The MP1500 comes with 10 adapters for a variety of cell and smart phone models from RIM BlackBerry, HTC, Palm, Audiovox, Samsung, Sanyo, Sony Ericsson, Motorola, and Nokia. The range of supported models is admirable, but LG handsets and many of the newer Samsung models aren't compatible. On the other hand, the MP1500 will charge selected digital cameras, portable media players, Bluetooth headsets, and MP3 players (including some iPods). See Tekkeon's Web site for a full list of supported devices.
Once we connected all the cords and plugged in a phone, the MP1500 kicked into life quickly. We tried a few phones and successfully added power to a Nokia 7390, a Samsung SGH-D357, a Sony Ericsson W600i, and a Nokia 6133. On the other hand, we had more trouble with a Motorola Slvr L7e. Though the MP1500 comes with the appropriate mini-USB connector, we couldn't get it to maintain a constant charge. Instead it would start for a few seconds and then stop. The problem could be with the phone, but it was annoying nonetheless.
Of the phones that did work, we were able to get a full charge in about an hour when starting from less than 25 percent battery life. Yet the MP1500 wasn't reliable for charging a fully dead phone. Though it worked on the Nokia 7390, we had no luck with the Samsung SGH-D357. As noted above, you can't use the MP1500 to charge a fully dead phone; it must have enough juice to turn it on before you can start the process. You can use the MP1500 when talking, but the whole arrangement is rather cumbersome to hold. Tekkeon promises you can get up to six hours of additional talk when using the MP1500, but ultimately that will depend on the phone itself. In addition, the type of phone you're charging will have a bearing on how many charges you get off one set of batteries.