Application: Batteries and Battery Charging

Battery Basics: http://batterytender.com/resources/battery-basics.htm/

Charging Multiple Batteries: http://batterytender.com/resources/connecting-batteries-chargers.htm

Jump Starting Your Car: http://www.cartalk.com/sites/default/files/features/jumpstart/images/jumpstart2012.pdf

Batteries Gone Awry: http://en.wikipedia.org/wiki/Boeing_787_Dreamliner_battery_problems  (first picture, you can see multiple battery pods connected in series or parallel)

Extending the life of your iPhone Battery: http://www.apple.com/batteries/iphone.html

Internal Resistance and realistic battery parameters