Um, no. None of the cool kids use battens. They are dumb. If you really need that extra 3 square feet of sail, run your underpants up the halyard and enjoy the extra 1/3546787th of a knot.
Does you jib have battens? does your Spinnaker? No. Why? ...because those are your smart sails. Your mainsail is is a big baby and needs to grow up and lose the battens. Battens hang in the shrouds, eat your sails, and are the cause of the collapse of Western civilization.
Of course, your results may vary.