Current & Voltage

Prasanna sent an interesting Question. This is how Science progresses, with curiousity aroused by practical needs. Here is the question:

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Hi

The following Amaron 12 Volt lead acid battery. 

It ran out of charge. I had with me 8 1.5 volt Duracell batteries as the one below.

 

Can I connect 8 of them in series, total voltage will be 12 volts and use them instead of the original Lead acid battery.

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Can you explain? Write your answers in Comments.

Will come up with an explanation soon.