hello, i'm super noob. My understanding is not yet clear. it sounds like folks here are describing current as something that's output by the transformer, but i thought current does not exist until there's a load. so my question is, how big of a load can it handle (not sure what 'big' really means, but anyway....) ... i thought that was the OP's question. for example, i have a 12 volt battery rated at 5 amp-hours. if i step it down to 6 volts, would the secondary winding have a 'rating' of greater than 5 amp-hours? or rather, will i increase the effective amp-hours of the battery by stepping down its voltage? or, will the battery be able to drive a more demanding load? or, will i be able to draw more instantaneous current? thanks!