Knowing the battery knowledge: Talking about the memory effect of the battery
The memory effect is that the effect of the battery crystallization due to the use of the battery is generally only produced in nickel-chromium batteries, nickel-hydrogen batteries are less, and lithium batteries do not. The reason for this is due to the incomplete partial charging and discharging of the battery. This will reduce the temporary capacity of the battery, resulting in shorter talk time.
The battery should be used until it is charged and recharged, or discharged on a charger with a discharge function. Do not recharge the battery with electricity to avoid the memory effect. To completely discharge the battery, you must put the battery in standby for about 24 hours. After fully discharging, fully recharge the battery. Capacity, unless the battery is damaged. However, to avoid this phenomenon, it is recommended that consumers choose nickel-metal hydride batteries or lithium batteries.
The battery memory effect refers to the reversible failure of the battery, that is, the performance that can be restored after the battery fails. The memory effect is that the battery automatically maintains this specific tendency after being subjected to a specific duty cycle for a long time. This is first defined in nickel-cadmium batteries. Nickel-cadmium bag batteries have no memory effect, and sintered batteries have a memory effect. Now nickel metal hydrogen (commonly known as nickel-hydrogen) batteries are not bound by this memory effect definition.
the reason
Because of the improvement of the modern nickel-cadmium battery process, the above memory effect has been greatly reduced, and another phenomenon replaces this definition, which is the "lattice" of nickel-based batteries. Generally, nickel-cadmium batteries are subject to these two types. The combined effect of the effect, while the nickel-hydrogen battery is only affected by the "lattice" memory effect, and the impact is smaller than that of the nickel-cadmium battery.
Eliminate memory effect
In practical applications, the method of eliminating memory effects has strict specifications and an operational process. Improper operation can be counterproductive.
Nickel-cadmium batteries For nickel-cadmium batteries, the normal maintenance is regular deep discharge: an average of one month (or 30 cycles) for a deep discharge (discharge to 1.0V / per section, foreigners called exercise), usually used is Try to use light batteries or use shutdown to ease the formation of memory effects, but this is not exercise, because the instrument (such as mobile phone) will not use 1.0V / every section to shut down, must be dedicated equipment or lines to complete Fortunately for this work, many NiMH battery chargers have this feature.
For nickel-cadmium batteries that have not been exercised for a long time, due to the accumulation of memory effects, it is impossible to use exercise for capacity recovery. In this case, a deeper discharge (foreigner called recondition) is required, which is a battery with a small current for a long time. A process of discharging to 0.4V per section requires professional equipment.
How to avoid battery memory effect
The battery of the mobile phone should be used to recharge the battery, or discharge it on the charger with discharge function. Never recharge a battery that has electricity to avoid memory effects. To completely discharge the battery, the battery must be placed in standby for about 24 hours. After it is fully discharged, it can be fully charged. After so many cycles, the battery capacity can be restored unless the battery is damaged. However, to avoid this phenomenon, it is recommended that consumers buy nickel-metal hydride batteries or lithium batteries.
Carpet Jacquard Fabric Machine
All the electronic jacquard machines under this carpet jacquard fabric machine classification could weave various of patterns stably and sufficiently. These jacquard looms are applicable to various of textile weaving looms, such as rapier loom, air jet loom, water jet loom, shuttle loom, projectile loom with any reed width. These digital jacquard machines are compatible with most brand of textile weaving machinery, just like ITEMA, SOMET, SMIT, PICANOL, DONIER, RIFA, TOYOTA, TSUDAKMOA etc.
Carpet Jacquard Fabric Machine,Jacquard Loom Weaving,Jacquard Automatic Loom Machine,Jacquard Lace Machine
JIANGSU S&S INTELLIGENT SCIENCE AND TECHNOLOGY CO., LTD , https://www.ssjacquard.com