18650 lithium battery with protection board?

Source: 2020 - 04 - 20 20:07 hits: 18650 lithium batteries have protection panel? Not necessarily, but sales of 18650 single cell lithium-ion batteries in the market now will have protection measures, so it is safe, can be at ease use. What is the function of protection plate of single cell? In fact, is simply to protect the battery protection board, a battery protection board is usually have multiple safety protection. Is more than 18650 lithium-ion batteries, accurately, all you need to use lithium battery, mainly for battery overcharge, over discharge, short of doing a comprehensive management. You might as well as containers and water. When the taps ( The battery) , no protection, no close the faucet, the water will continue to flow into the container, Charging) When the container not full, water flow, will overflow. 18650 lithium battery protection board and lithium-ion batteries, as we all know, if you don't manage and control them, they will continue to charge, more than four. 2 v, until the explosion. This is what we call the overcharge. Also, if the discharge is continuous, the battery will be less than 2 v. In this case, the user can't charging, battery scrap basically. However, for professionals, the battery can charge the battery in low power flow. So there must be some protection measures. And over current insurance, short-term insurance, etc. I did not elaborate. 750 ma lumens discharge, discharge battery platform. Charging recommended not to use the charger, because it is a protective plate, when charging will not overcharge. 18650 lithium battery protection board and battery have no what is the difference between battery protective plate 1. Cells without plate height is 65 mm, the cell zone plate height is 69 - 71mm。 2 to 20 v, discharge, if the battery to 2. 3, will touch is negative, if the battery after 10 seconds without any reaction means that there is a protective plate, the battery is hot, if there is no protection board. Note: the third test, not professional, don't do the experiment, because it may be very powerful explosion, caused irreparable injury, especially those of inferior battery. A certain 18650 lithium batteries have a protective plate method method 1. Lithium battery length is 650 mm, 18650 offices in more than 1 mm at the cathode round protection board; Method 2. 18650 lithium battery short circuit current through 10 a or 20 a real-time test of the ammeter. If the reading of the ammeter is instantaneous, and soon became a zero, which means 18650 lithium batteries have a protection plate. Before 18650 lithium-ion battery pack need to filter, different customer request 18650 battery lithium battery pack is completely different, because 18650 lithium ion power battery production high degree of automation, good stability, high replaceability, can effectively reduce the production cost, labor saving, 18650 battery system development of modularization and standardization degree of the unique advantages are incomparable. However, any every coin has two sides, advantages and disadvantages coexist is the normal state of things. In addition to the above advantages, the disadvantage of 18650 lithium-ion battery pack also nots allow to ignore. At present, 18650 lithium-ion battery is the chief drawback of single battery capacity is low, generally at about 2 ~ 4 ah. Therefore, a complete electric cars need a lot of batteries. Tesla need 7000 to 8000, 18650, for example, the lithium battery can be reliably connected to the module. Therefore, under the condition of the battery quantity is so big, also more and more high to the requirement of battery management consistency. In the field of electric cars, etc series combination, battery inconsistency will affect the performance of the battery, even bring safe hidden trouble.