Rechargeable batteries are of various types. The purpose of their creation depends on the range of equipment with which they can be used. They were originally developed as an alternative to conventional batteries.
The main purpose of rechargeable batteries is to provide power to a specific device without being connected to AC power. To do this, the batteries must store a charge and be able to keep it until the moment the device is used directly. Unlike conventional batteries, rechargeable batteries have the ability to recover their charge. Many rechargeable batteries have been created as alternatives to conventional batteries. The reusability makes these devices easier to use and more economical.
A storage battery is a set of batteries connected in parallel or in series. In most cases, a serial connection is made. This method is necessary to increase the final output voltage. This allows the use of a group of batteries, the output voltage of each of which is significantly lower than the total.
The parallel connection method is sometimes used. This arrangement improves the overall battery capacity. Typically, parallel connection is used to create rechargeable batteries for those devices that need to provide long-term operation without recharging.
Nowadays, all mobile devices use batteries for their work. These include mobile phones, laptops, communicators, tablet PCs, mp3 players, and so on. In most cases, rechargeable lithium-ion batteries are used. Particularly important characteristics of batteries include the following parameters: capacity, voltage, efficiency and service life.
It is very important to understand that rechargeable batteries have a certain resource that is wasted during use. So, for example, the batteries of mobile computers become unusable after about 2-3 years of active use. Some batteries have their own controllers that prevent the device from overheating and monitor the battery level.
