What does series wiring do?

• A. Increases current capacity
• B. Increases both voltage and amp-hour capacity
• C. Increases voltage but not amp-hour capacity
• D. Decreases voltage

Answer: (C)

In series wiring, voltages add while the amp-hour rating stays the same. When you connect components in a series chain, the total voltage is the sum of each source, but the same current flows through every element, so you don’t increase how much charge you can draw over time. For example, two 12V batteries rated at 100Ah in series give 24V at 100Ah. The energy storage goes up because the voltage is higher, but the amp-hour capacity remains that of a single device. If you want more amp-hours, you’d connect batteries in parallel, which keeps the voltage the same and increases the Ah.