Rechargeable battery laptop battery used 6 big misconduct

Rechargeable battery laptop battery used 6 big misconduct

           

New  laptop battery activation

      Corrupt a: The new laptop battery should be used to charge and discharge cycles to activate the battery performance.

Truth: To be exact, the above statement is not a rumor. Battery from the factory to the user there is a time difference, as short as a month, long six months. For a long time difference laptop battery, the electrode material will be passivated, so the manufacturer recommends that the laptop battery for the first time the best 3 to 5 times the full charge and discharge process, in order to eliminate the electrode material passivation, to achieve the maximum capacity. However, manufacturers usually do not pay attention to remind consumers, here said the full charge and discharge should not be a deep discharge, but should be controlled at 5% to 8% can be. Otherwise, a new laptop battery is likely to be scrapped.

"The first three times" charge

 Misinformed two: When a new laptop battery to buy back, the best three cycles of charge and discharge, charging time should be more than 12 hours, in order to activate the battery maximum efficiency. The company is located in:

 The truth: NiMH batteries in order to achieve the perfect saturation, the need to go through "complementary" and "trickle" process, this time is generally about 5 hours. At present, lithium-ion batteries, "constant current", "constant voltage" charging characteristics of the deep charge time is controlled within 4 hours. Once filled, the internal laptop  battery protection circuit will automatically stop charging, so this approach is neither scientific nor practical significance. The company is located in:

 Someone used to test the phone. After using the charger to fully charge the battery, use the charger to confirm the saturation of the battery. When he found that the battery charger was still charging the battery, it was considered that the battery has not yet reached saturation. In fact, the lack of rigorous testing methods. The reason is that the indicator of the charger is not the only standard for detecting whether it is fully saturated or not. The reference voltage of the charger is not necessarily equal to the reference voltage of the mobile phone. Therefore, when the mobile phone considers the battery saturated, the charger It may not be that, still charge, but if it is filled, it is only known by itself.

Best state

 Misinformed three: As long as the rechargeable lapotp battery is properly used, it will be the best state in a certain period of circulation, to achieve the maximum capacity. The company is located in:

 For example, the early nickel-metal hydride and nickel-cadmium batteries, if properly used and regularly maintained, will reach their maximum capacity at 10 ~ 200 cycles (the capacity of the nickel-metal hydride battery with a capacity of 1000mAh is 100 times the capacity Reaching 1100 mAh). The company is located in:

 The truth: This statement is more common in Japanese product batteries, the cycle characteristics of the technical specifications in the chart can usually be seen. However, for the current mainstream lithium-ion battery, this cycle of peak phenomenon does not exist. Because lithium-ion battery from the factory to scrapped, the performance of its capacity once a cycle less once, never seen the phenomenon of capacity recovery. Some friends may ask, some ThinkPad notebook users through deep discharge, you can restore the battery capacity. In fact it is just a test software error detection only, the actual capacity of the battery did not improve. The company is located in:

Lithium-ion battery in the end there is no best? The answer is in the affirmative, which is related to the change of ambient temperature. Under normal circumstances, lithium-ion battery at 25 ℃ ~ 40 ℃ environment will show excellent performance. And to the low temperature or high temperature, its performance should be greatly reduced. For example, if you use your laptop outdoors in outdoor sunlight, you do not have to use it for a long time in the room.

capacity

Misinformed four: two nominal capacity of the same (for example, 800mAh) battery, if an actual measured capacity of 860mAh, the other for the 805mAh, then the 860mAH must be better than the 805mAh.

Truth: In general, different models (different volume) of lithium-ion battery, the higher the capacity to use the longer the time. If you put aside the volume and weight and other factors, of course, the higher the capacity the better. However, it is not necessary for two batteries with the same nominal capacity (for example, the above example). Because of the actual capacity of the battery, it is likely that the electrode material is added to increase the initial capacity of the material, reducing the material used to stabilize the electrode. The results showed that after the cycle of dozens of times, the piece of high capacity decay rapidly, while the low capacity is still strong. Many domestic manufacturers in order to reduce costs and expand sales, often on the use of such means to produce high-capacity batteries. After using the user six months later you will find that working time is greatly reduced. In short, the cost of increasing capacity is to sacrifice cycle life, manufacturers are not battery materials, it is impossible to really improve the battery capacity

Save the battery

Misconduct 5: If you do not use rechargeable batteries, should be shining a re-save.

The truth: In fact, not just the rumors mentioned above, lithium-ion battery in the end is full of preservation or shine of the preservation will make many people feel confused? The answer to this question is to talk about its inherent flaws, the "aging effect." Lithium-ion batteries in storage for some time, even if not recycled, some of its capacity will be permanently lost, because lithium-ion battery anode and cathode materials from the factory began their failure course. Different degrees of temperature and saturation extent is different, the specific amplitude can be seen in the table.

Thus, the higher the storage temperature, the more fully charged battery, the greater the magnitude of capacity. Therefore, the long-term preservation of lithium-ion batteries, the user should control their power at 40%, and stored at 15 ℃ or lower temperature can be. As for those NiMH and NiCd batteries, this "aging effect" does not exist and can be restored to its original capacity with only a few full charge and discharge cycles after long-term storage.

Full charge after the charge

Misconduct six: When charging the battery, the charge is full after charging for 1 to 2 hours, this will help to enhance the battery saturation.

Truth: laptop batteries generally have over-voltage protection circuit, fully charged will automatically cut off the charging circuit, the power supply for laptop devices only, even if the battery is recharged 10 hours is no effect.

These rumors led to our incorrect understanding of the laptop battery in order to find some ways to damage the battery we do not know, and now you can more reasonable protection of your battery, and if the battery is broken, it can only go back to good Battery Mall to buy a new one, the next must pay attention to the correct maintenance of your battery.