The Battery. Scholastic, 1998. Experiments and explanations for younger readers.
Borton, Paula, and Vicky Cave.The Usborne Book of Batteries & Magnets. EDC, 1995. An introduction to batteries and magnetism, with principles explained and applications and experiments to increase knowledge. For upper elementary and middle school readers.
Crompton, T. R.Battery Reference Book. Society of Automobile Engineers, 1996. Covers all types of batteries.
Linden, David, ed.Handbook of Batteries. McGraw-Hill, 1995. Includes detailed information on applications.
Electric motors
Engelmann, Richard H., and William H. Middendorf, eds.Handbook of Electric Motors. Dekker, 1995. Standard reference source.