How to correctly use lithium batteries for robotic vacuum cleaners.
Robotic vacuum cleaners, also known as intelligent vacuum cleaners or robotic vacuum cleaners, are generally robots capable of completing tasks such as cleaning, vacuuming, and wiping the floor. They can all be collectively referred to as floor cleaning robots. The intelligent sweeping robot can automatically complete the floor cleaning work in the room with certain artificial intelligence. It uses brushing and vacuum methods to absorb floor debris into its own garbage storage box, completing the floor cleaning. How does it work? It mainly works by scanning the overall size of the room, creating a fixed layout of the room in the robot's microcomputer, including the size of the room, the placement of furniture in the room, and then using a satellite positioning system to develop a work plan.
The robotic vacuum cleaners are designed to be wireless due to their irregular timing and unrestricted area of operation. This requires a "lithium battery" to supply it with electricity to maintain normal operation. The requirements for "lithium batteries" in robotic vacuum cleaners are particularly high, so the upgraded version of robotic vacuum cleaners now basically uses "polymer lithium batteries" because polymer lithium batteries have higher safety, lighter weight, higher voltage, and much higher energy density than nickel hydrogen batteries and lead-acid batteries of the same volume. They also have no charge discharge memory effect and can be charged as needed, with a service life of over 700 times.
Although
lithium batteries for robotic vacuum cleaners have high capacity and long cycle life, improper use of lithium batteries can reduce their lifespan and capacity density. When using lithium batteries for robotic vacuum cleaners, the following points should be noted:,
1、 Do not over discharge
The lithium battery discharge platform has a certain amount of time, which depends on the power of the robot. If the robot continues to work with 20% of the lithium battery remaining and runs out of power until the robot stops working, it will cause excessive discharge of the lithium battery, which often reduces its service life. Replacing a lithium battery on a typical robot is quite expensive, so it is important to pay attention to proper maintenance.
2、 Use the manufacturer's original charger
For charging lithium-ion batteries, a dedicated lithium-ion battery charger should be used. Lithium ion batteries are charged using CC/CV (constant current+constant voltage), which means that they are first charged with a constant current. When the voltage reaches 4.2 V * n, they switch to constant voltage charging until the current decreases to 0.01C, at which point charging stops.
3、 When not in use for a long time, the lithium battery should be charged to 95% before being stored, and should not be left empty
The storage, transportation, and shipment of lithium batteries are all in a semi charged state with a voltage of approximately 3.83V. Full charge (4.18-4.19V) is prone to safety accidents, and polymer lithium battery soft packs may inflate. The dead state (below 3.0V) causes significant damage to the battery, and the electrode material lattice collapses severely. After looking at the following set of data, it becomes clear:
The percentage is the percentage of the saturation state at that time relative to the initial value
Storage temperature 40% charging status 100% charging status
0 degrees 98% (after one year) 94% (after one year)
25 degrees 96% (after one year) 80% (after one year)
40 degrees 85% (after one year) 65% (after one year)
60 degrees 75% (after one year) 60% (after three months)
Obviously, if you want to store the battery for a long time, it is most ideal to place it in a dry and low-temperature environment with a remaining battery capacity of about 40%. Of course, it is best to take out the battery once a month to ensure its good storage condition and prevent complete loss of battery power and damage to the battery.
4、 When storing lithium batteries, attention should be paid to keeping them in dry air. Theoretically, it is better to keep the temperature lower. However, considering the current situation of civilian batteries, most manufacturers' low-temperature batteries will damage the internal structure. Therefore, it is still advisable to store them at room temperature of around 20 degrees Celsius.
Alright, the above is the correct usage method of
lithium batteries for robotic vacuum cleaners. We hope you can help everyone further understand lithium batteries
