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Can you use a scratched battery?
Yes its casing is not punctured. Cover it with tape and keep a closer look on it the first time you charge/discharge. I would still use it. What level of risk you are willing accept is up to you.
What happens if you take the plastic off a battery?
If you cut the plastic off, the only thing holding the battery pack together is the small connections between the individual batteries that will break if flexed too much. the plastic keeps the batteries together and allows the to fit in your device.
Do batteries need the plastic?
Keep them away from metal objects The container in which you store your batteries should be made of plastic, glass, wood … anything but metal. Also, do not store other metal objects in the same container as your batteries.
Why are batteries covered in plastic?
If an accident causes the voltage to increase, the added plastic insulating layer would act as a resistor, which could drive up the heat inside the battery to a point where it could still catch fire.
What makes up the negative side of an 18650 battery?
There are some other components available with the aluminum foil as well. The negative side is traditionally made from carbon materials like graphite and silicon. The 18650 batteries are the cylindrical cells, and all the cells are constructed with a basic design.
What’s the best way to charge an 18650 battery?
When choosing the charger, try to choose the top brand of 18650 lithium-ion battery charger, they have good quality control, and after-sales service, and thus can extend your battery life.
Can you tell which side of a battery is positive?
Hundreds and thousands of other people in the world still cannot tell which side of a cell is the positive or negative side. If you still want to know more, check the following two articles： Battery Type 18650: Introduction, Application, and Performance, 18650 Battery Cell-Recharge, Care, and Safety.