The Correct Method of Lithium Battery Series

Portable equipment that requires high power is generally powered by batteries that are connected together by two or more cells. If you use Gaodianya's battery, the size of the conductor and switch can be made very small. Middle-price industrial power tools generally use batteries with a voltage of 12V to 19.2 V; Advanced power tools use batteries with a voltage of 24V to 36V to obtain greater power. The automotive industry eventually increased the ignition battery voltage of the starter from 12V(actually 14V) to 36V, or even 42V. These batteries consist of 18 sections connected in series with lead-acid cells. In early hybrid cars, batteries used to supply electricity had a voltage of 148V. The batteries used in the newer models have a voltage of up to 450V to 500V, most of which are nickel-based chemical cells. A nickel-metal hydrogen battery with a voltage of 480V is made up of 400 nickel-metal hydrogen cells in series. Some hybrid cars have also been tested with lead-acid batteries.

42V's car battery is expensive, and it will generate more arcs on and off than 12V batteries. Another problem with the use of Gaodianya batteries is that it is possible to encounter the failure of a certain section of the battery pack. It's like a chain. The more batteries you put together, the more likely it is to happen. As long as there is a problem with a single battery, its voltage will decrease. In the end, a section of "disconnected" batteries may interrupt the transmission of current. It is not easy to replace "bad" batteries because old and new batteries do not match each other. In general, the capacity of new batteries is much higher than that of old batteries.

Let's look at an example of a battery. The third cell produces only 0.6 V of voltage, not the normal 1.2 V(Figure 1). As the working voltage drops, it reaches the critical point of discharge end faster than the normal battery, and its service time is also shortened rapidly. Once the device is cut off due to low voltage, the remaining three cells that are still intact cannot send out the stored power. At this time, the third quarter battery also presents a large internal resistance. If there is also a load at this time, then the output voltage of the entire battery chain will be greatly reduced. In a set of serial batteries, a poorly performing battery, like a plug to a water pipe, generates huge resistance and prevents current flow. The third cell will also short-circuit, which will reduce the terminal voltage to 3.6 V, or disconnect the battery chain and cut off the current. The performance of a battery pack depends on the performance of the worst cell in the battery pack.

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