Batteries in Parallel vs. Batteries in Series

[jamba88]

Homework Statement

What are the main differences between between batteries in parallel vs. batteries in series?

Homework Equations

None

The Attempt at a Solution

I think batteries in parallel have the same voltage, while batteries in series' voltage adds up with how many batteries you have. What else?
Does this mean that batteries in series also have a potential for greater power and can make a light bulb brighter?

 

[mgb_phys]

I think batteries in parallel have the same voltage, while batteries in series' voltage adds up with how many batteries you have. What else?

Correct - now why would you put batteries in parralel?

Does this mean that batteries in series also have a potential for greater power and can make a light bulb brighter?

They have greater voltage so for a fixed lamp resistance will provide more current through the lamp and so more power.