rcartier Yes, but be sure to use a phone charger with it, otherwise your phone's battery will be drained very quickly. If the drive is the big 3.5 inch type, it will need it's own power supply as well as you p... Yes, but be sure to use a phone charger with it, otherwise your phone's battery will be drained very quickly. If the drive is the big 3.5 inch type, it will need it's own power supply as well as you phone charger. A slim drive, 2.5 inch disc, will get its power from the phone, which is why you need the phone charger. شاهد المزيد

rcartier No. This item cannot do what you asked. Although it is both a transmitter or a receiver, it can only be one of them at a time. It was not made for two-way communication.

rcartier No. This is a combination charger and protection board only. It does NOT boost the output at all. The maximum output, when the battery is full, will never be above 4.2 volts. If you need a 5 volt out... No. This is a combination charger and protection board only. It does NOT boost the output at all. The maximum output, when the battery is full, will never be above 4.2 volts. If you need a 5 volt output, you will need to add an appropriate boost converter. (Careful, if you buy another board, some will charge and boost, but will not protect the battery.) شاهد المزيد

rcartier yes.

rcartier Your question doesn't make sense. There is no such thing as a "full-range subwoofer"! Full-range means that it's range of frequencies is close to that of the human ear, 20 Hz - 20KHz. A Subw... Your question doesn't make sense. There is no such thing as a "full-range subwoofer"! Full-range means that it's range of frequencies is close to that of the human ear, 20 Hz - 20KHz. A Subwoofer is a driver that is designed for very low bass frequencies, ~150 Hz and below. I can only assume that you used the word subwoofer to mean driver (or speaker)... In that case, yes, you can use your 10W full-range speaker with a 12V power supply, if the impedence of the speaker is 8 ohms. If the impedence is 4 ohms, you should try it with 12V, and lower the voltage to 9V if you were getting distortion at high volume. شاهد المزيد

rcartier At an output of 200mA, you would need 5 of these in parallel to get 1A... It can be done. But, realistically, it would be better to set it up to charge an external battery pack, and then use the bat... At an output of 200mA, you would need 5 of these in parallel to get 1A... It can be done. But, realistically, it would be better to set it up to charge an external battery pack, and then use the battery pack to charge the phone. شاهد المزيد

rcartier A lead acid battery is around 13 volts... The Range of this meter is 2.5 to 30 volts... Gee, is 13 between 2.5 and 30? What do you think? Dumb question!

rcartier You can use a 3 conductor ac cord and connect the green ground wire to a metal case which you will use o