HOW DO I ATTACH A CHARGER TO MY BATTERY

Well, you know where the battery is located on your bike (Under your seat in your RH cover)
A trickle charger have a black and red alligator/clamp lead. Battery normally on the top side near their posts have a plus ("+") and minus ("-") indicators. Clip your red cable to your positive and black to negative, leave it overnight ( at least 6-8 hours) unclip and give the bike a go. That sghould do it.
Good enough for a thumbs up?

I have a 95 intruder 800 and some people aren't familiar with the battery location ,when I hook up my battery charger I hook it to the selinoid beside the fuse cover on the left side of the bike if your facing the rear,I put the red to red and the black(negative) I hook to a good frame ground or engine ground like the gear shifter,the reason I do this is because the terminals are so close together on the selinoid. The battery location on my bike is under the center of the bike close to the kick stand or that area, anyway hope it helps!