Cingular replacements for the Treo 650 do not include a battery. You have to keep yours to use in your replacement. As far as the stylus I was specifically told I need not return it so I did not. No problems.
Keep the Battery and the phone, and send back the stylus.
"When Palm announced today that its new smartphone would run an operating system from Microsoft, it was the equivalent of Coca-Cola agreeing to fill its bottles with Pepsi." ~David M. Ewalt, Forbes Magazine
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My Phone history.....
When I got my Cingular exchange unit a few weeks back, it was actually a brand new unit in the box w/ everything. I actually called them because the instructions sounded like I was only supposed to send back the phone, and they said yes, just send back the phone and keep the chargers and stuff. I did return it w/ the battery and stylus, thought, because figured that was part of the phone.
I got my 3rd Treo 650 last night. This one looks like a keeper. I decided to keep the extra stylus under the policy of don't send back the accessories.
I upgraded the locked phone from 1.05/1.04 to 1.23 than to the final 1.28. I than reinstalled all my apps manually not wanting to risk wierd preference files.
I called Cingular today at 866-490-2666 and had my replacement unlock code in less than 5 minutes!
I hope to be in Treo nirvana now.
Pilot 5K->Palm IIIc->Tungsten T/T2->Treo 650/680 -> Pre+ (1.4.5 & Uberkernel)