Basic introduction to fast charging, full charging, and trickle charging

First, the basic introduction of fast charging, full charging, trickle charging

In fact, the iPhone and the other products such as MAC and iPod use lithium batteries. Accurately, it should be a lithium-ion polymer battery, which has higher power density than nickel batteries. Since lithium is the lightest metal, this battery is lighter in weight and longer in life. Lithium-ion polymer batteries can be charged at any time, unlike nickel batteries, which must be fully charged and discharged each time to ensure optimum performance. The reason why Apple chooses lithium battery is not only because of its performance, but also because it is smaller than the traditional battery (3.6V400mAh capacity, its thickness can be as thin as 0.5mm).

1. If you use the iPhone’s own charger to charge, when the iPhone icon shows 100% power, it is the end of fast charging. In fact, this time the charge is only 80%. During this period, the current is basically stable and the voltage is always floating.

2. After the power is 100%, continue charging. About 2 hours is the “full charge” time. When you charge 100% daily, you can continue to charge for about 2 hours. During this period, the voltage is basically stable and the current is lower.

So, what is trickle charge? That is, the battery is charged at a very low current. But the arguments are different. The first is that lithium batteries are not nickel batteries and do not require “trickle charge”; the other is the opposite.

1. Under normal circumstances, only fast charging is required, that is, when the power indicator of the iPhone is 100%.

2. Fully charged to ensure that the battery is fully charged.

3, in order to make the battery more durable, it needs maintenance, we need to do a trickle charge every month.

It is also worth noting that although the iPhone uses a lithium polymer battery, it is not distinct from a lithium ion battery. It is generally believed that nickel-cadmium, nickel-hydrogen, lithium-ion, and polymer lithium-ion batteries are four different types of batteries. In fact, the positive and negative electrodes and electrolytes of lithium-ion batteries and polymer lithium-ion batteries, and the working principle and the use of liquid electrolytes. Like lithium-ion batteries, only the diaphragm and packaging materials are different.