A rechargeable battery is used to power many devices, from smartphones to automobiles. Different batteries are installed in phones, depending on manufacturing technology and capacity. Previously, the earliest devices installed nickel-cadmium power sources, which have many disadvantages. For example, the presence of toxic substances in the composition, the high cost of production, and rapid wear and tear.
Nickel-metal hydride batteries replaced nickel-cadmium batteries. Their composition no longer contained toxic substances. They also lacked the pronounced “memory effect”. However, these batteries also had serious drawbacks, including the high cost of chargers. Subsequently, lithium-ion and lithium-polymer batteries began to appear. They can be found in many modern phones.
When it comes to smartphones, the batteries installed in them can be removable and non-removable. As the name suggests, the first type of battery can be removed by the user by removing the back cover from the phone. In the case of non-removable batteries, you can remove them only through a partial disassembly of the device. The second type of battery, by the way, is installed in almost all modern smartphones.
