Lithium batteries - safe use and precautions

Lithium Batteries are used in many places in our lives and the safe and correct use of LiFePO4 Battery is often overlooked by many of us.

The battery has certain ambient temperature requirements and cannot be too high or too low. If there are high and low temperature environments where Lithium Batteries resistant to high and low temperature environments can be used, it is generally preferable that conventional batteries operate at normal temperatures. A violent shock or puncture to the battery can cause immediate fire and smoke. Excessive charging and discharging will greatly reduce the life of lithium batteries and the Maintenance Free Battery will be hot. Avoid short-circuiting the positive and negative terminals of the battery. Short-circuiting will cause the battery inside to become hot and easily bulge. This type of steel case is completely enclosed, and without explosion-proof devices, a large amount of gas inside the steel case will seriously cause it to explode. Therefore, please do not use it illegally during use.

When using lithium batteries, it should be noted that the battery goes into hibernation after being left for a period of time. At this time, the capacity is lower than the normal value and the use time is also shortened. However, the Lithium Battery is very easy to activate, as long as after 3-5 normal charge and discharge cycles, the battery can be activated and restored to normal capacity. Due to the characteristics of the lithium battery itself, it has been found that it has almost no memory effect. Therefore, the new lithium battery in the user's mobile phone does not require any special methods or equipment during the activation process. Not only theoretically, but from my own practice, it is best to use the standard method to charge this "naturally activated" method from the very beginning.

There are many arguments for the problem of "activating" lithium batteries: The charge time must be more than 12 hours, repeated three times, to activate the battery. This statement that "the first three charges must be more than 12 hours" is obviously a continuation of nickel batteries (such as nickel-cadmium and nickel-hydrogen). Therefore, this argument can be said to be misinformation to begin with. The charging and discharging characteristics of lithium batteries and nickel batteries are very different, and it can be clearly stated that all the serious formal technical information I have reviewed emphasises that overcharging and overdischarging will affect lithium batteries, especially liquid lithium. Ionic batteries cause great damage. It is therefore best to charge in accordance with standard times and methods, in particular not to charge for more than 12 hours. In general, the charging method described in the mobile phone manual is a standard charging method suitable for the mobile phone.

In addition, the lithium battery phone or charger will automatically stop charging when the battery is full, there is no so-called "trickle charge" of the nickel charger for 10 hours. In other words, when your lithium battery is full, the charger is white. And none of us can guarantee that the characteristics of the battery's charge and discharge protection circuit will never change and that the quality will be perfect, so your battery will be in danger for a long time. This is another reason why we advise against prolonged charging.

In addition, on some mobile phones, if the charger is not removed after a certain period of charging, the system not only stops charging but also starts a discharge-charge cycle. This may be done for the manufacturer's own reasons, but it is obviously detrimental to the life of the battery and the phone/charger. At the same time, long charging takes a long time and often has to be done at night. Due to the nature of China's power grid, the voltage is relatively high and unstable at night in many places. As mentioned above, the lithium battery is very fragile. It is much less tolerant to the fluctuations in charge and discharge characteristics of nickel-acid, and this poses an additional danger. Another aspect that should not be overlooked is that lithium batteries are also not suitable for over-discharging, and over-discharging is also very detrimental to lithium batteries.