adernaline

Hi i m new to dis site.
I own a 2001 CBZ with a if mods made by me.
I require help on the few probs of mine.
I hav converted by AC lighting into DC one.But my battery drains within half an hour.I ask my mech to check with it,but he says its fine.Battery guy says de batt is also fine.I previously i use 100/90W bulb den after lot of draining i changed back to 35W bulb.I also use two 12V horns.PLS GIVE ME HELP ON DIS TOPIC.
MY MODS:
1.FZ headlight assembly
2.Original coil
3.original recitifer
give me help on dis