Atv Winches

I need a bigger alternator to me that a atv should I get?
I have a deep trx250ex with a winch and spreader that keeps draining my battery and someone said to have greater alternator, but I need to know how much bigger and so forth that the sizes and websites that appriceated
not working that way, your charging system / alternator is part of the engine, called the stator that runs outside of the flywheel, basically the same as an alternator, as it develops tension AC and DC voltage becomes your atv used for its power through a rectifier regulator, I have heard of high efficiency rectifiers, but added boast the power does not load, you might want to have your charging system and see if you can try a better battery, here is a link to you anyway http://cgi.ebay.com/ebaymotors/Hi-Perform- TRX400 ATV-Honda-250EX-250-RECON-RECTIFIER_W0QQcmdZViewItemQQhashZitem1e59fe5f29QQitemZ130358861609QQptZMotorsQ5fATVQ5fPartsQ5fAccessories-
Lewis Winch rescues Warn winch equiped Rhino and Atv from mud hole and up a rock face near Glamis.