Those battery details that can't be ignored

From small to large, our lives have been inseparable from AA batteries and AA batteries. They have become objects that are closely related to us in life, such as flashlights, clocks, toys, radios, remote controls, etc., all need to be driven by batteries. Many friends are not clear about batteries, so today I will take everyone to take stock of common battery series in life. What are their advantages? 01 Common types of batteries The batteries used in flashlights mainly include: alkaline batteries, nickel-metal hydride batteries, lithium batteries, lithium ion batteries. According to whether they can be charged, they are also divided into primary batteries (one-time non-rechargeable) and secondary batteries rechargeable battery). Primary battery (non-rechargeable battery) includes metal lithium battery: lithium manganese battery, lithium sub-battery, lithium iron battery Dry battery: zinc manganese dry battery, alkaline zinc manganese battery Storage battery: silver zinc battery secondary battery (rechargeable battery) rechargeable Battery: Along acid battery, nickel-cadmium battery, nickel-hydrogen battery, zinc-air battery, liquid lithium ion battery, polymer physical ion battery. The power consumption of current LED flashlights is generally not small. From the perspective of economy and environmental protection, for flashlights, it is recommended to use rechargeable batteries as the main energy storage device and non-rechargeable batteries as backup options. For enthusiasts, the most ideal battery is a rechargeable lithium battery, which has a large energy density and a high discharge voltage. It does not need to consider the memory effect, is economical and environmentally friendly, and has various advantages. 02 Classification of batteries Alkaline batteries: The advantages are easy to obtain, high safety, low price, the disadvantage is that the capacity is small, the large current discharge capacity is poor, and it cannot support high-power flashlights. Common size models are AA (No. 5 battery), AAA (No. 7 battery), C (No. 2 battery), D (No. 1 battery) Ni-MH battery: high safety, large capacity and suitable for large current discharge, superior performance. Although the price of a single piece is relatively high, it can be recycled, which makes the cost of use extremely low. Common size models are AA (No. 5 battery), AAA (No. 7 battery) lithium batteries: high safety, and the single energy is the largest, the voltage is high, the low temperature environment is resistant, and the performance is very superior. The disadvantage is that the price is high and the sales outlets are few, and it is not easy to replenish. The common size models are CR123A, CR2 lithium-ion batteries: a single battery has large energy, high voltage, and can be recharged and recycled, so the use cost is low. The common size models are 14500, 16340, 18650, 21700, etc. To ensure safety, please choose the lithium battery flashlight produced by a formal professional flashlight manufacturer, and try to use the original battery. 02 Do not 'full charge' or 'overcharge' the battery maintenance work, and the lithium battery does not need to be activated. After buying the lithium battery home, many friends like to 'activate' the lithium battery first. That is, first charge the lithium battery for 10-12 hours. There are also some friends who like to continue to charge the battery for another hour as a 'refill' after the battery is fully charged, because they believe that the longer the charging time, the fuller the battery will be. In fact, these methods may reduce battery life. For example, when using a charger without charging protection, if the battery continues to be charged for a long time after being fully charged, the battery will be overcharged. Overcharging will deplete battery capacity and cause safety accidents in severe cases! The correct approach is to try to choose a charger with charging protection when charging or unplug the power immediately after charging! Do not charge and discharge lithium batteries frequently. Many friends think that the 500 cycles indicated on the lithium battery manual means that the battery can only be charged and discharged 500 times. Therefore, in order to make full use of the battery life, many small partners will choose to dry the battery before charging. . There are also misunderstandings in this understanding and practice. It is best to develop a good habit of charging lithium batteries at any time. Simply put, the number of cycles marked on the lithium battery manual refers to the full charge cycle of the lithium battery. Lithium batteries have no memory function, and the accumulated charge and discharge power exceeds 80-90% of the battery capacity (standards of different manufacturers are also different), and it is counted as a charge cycle. Therefore, it is recommended that you do not need to charge after deep discharge. On the contrary, if the battery is left to dry for a long time and then recharged, the activity of the chemical substances in the battery will be reduced, and the battery life will be damaged. Therefore, it is necessary to develop a good habit of charging at any time. Use a suitable charger, do not use the chemical activity of the product lithium battery is very active, higher requirements for the charger. Using a brand-name charger or an unsuitable fast charger will not only affect the service life of the lithium battery itself, but also cause an explosion due to the breakage and short circuit of the diaphragm due to overheating. There are many charger products on the market. In order to prevent everyone from choosing counterfeit or unqualified products, Liang Tsai teaches you a trick: the choice of charger must be based on product certification. At present, domestic electronic products mainly have 3C certification, and European and American products have CE certification, RoHS certification, and FCC certification. When purchasing, the more the number of certifications attached to the product, the better, and those without certifications will not be purchased. In addition, choosing a charger with a smart charging mode can also extend the life of the battery. Finally, I hope everyone can pay attention to the safety of electricity in daily life. 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 article: How much do you know about batteries?