14500 lithium batteries, manufacturer of 14500 lithium batteries.

14500 lithium batteries are lithium batteries with a diameter of 14mm and a height of 50mm. According to the material of the battery cells, they are divided into lithium iron phosphate batteries and lithium cobalt oxide batteries. The voltage of lithium cobalt oxide battery is 3.7V, and the voltage of lithium iron phosphate battery is 3.2V. Due to its identical appearance and size to AA 5 # batteries, one 14500 lithium battery and one space bucket can replace two AA batteries. Compared to nickel hydrogen rechargeable batteries, lithium batteries have the advantages of light weight, less self discharge, and superior discharge performance. Therefore, they are widely used by photography enthusiasts in digital cameras and electronic cigarettes, replacing nickel hydrogen rechargeable batteries. What is the battery life? It should be possible, depending on the type of appliance you use and the frequency, intensity, and duration of your use. Its nominal capacity is 1600mAh.

Gunagzhou BATTSYS Company, a leading manufacturer of 14500 lithium batteries in the industry, can customize various specifications of 14500 lithium battery packs according to customer needs. Here are three common questions about 14500 lithium batteries:

Due to the voltage of lithium batteries being (2.5V --3.7V), over discharge or overcharging can damage the battery, so those with protective plates can protect the battery. I don't think so. Due to the fact that the 14500 battery with a protective plate is about a few millimeters higher than a regular No. 5 battery, some camera covers cannot be closed, and the battery contacts that can be closed can also affect the camera. Over time, the elasticity will decrease, causing poor contact. Another protective board cannot maximize the energy efficiency of the battery, as the protective circuit is in 2. When the power is automatically cut off at 5V, the camera will suddenly lose power and may not automatically shut down, which may cause damage to the camera.

*The voltage range of a camera is generally between 2.4V and 4.2V

So the camera will often shut down when the voltage reaches 2.4V. The camera has a choice of battery type (alkaline, nickel battery, lithium battery), and the shutdown voltage is different for different battery types. As long as a lithium battery is selected, its shutdown voltage is 2.6V. A 2.5V battery without a protective plate is a safe voltage, so there is no problem of over discharge, and it can also maximize the energy efficiency of the battery. (Based on one's own camera)

14500 overcharging issue
After overcharging the lithium battery cell to a voltage higher than 4.2V, it will begin to produce side effects. The higher the overcharging voltage, the higher the danger. When the voltage of a lithium battery cell exceeds 4.2V, less than half of the lithium atoms remain in the positive electrode material. At this time, the storage cell often collapses, causing a permanent decrease in battery capacity. If charging continues, as the storage cell of the negative electrode is already filled with lithium atoms, subsequent lithium metal will accumulate on the surface of the negative electrode material. These lithium atoms will grow dendritic crystals from the negative electrode surface towards the direction of lithium ions. These lithium metal crystals will pass through the diaphragm paper, causing a short circuit between the positive and negative poles. Sometimes, the battery explodes before a short circuit occurs. This is because during overcharging, materials such as electrolyte will crack and produce gas, causing the battery casing or pressure valve to bulge and rupture, allowing oxygen to enter and react with lithium atoms accumulated on the negative electrode surface, leading to an explosion.

Therefore, when charging lithium batteries, it is necessary to set a voltage limit in order to simultaneously consider the battery's lifespan, capacity, and safety. The ideal upper limit of charging voltage is 4.2V. When discharging lithium batteries, there should also be a lower voltage limit. When the voltage of the battery cell is below 2.4V, some materials will begin to be damaged. Due to the self discharge of the battery, the voltage will decrease as it is discharged for a long time. Therefore, it is best not to discharge it at 2.4V before stopping. During the period of discharging from 3.0V to 2.4V, the energy released by lithium batteries only accounts for about 3% of the battery capacity. Therefore, 3.0V is an ideal discharge cutoff voltage. During charging and discharging, in addition to voltage limitation, current limitation is also necessary. When the current is too high, lithium ions do not have time to enter the storage cell and will gather on the surface of the material.

Guangzhou Battsys Co., Ltd (NEEQ:837375), was founded in 2006, which is a join-stock high-tech enterprise engaging in ODM and OEM , specially for customized and diverse research&production of lithium-ion battery，BATTSYS annual production capacity is tens of millions battery cells. The products are exported to dozens of countries & regions such as Europe, America & Asia etc.