Battery Recommendations for Cordless Vacuum Cleaners

The operating principle of a vacuum cleaner involves a motor driving blades to rotate at high speed, creating negative air pressure in a sealed casing to suck up dust. Cordless vacuum cleaners perform this function without needing a power cord, relying on an internal battery to keep the device running. This eliminates the need to find power outlets and reduces the risk of tripping over wires, making it safer for households with children.

Battery Type for Cordless Vacuum Cleaners：

Cordless vacuum cleaners typically use power lithium-ion batteries, which consist of multiple 18650 lithium-ion cells connected in series and parallel to form a battery pack. These batteries come with protection circuits that prevent overcharging, over-discharging, over-current, and short circuits, ensuring safety and stability. On a single charge, these batteries can provide continuous operation for up to 20-40 minutes.

Advantages of Power Lithium-Ion Batteries:

High Energy Density: They offer a high energy density, making them compact and lightweight.

Long Cycle Life: These batteries have a long lifespan, reducing the need for frequent replacements.

Convenience: Their light weight and small size make the vacuum cleaner easy to handle and operate.

These features cater to the needs of vacuum cleaners for a lightweight design, ease of use, and extended battery life, thus avoiding the inconvenience of frequent recharging. This is particularly beneficial for cleaning large areas or dealing with difficult cleaning tasks.

Material Composition:

Negative Electrode Material: Lithium metal or lithium alloy：

Electrolyte: Non-aqueous electrolyte solution.

Lithium-ion batteries can be categorized into lithium-ion batteries and lithium metal batteries based on their materials and electrolytes. Industrial vacuum cleaners are increasingly shifting from lead-acid batteries to lithium-ion batteries due to their numerous advantages.

Advantages of Lithium-Ion Batteries Over Lead-Acid Batteries：

Weight: Lead-acid batteries can weigh from tens to hundreds of kilograms, adding significant weight to the equipment. In contrast, lithium-ion batteries are much lighter.

Service Life: Lead-acid batteries require careful charging and discharging practices to avoid reducing their lifespan. Overcharging or over-discharging can significantly shorten their service life. Lithium-ion batteries, however, have a much longer service life and are more resilient to such issues.

In summary, lithium-ion batteries are the preferred choice for cordless vacuum cleaners due to their light weight, high energy density, long cycle life, and overall convenience, making them ideal for efficient and effective cleaning.