For effective electrical performance, what configuration should batteries be connected in?

Connecting batteries in parallel is essential for effective electrical performance when the goal is to increase the overall capacity while maintaining the same voltage level. In a parallel configuration, each battery provides its full current output to the circuit, allowing for greater total amperage. This is particularly beneficial in scenarios where extended run-times are necessary, as the total capacity (measured in amp-hours) increases with each additional battery connected in parallel.

Moreover, parallel connections also enhance the reliability of the system. If one battery fails, the remaining connected batteries can still deliver power, ensuring that the operation continues uninterrupted. This is in contrast to a series configuration, which would increase the voltage but can lead to issues if one battery is weaker or fails, potentially shutting down the entire circuit.

Combined configurations can be effective for specific applications but are not the standard choice for general uses. Multi-phase does not directly apply when discussing battery connections, as it pertains more to alternating current systems rather than direct current from batteries. Thus, for most practical applications regarding power supply from batteries, parallel connections are optimal for maximizing capacity and reliability.