How do you determine the true capacity of lithium battery？

How can you find a product that meets the specifications in so many lithium batteries? We just have to learn some skills!

Today, we are going to give you a lesson about lithium battery. We hope that you can get some skills after learning, so as to buy regular, safe and durable lithium battery products. From this, we will also learn the lithium battery maintenance skills don't run out of the power to recharge!

First, How to correctly identify the capacity and power of the battery?

In the following, we take lithium battery for PSP as an example to illustrate:

We can learn that the power of the battery is the standard to measure the actual battery life, and the pure MAH unit (power unit) can't explain the problem at all. However, ordinary businessmen and even the media are accustomed to using the data of MAH as the basic characteristics of the battery, which leads to confusion about the difference between the battery capacity and the actual battery life.

Second, How to identify the virtual capacity of lithium battery products?

Below, we continue to use lithium battery as an example explain the PSP.PSP original batteries with lithium POLYMER batteries (LI - POLYMER), the thickness is thinner than the common batteries on the industry. We're talking about lithium polymer batteries, which are actually lithium batteries, and older lithium ion batteries. By contrast, both lithium Polymer battery Advantages as follows:

1, using solid electrolyte instead of the liquid electrolyte, compared with the liquid lithium ion battery, Polymer lithium ion battery has the advantages of thinness, arbitrary area and arbitrary shape, and will not produce leakage and combustion explosion and other safety problems, so it can be made of aluminum plastic composite film battery shell, so as to improve the specific capacity of the whole battery.

2, polymer lithium ion battery can also using polymer as the anode material, its quality than the energy will be more than 50% higher than that of the liquid lithium ion battery.

3, polymer lithium ion battery in the working voltage, charge and discharge cycle life than lithium ion batteries have improved.

Here, let's take a look at the battery of common sense in the industry:

In addition, there is a cylindrical lithium battery (no. 18650 battery, that is, 8mm diameter, 650mm length, working voltage of 3, 7V), its maximum capacity is 2400mAh (generally 1800 ~ 2200mAh), both are common lithium batteries, but 18650 battery is often used in laptops, here is not detailed explanation. 18650 lithium batteries are 3.7v, 1800 ~ 2400 MAH.

Third, What is the correct lithium battery charging habit?

As for the charging habit of lithium battery, Google or BAIDU will give you two answers. One is to use up as much as possible to recharge, the other is of course a random charge. So which of these two answers is correct? Some common sense we have to know first.

Users' charging habits for lithium batteries depend on the memory effect of the battery. Before developed lithium-ion batteries, such as nickel, zinc, nickel cadmium, nickel metal hydride materials made of rechargeable batteries have a strong memory effect. If the battery for a long time under the condition of the remaining power more repeat charging, will cause the battery can store charge less and less. But lithium battery after launch, memory effect is greatly reduced, experts generally use can ignore this kind of words to express.

Although can be ignored, but the repeatable of lithium-ion batteries charging times is limited, usually 500 to 500 times. Therefore, maintenance has become a key factor in the life of lithium batteries. On the basis of the characteristics of lithium battery, we put the maintenance skills due to the following:

1, Do not let the lithium battery charge less than 3% (it is recommended to start charging under 20%).

2, lithium battery power is 1% can be a deep discharge, must avoid deep discharge. Because deep discharge directly affects the life of lithium battery.

3, long-term (more than 3 months) do not use lithium battery, should be charged to 50% of the power to save.

The page contains the contents of the machine translation.