I tried several retractable micro usb cables that didn't quote work for me; some of them did data and no charge, while some charged but didn't do data. I found these cables on ebay and bought 5 of them. Finally, a cheap retractable cable that charges reliably (even from AC outlet) despite being thin and flexible. Data works perfectly too. As a note, I have no affiliation with the seller - in fact, I think that multiple sellers are selling the identical generic cable under several labels so you might be able to get it cheaper. USB A to Micro B Retractable Cable For LG Rumor Touch - eBay (item 310214351686 end time May-17-10 13:05:48 PDT) These are great because they are so much smaller than normal cables when retracted - I keep one in my car, laptop bag, plugged into a few AC chargers, etc. My only gripe is that I wish they were a bit longer (they are only maybe 2.5ft long) but I can live with that since it actually charges the phone properly.