18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

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Battery failure check.18650 battery 3500mah lithium

release time:2023-07-14 Hits:     Popular:AG11 battery

  

  1. Failure examination

  First check whether the connection of the charging circuit is reliable, check whether the connection connection and the plug are intact, carefully check whether the socket and the plug have a "fire" arc phenomenon, whether the melting wire is well exposed, the burnt trace of the fuse seat, there are no wiring lines, there are no wiring lines Damage breaks, etc. Check whether the charger is damaged and whether the charging parameters meet the requirements. Check whether there is a drying phenomenon inside the battery, that is, the battery is serious. It should also check whether the polar plate has irreversible sulfate. The inferior sulfate of the plate can be determined by the change of the end voltage by charging and discharge. During charging, the voltage of the battery rises particularly fast, some single -square voltage is particularly high, and it exceeds the normal value; the voltage drop is particularly fast during discharge, and the battery does not save or stores very little. If the above situation occurs, the battery can be judged that irreversible sulfate is available.

  2. Fault treatment

  Check whether the charging circuit connection is reliable (check whether the fuse and the fuse are well exposed), and the charger should be replaced abnormally. Drying batteries should be supplemented with dilute sulfuric acid of pure water or 1.05g/cm3 to maintain charging and discharge the battery capacity. If there is an irreversible sulfate, a balanced charging recovery capacity should be performed. After the dry battery is added to maintain the charging, the maximum current should be controlled by 1.8A, the charging is 10 ~ 15h, and the voltage of the three batteries is more than 13.4V/only. If the voltage difference between the battery exceeds 0.3V, it means that the battery has occurred that the irreplaceable irreversible sulfuric acid has occurred. For batteries with irreversible sulfate, you need to replace a formal battery or activate the battery.


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