A remote controlled robot car

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i planning build remote controlled robot car,
i intend use 2 of motors linked below 8 aa batteries arduino motor shield.

http://uk.rs-online.com/web/p/dc-geared-motors/3213164/

is current 8 batteries enough drive 2 motors?

you have data sheets , batteries, can't figure out? question should asking "how long batteries drive motors?". , thinking of putting batteries in series or parallel, or combination?

paul


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