How to determine the battery capacity?

How to determine the capacity of the battery The battery of the inverter should be a lead-acid battery, which can be charged and discharged in a deep cycle. The battery is an important part of the inverter system. When purchasing an accumulator, the user should choose a product with good quality and larger power. Large-capacity accumulators can be used for a long time and can instantly start high-power electrical equipment to supply sufficient current. Regarding some high-power electrical equipment, it is recommended that the battery be 200AH (<1000W), and then when the power is large, it is best to use a 400AH battery. How to determine the capacity of the battery according to the use of electrical appliances, the simplest way is to use the power of all electrical appliances, multiplied by the time interval between each battery charge. The unit of power consumption is power or voltammetry. The following is an example of charging once a day. The specific calculation results are as follows: Watt hour (power × use time) TV VCD 115 watts 3 hours (1 hour per day) 345 coffee machine 750 watts 1 hour (20 minutes per day) 750 watts Microwave 800 watts, half an hour (10 minutes per day) 400 watts Calculate 1665 watts for 4.5 hours and 1495. Divide the active hours by 10 to convert to ampere hours (30°C): 1495 watt hours u0026pide;10u003d149.5 ampere hours. Regarding the above load, a 150 ampere hour battery can meet the demand. But in this case, the battery will discharge, the general battery discharge state is 50%, so for the above load, the user needs a 300 amp-hour battery. The larger the battery capacity (amperes), the stronger the power supply capability, and the less likely the battery is over-discharged. The life of the battery depends on the depth of discharge, the greater the depth of discharge, the shorter the service life. As the load increases, the battery capacity also increases. This may require the use of more than one battery. The two connection methods of the battery are: the battery is connected to the positive electrode, the negative electrode and the negative electrode. This doubles the charge of the battery, and the voltage is the same as the battery. It is not recommended to connect batteries of different manufacturers or different amps, as this will reduce the service life of the batteries. The maintenance of lithium batteries includes at least three aspects: the upper limit of charging voltage, the lower limit of discharge voltage, and the upper limit of current. In addition to the lithium battery, the general lithium battery pack also has a maintenance board. The maintenance board provides these three maintenances. However, the three maintenance methods of the maintenance board are obviously not, the global lithium battery explosion event or frequency. In order to ensure the safety of the battery system, it is necessary to conduct a more detailed analysis of the cause of the battery explosion. The following is an analysis of the reasons for the battery explosion: 1. Large internal polarization. 2: The pole piece absorbs water and reacts with the electrolyte gas drum. 3. The quality and function of the electrolyte. 4. The injection volume does not meet the technical requirements. 5: Laser welding has poor sealing function during installation, leakage and measurement leakage. 6: Dust, extremely dust is likely to cause micro short circuits first. 7: The anode and cathode plates are thicker than the process range, so it is difficult to enter the housing. 8: Liquid injection sealing problem, poor sealing performance of steel ball leads to air drum sealing. 9: The shell wall is thick, the incoming material is too thick, and the shell deformation affects the thickness. 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: Brief analysis of the lithium battery market for electric balance vehicles