Closer view of rear rack and battery. Note that the battery has a decent reflector built into the rear. The battery slides in from the rear and pins engage into the black controller box. You can charge the battery on the bike to prevent having to remove it all the time. The battery handle surrounds that rear reflector and because the battery is laying on it`s side then it tends to flap in the breeze and might be the source of my annoying rattle.(easily solved)