YES. You must replace the battery IMMEDIATELY. Such damage could cause the battery to catch fire or explode.
The vast majority of 18650 batteries are housed in a steel case, and poor quality batteries due to their lack of protection may cause their internal pressure to suddenly rise when overcharged (overcharge) and explode when they exceed the acceptable level exceed.
Your best bet when dealing with an old battery is to be safe and get rid of it. Resist the urge to throw them in the trash as it could harm the environment. Instead, place batteries individually in containers or plastic bags and take them to your local recycling center.
How many 18650 batteries are in a Tesla? The most popular Tesla battery pack contains 7,104 18650 cells in 16 444 cell modules. The associated capacity of the 18650 batteries is 85 kWh of energy.
Most modern 18650 batteries have a typical lifespan of 300 – 500 (charge, discharge cycles). In high amp or high drain situations this can drop significantly to 200 cycles. If you exceed the maximum discharge current limit (A), you can reduce the cycle life up to 50 cycles.
Unlike NiCad batteries, lithium-ion batteries have no charge storage. This means that deep discharge cycles are not required. In fact, it is better for the battery to use partial discharge cycles. There is one exception.
Even if the battery is sealed lead-acid, punctures almost always lead to acid leakage. These acid leaks can cause chemical burns, corrosion, and equipment damage. If the puncture is severe, the lead plates can come into contact with each other and cause an internal short circuit in the battery.
Lithium-ion batteries, however, are extremely sensitive to high temperatures and are inherently flammable. These battery packs tend to degrade much faster than they normally would due to heat. When a lithium-ion battery pack fails, it bursts into flames and can cause extensive damage.
Most manufacturers state that the maximum operating temperature is 60°C. But that doesn’t mean it’s good to use them so hot. Li-ion is damaged by heat. The more you heat the cells, the faster they die.
In the world of rechargeable batteries, the lithium-ion type lasts longer than most. Most 18650 cells are rated for between 300 and 500 cycles. This means that your cell can charge up to 4.2 volts and discharge up to 2.5 – 2.8 volts a maximum of 300 to 500 times without too much loss of performance.
But once the first signs of wear appear, the deterioration has started and will only get worse from there. Your 18650 mod battery – or any other vape battery for that matter – should be free from wear, defects and damage. It is recommended to replace the battery if you notice signs of physical damage.
The outer shell serves to protect the battery case and to form a barrier between the metal case and any possible external contact. If the battery case is damaged (frayed, torn, torn, etc.), it may cause a short circuit. Using a battery in this condition is extremely dangerous!