Batteries are available in different types, sizes, and makes like rechargeable, non-rechargeable, lead-acid, alkaline batteries, and so on. They can instantly, illuminate devices and can be of great help in unforeseen situations. 

A battery is a combination of one or more electrochemical cells that are used for converting the stored energy into electrical energy. You can also buy custom cell packs from various online resources.

Batteries are very good for emergencies. They are used in headlights, hand lamps, spots, torches, penlights, and other similar appliances. They have high utility and are extremely portable. There are various types of batteries, each of them having different features and utilities. Here is some more information on battery packs and their types. 

Types Of Batteries:

* Sealed Lead Acid Battery – This is also referred to as SLA battery and is rechargeable in nature. In fact, it can remain charged for up to 3 years. It can be of great help as a backup emergency power source. Moreover, SLA batteries are not at all expensive.

* Nickel Cadmium Battery – This is the most popular type and is often called Ni-Cd battery. It is characterized by fast and even energy discharge and is relatively inexpensive. In fact, it is ideal for appliances like toys, audio, and video equipment, and other such appliances which we use in our homes.

* Nickel Metal Hydride Battery – Also known as Ni-MH battery. It has a capacity of 1.2 V – 1200 to 1500 mAh and; extended life of 2300 mAh. It has a 2.5 to 4 hours life. 

The strength of the battery is determined by its size. Apart from these broad categories of batteries, there are subcategories too. Some of the subcategories include VRLA, valve Regulated Lead Acid, Zinc Carbon chloride, Lithium coin cells, high-tech lithium, silver oxide, zinc-air, lithium photo, and so on. 

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