Palm touchstone how does it work

Can a magnetic field created by old wiring in a house interfere with the Touchstone dock magnetic field, causing the phone not to charge in a particular environment, yet allow the exact same equipment to charge well in a different electrical environment?

What are the electrical energy requirements of the Palm Touchstone? Palm will not charge in a particular house, but will charge fine in other environments.

I'm suspecting some voodoo in the electrical field in the house. Fix Your Stuff Community Store. Palm Touchstone Charger Teardown. Tools Featured in this Teardown. Introduction In this teardown, we will show you the innards of Palm's slick induction based Touchstone Charging Kit for the Pre. Step 1 Palm Touchstone Charger Teardown. Add a comment. Add Comment Cancel. Step 2.

Step 3. One comment. Step 4. It seems strange to me that Palm would sell these accessories separately, as they clearly go together. Palm representatives suggested that the Touchstone-specific Pre back cover might ship with the charging dock, despite information to the contrary on the company's website. One downside to the Touchstone and its inductive charging process : it takes approximately four hours to fully charge a dead Pre, according to Palm.

That's roughly double the time it takes to charge a BlackBerry or other comparable smartphone via traditional charging cords and electrical outlets. The Touchstone is also strictly a power supply unit, and it cannot be used to sync data between the Pre and a computer, as is the case with some other comparable charging docks. Wireless charging isn't exactly new; however, most existing cord-free power solutions involve some sort of bulky charging "mat" or "pad" that sits on a desktop while charging various devices.

I must say, Palm's Touchstone is the. Here are the latest Insider stories. I simply lined that up with the battery area. The phone magnetically sits in the right place on the touchstone, slightly to one side. First the touchstone. I had to swap USB power supplies until I found one that worked. The Palm original one works fine. I suspect the PSU just needs to be dumb. It peels off carefully. The Palm Pre sat centrally on the touchstone. I put the coil over the battery with two fine wires attached to the coil circuit.

I insulated 3 of the 5 pogo pins leaving just pin 2 - charge, and pin 3 - ground. Which I carefully made a layered tape connection to.