In the illustrated cutaway view of a lead acid battery shown in figure "A" of the illustration, what is the purpose of the series connecting straps? See illustration EL-0031.
• Series vs parallel connections in batteries and what they change: voltage vs ampere-hour capacity • How individual 2-volt lead-acid cells are combined to form a higher-voltage battery • In the cutaway, what terminals the series connecting strap actually links between adjacent cells
• Look at the illustration and trace where the series connecting strap goes: does it join like terminals (positive-to-positive or negative-to-negative) or unlike terminals (positive-to-negative)? • Ask yourself: when you connect cells in series, what electrical characteristic adds together, and when you connect cells in parallel, what adds together? • Which options describe series behavior and which describe parallel behavior of battery cells?
• Verify which terminals are joined by the strap in figure A (positive of one cell to negative of the next, or something else). • Confirm from basic DC theory that series connections change one quantity and parallel connections change the other (voltage vs capacity). • Eliminate any options that describe connections that would leave the overall voltage the same for all cells.
No comments yet
Be the first to share your thoughts!