Why USB rechargeable batteries so popular

USB rechargeable batteries have become popular due to their convenience and energy efficiency. They provide a greener solution to using traditional disposable batteries, which contribute to environmental pollution. USB

rechargeable batteries can be easily recharged using a USB cable that can be plugged into a computer, mobile phone charger, or power bank. They can be reused multiple times, making them cost-effective in the long run.

Additionally, USB rechargeable batteries are lightweight and portable, making them an ideal choice for travel or outdoor activities.

The models of USB rechargeable batteries 

1. Lithium-ion (Li-ion) USB rechargeable batteries: These batteries are commonly used in portable devices such as smartphones, tablets, and laptops. They offer high energy density, low self-discharge, and a relatively long lifespan.

2. Nickel-metal hydride (NiMH) USB rechargeable batteries: These batteries are commonly used in cameras, remote controls, and other small electronic devices. They offer a higher capacity than Li-ion batteries but have a lower energy density and shorter lifespan.

3. Nickel-cadmium (NiCd) USB rechargeable batteries: These batteries are less commonly used due to their potential environmental hazards. They offer a lower capacity than NiMH batteries but have a higher tolerance for extreme temperatures and are more cost-effective.

4. Zinc-air USB rechargeable batteries: These batteries are commonly used in hearing aids and other medical devices. They rely on oxygen from the air to operate and have a longer lifespan than other rechargeable batteries.

5. Carbon-zinc USB rechargeable batteries: These batteries are not commonly used due to their lower capacity and shorter lifespan. However, they are still widely available and can be useful in low-power devices such as flashlights and remote controls.