Paper One - Electrical Theory PAPER 1 Electrical Theory UNIT 9. Batteries and Charging Circuits Batteries and Charging Circuits o Primary Cells (Dry Cells) vs. Secondary Cells (Lead-Acid, Nickel-Iron) o Initial and Subsequent Charging of Batteries o Series and Parallel Battery Circuits o Maintenance and Use of Hydrometers Batteries and Charging Circuits Primary Cells vs. Secondary...
