When you connect laptop batteries (cells), they must be identical in voltage and current! A: The batteries can be connected in series. The positive terminal of the first battery to the negative terminal of the second battery is connected, is connected to the positive terminal of the second to the negative terminal of the third, and so on. The voltage of the battery assembly is the sum of the individual batteries. The batteries are connected: + remains unchanged - to + - to + -, etc. The capacity of the battery.
B: The batteries can also be connected in parallel. The positive terminal of the first battery to the positive terminal of the second battery is connected, is connected to the positive terminal of the second to the positive terminal of the third pole of the first battery is connected to the negative terminal of the second battery terminal of the second is to the negative terminal of the third and so on connected . The batteries are connected: + to + to + and - to - to -. In this configuration, the capacity of the sum of the individual batteries and voltage is unchanged. For example, (5) 6V 10AH batteries connected in series offers a comprehensive battery 30 volts and 10AH. Connecting batteries in parallel offers a comprehensive battery of 6 volts and 50Ah. Ordinary car batteries are designed the same way. Six 2-V cells are connected in series to produce a 12V battery. Many Ni-Cd batteries are arranged in the same way.
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