Confused as to why I would need to take apart the car adapter?
You don't -- that's the point. sickrick43 was telling of how he "hacked" the adapter to wire it to a battery, when there are better alternatives.
Right you are Bri. Minimizes the form factor, and allows RELIABLE connections that aren't likely to come apart in a big, or mid-show.
And what if you have a "store bought" SLA battery system with XLR-4 connectors? What are you supposed to attach those clips to? If you choose to use the Radio Shack adaptaplugs and extension cords, as I;ve documented (or even the RC type connectors) you can make a system where the cig lighter adapter can be "plugged into" the car adapter to power/charge the JB3 in the car.
If you've got a DIY SLA. then replace the "booster cable" clips on this thing, with whatever connector your SLA takes. I'm running EC-90's, with XLR connectors on the battery, so going with a modular connector solution, allows me to interchange devices without a hassle.
You're still going to have to do some "hacking" either of the car adapter, or the cigarette lighter attachment. I wouldn't just use the stock clips on this thing, and PRAY that they don't slip/get knocked off in a show, nor would I consider using a cable with spring loaded "jumper-cable-style" clips a "better alternative".
If you've really got your heart set on this, I suggest you "hack off" the jumper cable spring clips, and crimp on spade lugs that fit the connectors on your battery. But still, people that are using XLR-4 style connectors are going to have to do some soldering, one way or another.
The one thing we KNOW a JB3 doesn't take kindly to, is losing power on the external adapter.
Rick