
Hey Lookey here..... Put that battery back in its place and secure it down. Now getcha self some 10-12 gauge wire, some connectors and, o yeah..... The lights!
Wire up a simple harness that will have one short ground, to the frame. Then a long one, with a Y at the end, one for each light lead.
Ok, so by now, you're think..... Duhhh, I already know thissss but I still can't charge the battery......
Well, yes you can.... Let me ask you, the majority of your riding is done in the day, right? I can hear your brain rattling "yes" , in unison with mine. Ok, so go down to harbor freight ,or where ever , and buy a couple of those plug in solar chargers, for your car. And one of them fancy $7 battery tenders.... Take the solar chargers and cut the plugs off, and wire them together (not sure if in a series or parallel matters here) so you have a negative plug and a positive. A good tip is to always use opposite type plugs for + & -, like a male lead + and female - . This way, later down the road, if you take it apart, you will know how it goes, cause it can only plug in one way.

The solar chargers charge during the day. When not in use, the battery tender will keep battery at peak. If you use some LEDs, the battery should last for quite a bit of night time fun......