If your mind is still that electric toothbrushes are exclusive to lazy people, then you are totally wrong. The cleaning power of electric toothbrushes is unmatched by manual toothbrushes, and the quality of life brought by electric toothbrushes cannot be used. Money to measure.

　　In fact, many friends are well aware of the benefits of electric toothbrushes, but when they open the shopping website, they are timid and faced with so many products with similar appearance, how to choose the one with the best cost performance? Satisfying durability is what a high-quality electric toothbrush should look like.

　　Everyone should choose the durability and cleaning effect as the main selection criteria when purchasing, and then combine them with personal needs. This issue of Minimalist Jun will analyze these three aspects in depth to solve the confusion when buying electric toothbrushes.

　　First, durability

　　In fact, it is very important to have an electric toothbrush that can stand the test of time. Unless there is no shortage of money, no one wants to spend 10 times more expensive than a manual toothbrush to buy back inferior products, and a high-quality electric toothbrush. It guarantees that no replacement is required for a long time and can save investment costs.

　　The most common cause of electric toothbrush failure is the movement problem, followed by battery bulging and water leakage. What does an electric toothbrush of good quality and high durability look like? We need to start with the movement of the electric toothbrush. , Battery, waterproof level for analysis.

　　1.1 Look at the movement

　　The core part of the electric toothbrush of the movement, if the movement is broken, the electric toothbrush will no longer rotate autonomously, which is basically no different from a manual toothbrush, but it is invisible and inaccessible. Dismantling? Furthermore, even if it is disassembled, it may not be obvious.

　　Generally, everyone only judges the quality of electric toothbrushes by feeling the strength of the vibration of the electric toothbrush and observing the rotating speed. This is unscientific, mainly depends on the manufacturer of the movement. Common movements on the market include domestic movements and German movements.

　　In comparison, it is recommended that everyone start with a movement developed in Germany, which will be more expensive, but the quality is really much better. This is not to say that domestic production is not good, but China's electric toothbrushes started late, and there is still a certain gap between the current maturity of the movement and the manufacturing power.

　　1.2 Look at the rechargeable battery

　　Rechargeable batteries are important components inside electric toothbrushes. If the battery has low automatic discharge and can be recharged many times, it naturally proves that the battery has better performance and the electric toothbrush is more durable. Currently, rechargeable batteries commonly used in electric toothbrushes on the market include nickel-cadmium batteries, nickel-metal hydride batteries, and lithium batteries.

　　Before introducing these three types of batteries, Minimalist will first popularize a professional term in the field of batteries: memory effect. I believe many people have never heard of it. What does it mean to have a memory effect?

　　Generally speaking, a battery with a memory effect must be used up every time before it can be recharged, otherwise it will cause irreversible damage to the battery.

　　Ni-Cad Battery Electric Toothbrush

　　Nickel-cadmium batteries are a kind of DC-powered batteries. Early cell phones used this type of battery. If they are not handled properly during the charging process, serious memory effects will occur. From the perspective of performance, the number of 500 charging cycles is relatively small, and the nickel-cadmium battery has a relatively large self-discharge. It has a self-discharge of 20% per month and is also prone to leaking.

　　Ni-MH battery electric toothbrush

　　The design of nickel-metal hydride batteries is derived from nickel-cadmium batteries, but great progress has been made in improving the memory effects of nickel-cadmium batteries, but the memory effects have not been completely eliminated, and there is a slight memory effect, about 1,000 charging cycles.

　　Lithium battery electric toothbrush

　　It surpasses nickel-metal hydride batteries in terms of battery power, battery energy, and charging speed. Light body and more environmentally friendly properties, more than 2000 times, low self-discharge rate

　　Performance: lithium battery electric toothbrush> Ni-MH battery electric toothbrush> Ni-Cd battery electric toothbrush

　　Although most electric toothbrushes now support long-term placement on wireless charging bases, they can be used as they go, but nickel-metal hydride batteries still have a small memory effect that cannot be ignored, and lithium batteries will be the mainstream of electric toothbrushes in the future. When choosing an electric toothbrush, it is recommended to choose a product that uses a lithium battery that can be recharged more times and has less self-discharge.

　　1.3 Look at the waterproof level

　　When choosing an electric toothbrush, the waterproof rating is the key we have to consider. We often see IPX plus a number expression, which stands for waterproof level.

　　The higher the number, the stronger the waterproof ability. The general waterproof toothbrush is IPX5, which means it can be rinsed. For IPX7 waterproof toothbrush, it can not only be rinsed, but it will not cause much impact after soaking.