Did you try Papago M6 for Android?

Take desire. At the end of the day, either Desire or Legend, you're definitely trading up

If the output specifications are 5V, 1A then it should be fine. 5V is because we're using a standard USB port here (to be exact a Micro USB connector) and the USB standard requires a 5V power rail. The amperage determines current flow and the higher it is will reduce charging time (so to speak). Standard amps are 500mA but this is too low for charging a high-drain device like a mobile phone. So most manufacturers of car chargers design a 850mA-1000mA charging system for 'faster charging'.

So if this Belkin is 5V, 1A it should be fine. Most car chargers are.

Besides Apple stores, chapalang brand also can one. These are just power delivery circuits. The charging control, power regulation and main mechanism is housed within your phone (usually).

Different phones will have varying degrees of signal reception and quality. It will depend on a few things like:

- GSM transceiver antenna design
- GSM module chip performance
- the radio firmware <-- this is why some people recommends you to get the latest revision through phone software updates
- target SAR value and power consumption expectations
- etc etc

One thing to take note is that your phone is now encased in a solid block of aluminum and it is not the best material to use in terms of radio transparency. Meaning to say they block radio signals. Which is why you get black plastic materials (at the camera - top side and battery door - bottom side). This is where the radio antennae like GSM, WIFI+Bluetooth is placed.

If your location has spotty 3G/WCDMA coverage, you might wanna consider switching to 2G/EDGE only. Some radio firmware (depending on design objectives) favor signal strength more than high speed networks like 3G. So whenever your signal bar goes to less than 3 bars, your phone will automatically switch to 2G/EDGE only to switch back to 3G/WCDMA later. This switching will cause service interruptions or a call drop out. It may also cause power inefficiency since your radio has to keep searching when this happens.

Do consider on the SAR envelope and power consumption expectations. Some phones may have very good signal reception. Either they are bulky, have pretty high SAR value or power consumption a little high. Of course, this doesn't mean you can't find a perfect phone with all the good things checked in your list. Still it is far in between. Now modern phones are tightly integrated with all sorts of features, space for transceiver antenna is getting smaller and requires more power to drive high speed applications.

Anyway, I still thing that solid block of aluminum is the key behind lower than normal signal reception.

This post has been edited by davidmak: May 10 2010, 09:33 AM