm or shut down the phone. When using the battery of a handheld machine, pay attention to charging the battery as soon as possible, otherwise the self-discharge rate and voltage of the battery may drop again, which may cause the battery to be self-locked and protected. Get in the habit of going to work during the day and going home at night to start charging. 7. Choice: Under normal circumstances, the lithium battery can be charged, used and stopped. Cycle life refers to the frequency of fully charged and discharged. Partial battery charging can be understood as several one-time lifespans. The key to choosing a battery: After the battery is fully charged, you can add the battery to charge for about 20-30 minutes to reach saturation, but you must prevent a long period of time after the battery is fully charged. After a long period of time after full charge, the battery will cause secondary use, the result is to reduce the storage capacity and increase the resistance of the voltmeter, usually the storage capacity is reduced, and the phone is turned off when calling. PPC and other machine power chips are best used until the power is no longer live. It is important to consider the percentage of power measurement verification. 8. After the battery is recharged, the damage to the lithium battery is very serious. After the battery expires again, there will be side-uses inside the battery, the active material is reduced, and the rechargeable lithium battery is charged anytime and anywhere. Statement: Some pictures of articles published on this site And the content comes from the Internet, if there is any infringement, please contact to delete the previous article: Why should lithium batteries be used in products?