Current-voltage relationship of battery series-parallel connection

According to the query and non-network, when connected in series, the voltage is added and the current is constant; When connected in parallel, the voltage remains constant and the current increases. The parallel connection of batteries is to connect several batteries through their positive and negative poles, so that they can output current at the same time, which shows the characteristics of low voltage and high current in the circuit. The main difference between series and parallel batteries is the difference in output voltage and current. The output voltage of series battery is equal to the sum of all batteries, and the output voltage of parallel battery is equal to the voltage of single battery, but parallel battery can provide greater output current.