Battery packs are divided into series and parallel. Parallel battery packs require the same voltage of each battery, and the output voltage is equal to the voltage of a battery. Parallel battery packs can provide stronger current. There are no excessive requirements for series battery packs.
After the batteries are connected in series, the voltages are added and the currents are equal, which increases the voltage; the batteries are connected in parallel and the voltage is unchanged (provided that the batteries with the same voltage can be connected in parallel, otherwise the high voltage will charge the voltage too low, if the difference is too large There is also danger), the current is equal to the sum of the batteries, which can often be considered as increasing the battery capacity and providing a larger current.
As long as the capacity of the battery is guaranteed, a series battery pack can provide a higher voltage.
Battery packs are widely used in our lives.There are serial battery packs in TV remote controls, electronic toys, and flashlights.