<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt">If you don't have a meter you can use an old headlight in line between the battery and the positive cable. Remove all fuses. Install one fuse. If light comes on then that fuse powers something that is drawing on the battery. If no light then move onto the next fuse. Keep in mind that you could have more than one drain so check each fuse by itself.</div></body></html>