18650 lithium-ion battery pack what are the common problems in use?

Source: 2020 - 04 - 19 20:15 hits: 18650 lithium-ion battery pack now basically has become a standard battery specification, but in the use of easy to encounter when a problem is missing, simple say is being worn, so how to repair this situation? The characteristics of the lithium battery in general, 18650 lithium-ion batteries will be used in parallel to increase capacity, that is, through the combination of several kinds of battery, the capacity of the battery can be improved. In general, the electric car, laptop batteries, use in the use of a few battery voltage in series, and then make the whole up to 36 v48v72v, etc. , but it is easy to appear when using more than 1, 2, the battery wear, like wooden bucket principle of short board, nature also affects the entire capacity of the battery pack. If this happens, we need to replace the battery, in order to better improve the battery life. So, 18650 lithium-ion battery pack in use is common problem? 1. Battery test lithium battery test if there is damage, is basically the batteries voltage and capacity will not cut. In the process of test, we can use a voltmeter measurement directly. If the battery voltage is lower than 2 on both sides. 7 v, or no detected voltage, then explain the battery has been damaged. If the battery voltage is lower than 2. 7 v, we can do the repair is the use of the charger, 4. 2v) To recharge the battery. After about 10 minutes, if there is voltage increases, we need to do is continue to charge. After a full charge, we will charge. If the voltage is 4. 2 v, the battery is normal. The main reason is that in the last may when using consumes too much power, batteries are completely stop working. If the voltage is far less than 4. 2 v, our battery will be damaged. If use after a long time, the battery can change in time, otherwise there is no other way to repair. 2. Battery repair 18650 lithium-ion battery pack will be very easy for a two cell damage, causing the battery can't use, this time we need to do is to each battery voltage and capacity, take a look at any voltage or low voltage is serious, the ability to appear bigger difference, etc. , wait for after found the problem of battery, we can be replaced, but need to pay attention to replace must change, the ability of battery internal resistance. In general, after replacement of the lithium battery service life is greatly increased, it is a common method, is also a kind of more economic and effective method. There are many considerations for using 18650 lithium-ion battery pack. We should pay attention to is that we must be equipped with protective plate, at the same time, we should also pay attention to limit overcharge, over discharge, short circuit, and so on and so forth, so as to greatly improve the life of lithium-ion battery pack. Lithium battery can't short circuit, detection must pay special attention to, when charging it is important to note don't overrun voltage and current, on the other hand, should grasp the good time when charging, charging is not too long time.