Which type of rechargeable cells is commonly used in many consumer portable products?

The use of lithium-ion cells has become prevalent in many consumer portable products due to several significant advantages they offer. One of the main benefits is their high energy density, which allows for a greater amount of electrical energy to be stored in a relatively small and lightweight package. This characteristic is especially important in portable electronics, where size and weight are critical factors.

Lithium-ion cells also have a low self-discharge rate, which means they can hold their charge for an extended period when not in use. This is advantageous for consumers who may not use their devices frequently but still expect them to perform well when needed. Additionally, these cells support a higher number of charge and discharge cycles compared to alternatives, making them more durable and cost-effective over time.

In terms of performance, lithium-ion cells deliver a consistent voltage output throughout their cycle, providing devices with reliable power. This efficiency contributes to the longer-lasting operation of devices such as smartphones, laptops, and tablets, which demand dependable and potent energy sources.

While other types of rechargeable cells, such as nickel-cadmium, lead-acid, and nickel-metal hydride, do have their applications, they generally do not match the overall efficiency, energy density, or lifecycle performance that lithium-ion cells provide, making