So in looking at both the 2400 and 2300 the biggest problem is the battery, or a lack of good ones specifically. I looked at the unit offered by Provantage.com (someone on this list mentioned it) but the one made for the 2400 isn't compatible with my Titanium. I'm wondering if I could rig an adapter cable so the external battery made for my Ti would work on a 2400 (or 2300). Are there any issues I haven't considered that would make this impossible? Thanks Larry