Do you Know How to Correctly Use lithium-ion battery

In the phone, whether it is assessed from a technical perspective or from price considerations, the battery is a very important position. Until now, the market is selling the mobile phones, used batteries have basically completed the acer travelmate 7520g battery from nickel to lithium transition. Perhaps because of cell phone battery has just completed a revolution of NiMH batteries to lithium batteries, so there is no uniform understanding of lithium batteries, in many cases, inaccurate statements and practice is quite popular. Therefore, to understand a little knowledge of lithium batteries, grasp the proper use of lithium batteries is necessary.

The use of lithium batteries should be noted that after some time the battery is placed into hibernation, lower than normal capacity at this time, the use of time has also come to shorten. However, lithium batteries can easily activated, as long as after 3-5 times the normal battery charge and discharge cycle can be activated to restore normal capacity. As the battery lithium own characteristics, its decision is almost no memory effect. Therefore, the new lithium battery cell phone users in the activation process does not require special methods and equipment. Not only in theory that, from the practice of my own, from the outset, the standard method of charging that "activation" approach is the best.

For lithium batteries, "activate" problem, many say is: charging time must be more than 12 hours, repeated three times to activate the battery. This "three times before charging to charge more than 12 hours," saying, obviously from the nickel battery (such as nickel cadmium and nickel metal hydride) inherited from the statement. So this argument can be said to misrepresent the start. Lithium and nickel battery charge and discharge characteristics are very different, and can very clearly tell you that I have had access to technical information for all the serious official stressed the overcharge and over discharge will have lithium batteries, especially lithium liquid Ion battery causing great harm. Therefore the best charging method in accordance with standard time and standard charge, especially not for more than 12 hours of super-long charge. Typically, the statement introduced mobile phone charging method is suitable for charging the mobile phone standard method.

In addition, lithium batteries cell phone or battery charger will automatically stop after full charge, there is no nickel-power charger for 10 hours the so-called the "trickle" charge. That is, if your lithium batteries in full, on the white charger is also sufficient. We can not guarantee anyone the battery charge and discharge protection circuit features and never change the quality of safety, so your battery will be at risk of long-term brink. This is also another charge against the chief reason. In addition, on some phones, the charge for more than a certain time, if not remove the charger, this time not only to stop charging system, will begin discharge – charge cycle. Perhaps the makers of this approach has its own purpose, but apparently the battery and cell phone / charger is detrimental to the life terms. At the same time, long charging takes a long time often need to be at night, while the situation of my grid, many parts of the night Dianya are high, and volatile. As already said, the lithium battery is very delicate, and its power than the nickel-resistance in the charge and discharge aspects of fluctuations in the capacity of much less, so this brings additional risk.

In addition, another aspect can not be ignored is also not suitable for Li-ion battery over discharge, over-discharge of the lithium batteries also very unfavorable. This leads to the following questions.

In our forums, often see this argument, because the number of charging and discharging is limited, so it should be possible to run out of phone battery power recharging. But I found one on lithium-ion battery charge and discharge cycle test table, on the cycle life data is as follows:

Cycle life (10% DOD):> 1000 times

Cycle life (100% DOD):> 200 times

Which is the depth of discharge DOD abbreviation. Can be seen from the table, number of charge cycles and the depth of discharge, 10% DOD cycle life than when the 100% DOD for much longer. Of course, if the actual charge equivalent to the relative total capacity: 10% * 1000 = 100,100% * 200 = 200, the latter fully charge and discharge, or better than some, but the previous users of that argument do some amendments: Under normal case, you should have reservation in accordance with the remaining battery power runs out and the principle of full charge, but if your battery is expected in the first two days you can not adhere to the time of the day, you should start charging a timely manner, of course, if you are willing to back the charger to the office has a different matter.

And you need to charge to meet the anticipated upcoming busy communications will lead to an important event, even though the remaining battery power when there is a lot, you also simply Tiqian charge, because you are not really lost, "a" charge cycles life , that is, "0.x" times only, and often this x will be very small.

Remaining battery power runs out and the principle of charging is not want you to go to the extreme. And long charging a very wide spread as saying that "as far as possible the cell phone battery run out, it is best used in automatic shutdown." This is really just practice on nickel batteries, to avoid occurrence of memory effect, unfortunately, it is also spread of lithium batteries on this. It has been because the cell phone battery low warning appears, still do not charge to use the example has been used in automatic shutdown. The results in this example was charging the phone and boot in no response, had to give customer service overhaul. In fact, this is the result of excessive discharge as a result of the battery voltage is too low, so do not have a normal result of the charge and start conditions.

3, the right way on the lithium Dell vostro 18650 battery cell phone

To sum up, I lithium batteries used in mobile phone charging and discharging, the most important tips are:

Therefore, all 12 hours long pursuit of the lithium battery cell phone charger and practices used in automatic shutdown, are wrong.If you used to be done in accordance with an error saying, please correct them in time, perhaps not too late. Of course, cell phones and chargers to protect themselves and control circuit of good quality cases, the protection of lithium batteries is quite assured. Therefore, the charge is the key to understand the rules, in some cases also may make some concessions.For example, you find that the phone must be charged before you go to bed at night, you can also start charging before going to bed. The key is, you should know what the right thing, and do not do it deliberately wrong.