Practical Applications of 18650 Lithium-Ion Batteries in the Field of Smart Home Appliances
Release time：2024-12-02 Click：85
In the wave of innovation in smart homes, 18650 lithium-ion batteries have become the core power sources for
numerous smart devices due to their excellent performance. The 18650 lithium-ion batteries with different
voltages and capacities, like the energy elves of smart devices, are playing out their respective wonderful
application scenarios in the realm of smart homes.
In the smart lighting system of a home, 3.7V 18650 lithium-ion batteries provide ideal power support for motion
sensor lights. Take a common infrared motion sensor night light as an example. It has a 3.7V 18650 battery with a
capacity of about 1500mAh built in. With the coordinated operation of the low-power infrared sensor and energy-saving
LED bulbs, this battery enables the motion sensor light to turn on accurately when a person approaches in a dark environment.
Since it is mostly in standby mode and only works briefly when it senses human movement, this battery can keep the motion
sensor light working continuously for up to one year. This long battery life greatly enhances the convenience of use.
Whether it is for getting up at night in the bedroom or providing automatic lighting in corridors, staircases and
other areas, it can function stably, adding a touch of thoughtfulness and safety to home life.
For those who are concerned about sleep quality, smart sleep monitors are an important part of the smart home health
management field. Such devices are usually powered by 3.7V 18650 lithium-ion batteries. For example, a certain brand of sleep
monitor is equipped with a 2200mAh 3.7V battery. During sleep, it needs to continuously monitor multiple data such as the heart
rate, breathing rate, and sleep status (light sleep, deep sleep, rapid eye movement phase, etc.) of the human body, and transmit the
data to mobile phones or other smart terminals via Bluetooth or other wireless means. The stable voltage output of
the 3.7V 18650 battery ensures that the monitor can work accurately and uninterruptedly throughout the entire sleep
cycle (usually 6 - 8 hours). Moreover, thanks to the long cycle life of the battery, it can still maintain reliable performance
even after months or even years of frequent use, providing a strong guarantee for users to track changes in sleep quality over
the long term, helping people better understand their own health conditions and adjust their living habits.
Smart electric clothes drying racks have brought great convenience to modern families for drying clothes. Their functions
such as lifting, air drying, and drying all rely on a stable power supply, and the 11.1V 18650 lithium-ion battery pack
(usually composed of 3 3.7V 18650 batteries connected in series) is the power core. Take a mainstream smart electric clothes
drying rack as an example. Its equipped 11.1V 3500mAh battery pack can easily meet the needs of frequent daily lifting
operations when fully charged. Even when the air drying or drying function is turned on simultaneously, it can continue to
work for several hours. For example, after washing a large number of clothes, the user can control the clothes drying rack to
descend through the remote control or mobile app, hang the clothes, and then raise it and turn on the drying function to help
the clothes dry quickly. During this process, the 11.1V 18650 battery pack, relying on its good charge-discharge performance,
stably provides power to the motor, fan, heating element, etc., ensuring that the entire drying process proceeds smoothly
without being restricted by the power cord. It can be flexibly installed on the balcony or other locations, providing more
choices for the layout of the home space.
Home theater projectors occupy an important position in the smart home entertainment system. For portable smart
projectors, the 11.1V 18650 lithium-ion battery pack is the key to realizing the dream of mobile movie watching.
For example, a well-known brand of portable projector uses an 11.1V 4500mAh 18650 battery pack. It can provide
enough electricity for the projector to support playing a two-hour high-definition movie without connecting to an
external power source. Whether it is sharing an outdoor movie feast with family and friends during camping or creating a
private theater-like movie-watching experience in the bedroom, as long as it is fully charged in advance, you can get rid
of the trouble of cables and freely choose the projection position. During the projection process, the battery pack
continuously supplies power to the high-brightness bulb, image processing chip, and cooling fan of the projector,
ensuring clear images, vivid colors, and synchronized sound effects, allowing users to immerse themselves in the
wonderful world of movies anytime and anywhere.
In the field of smart home security, pan-tilt cameras are responsible for real-time monitoring of the safety of the home
environment. They need to rotate flexibly in different directions and ensure clear image transmission, which requires a
relatively high power supply. Some pan-tilt cameras use 24V 18650 lithium-ion battery packs (usually composed of
multiple 3.7V 18650 batteries connected in series and in parallel). For example, a camera with high-definition image quality,
night vision function, and remote control of pan-tilt rotation is equipped with a 24V 5000mAh 18650 battery pack. In the
normal monitoring mode, this battery pack can support the camera to work continuously for several days. When an abnormal
situation is detected, such as someone breaking in, the camera can quickly start high-definition shooting, infrared night vision,
and send alarm information to the user's mobile phone. At this time, the battery pack can provide an instantaneous large current
output, ensuring that each functional module works in coordination and not missing any key information. Even during a power
outage at home, the pan-tilt camera can still rely on the 24V 18650 battery pack to continue to stand guard and safeguard
the safety of the home.
For smart home users who love gardening, smart gardening irrigation systems are a great helper for taking care of the garden.
The controllers in these systems are responsible for automatically controlling the opening and closing of the irrigation valves
according to the soil moisture, weather conditions, and preset irrigation plans. The 24V 18650 lithium-ion battery pack provides
a stable power source for the controllers. Take a controller of a smart irrigation system covering a medium-sized garden as an example.
It is equipped with a 24V 6000mAh 18650 battery pack. In the corners of the garden or the courtyard where there is no external
power supply, this battery pack can ensure that the controller runs stably throughout a growing season (several months).
It can accurately drive the solenoid valve to act, control the water flow rate and irrigation time, and at the same time,
connect with the smart terminal indoors through a wireless module, allowing users to adjust the irrigation strategy at any time.
Whether it is the daily timed irrigation or the intelligent regulation according to the real-time weather changes (such as automatically
pausing the irrigation after rainfall), the 24V 18650 battery pack can provide continuous and reliable power support for the controller,
keeping the garden always vibrant.
In the context of the increasing pursuit of green, environmental-friendly, convenient and efficient urban travel, smart electric
bicycles have become a popular choice. Many conversion kits for electric bicycles use 48V 18650 lithium-ion battery packs.
For example, a smart kit suitable for converting ordinary bicycles is equipped with a 48V 10Ah (composed of multiple 18650 batteries)
battery pack that can provide strong assistance to the bicycle. During the riding process, when the user pedals, the battery pack provides
power to the motor through the motor controller. According to different road conditions and riding needs, the motor can output
different levels of assistance. Take a 20-kilometer commute as an example. On a flat road, the battery pack combined with the motor
assistance can enable the rider to reach the destination easily and quickly, and the cruising range is sufficient to meet the daily urban
travel needs. Meanwhile, the 48V 18650 battery pack has good charging performance and can be fully charged within a few hours,
making it convenient for users to charge it at night or during their break time to prepare for the next trip.
With the increasing importance that families attach to the utilization of renewable energy and dealing with sudden power outages,
small smart home energy storage systems are gradually entering households. Some of them use 48V 18650 lithium-ion battery packs
as the energy storage unit. For example, a 5kWh household energy storage system has its core energy storage part composed of a
48V 18650 battery pack. During the day when there is sufficient sunlight, the solar panel stores the electricity into the 48V 18650 battery pack.
When night comes or there is a power outage, the battery pack can provide power to important electrical appliances in the home, such as
refrigerators, lighting fixtures, routers, etc. Through a smart energy management system, it can automatically adjust the output voltage and
current according to the load situation, ensuring the stability and efficiency of the power supply. For example, during a power outage, it can
give priority to ensuring the continuous operation of the refrigerator to prevent food from spoiling, while providing power to some lighting
fixtures to maintain the basic lighting needs of the home, allowing the family to maintain a certain degree of normal life order even during a
power outage.
In some high-end smart mobility tools, such as all-terrain electric mobility scooters, 96V 18650 lithium-ion battery packs are applied to meet their
high-power and long-range requirements. These electric mobility scooters are usually used for driving on outdoor complex terrains and require strong
power to climb slopes, cross rough roads, etc. For example, an all-terrain electric mobility scooter designed for outdoor adventure enthusiasts is equipped
with a 96V 15Ah 18650 battery pack. This battery pack can provide sufficient electricity for the high-power motor of the mobility scooter, enabling it to
output strong torque when climbing slopes and reach a relatively high speed on flat ground. In terms of range, according to different driving modes
(such as economy mode, sport mode), it can support the mobility scooter to travel about 50 - 100 kilometers, which is sufficient to meet the needs of
users for a day of outdoor adventure activities. Meanwhile, the 96V 18650 battery pack's battery management system can monitor the battery status in
real time, ensuring the safety and stability in a high-voltage, large-current working environment.
In the field of smart warehousing and logistics, the efficient operation of small industrial-grade smart warehouse handling robots depends on a stable
and reliable power source. Some of these robots use 96V 18650 lithium-ion battery packs. For example, a small robot used for handling goods in a
warehouse is equipped with a 96V 20Ah 18650 battery pack that provides it with lasting power. In the warehouse environment, the robot needs to start,
stop, accelerate, turn frequently, and carry a certain weight of goods for handling operations. The 96V 18650 battery pack can meet the high-power
requirements of the robot under these complex working conditions, ensuring that its motor can run stably and the handling robotic arm can move precisely.
Moreover, due to the long cycle life characteristic of the 18650 battery, this battery pack can withstand the test of long-term and high-intensity use,
reducing the maintenance cost and downtime of the robot, and improving the operation efficiency of the entire warehousing and logistics system.
In conclusion, the 18650 lithium-ion batteries with different voltages and capacities ranging from 3.7V to 96V have demonstrated extremely
extensive application scenarios in the field of smart homes. With their respective unique performance advantages, they provide a solid power
guarantee for the realization of diverse functions of smart home devices, continuously promoting the transformation of smart homes from
concepts to reality and deeply integrating into people's daily lives. Moreover, with the continuous progress and innovation of technology,
the application potential of 18650 lithium-ion batteries in the field of smart homes will surely be further explored and expanded, creating a new
experience of smarter, more convenient and more comfortable home life for us.
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