My EM-50 works fine but uses batteries at a rapid rate. I would like to use an adaptor, but none of my plugs seem to work with the unit. What is the number of the plug which should be used?

I can say from experience that it will. The plug type may be a little different, but the tv should be rated for 50-80Hz and you will be fine. For the plug you can just get an adaptor.

Please rate if this helps! :D

There are problems with the power adaptors. Did you use a VSmile power adaptor, or something that just seemed to fit the unit? Using the wrong power adaptor (like unknowingly plugging a Leapfrog power adaptor) into the unit can cause damage to the Vsmile Board.
Push and hold the power (smile) button for one minute, then install fresh batteries. if it powers back up, then try:

Dirty Smartridges (the game cartridges) are to blame for about 90% of VTech Vsmile products not powering up.
In some instances, the cartridge slot on the unit itself can become damaged and will cause no power up.
Kids (of all ages) can dirty a smartridge in less than a second, and render the whole system dead.

Try swapping the AC adaptor from one of the handsets with the adaptor from the base unit. That fixed my problem.

the best way to charge the batteries is to take them out and place them in an external battery charger, this will also avoid any damage to the camera directly

then also check to see output MA of the USB adaptor which would generally be very less and takes very long to charge

for example if the batteries are 2200MAh and the output MA of the USB adaptor or for that matter of even an external adaptor is 200MA then it takes roughly 11 hours to completly charge the batteries

cheers
pls rate if this was any help

This should have a "battery check" button on the battery itself. Remove the battery and press the button. If it reveals that the battery is not fully charged, or you cannot get it to take full charge, perhaps all that you need is a new battery. If the battery is failing the check the system makes on it at boot, it won't.

whenevr u c this problem,,the problem cannot be only with the battery but also the adapter or with the port on the computer where the adapter pluggs in.if u hav any friends or relatives using the same computer along with the adaptor,,check with that adaptor on ur computer,,if ur friends adaptor works fine,,then the problem with the adaptor,,or else the adaptor port,,best thing call up technical support and replace it if the computer is within the warranty.coz these parts are pretty costly..

best of luck and giv a good rating,,keep me posted

try plugging your usb connector into the usb port located in the back of your xbox 360 next to the power cable coneccion

Well, I am not sure if your problem is the same as mine. My unit stopped working as well after about 1.5 years.

I opened it up, thinking the battery might be a goner. But after opening it up and checking the battery with a voltmeter, it looked good.

On re-connecting the battery, everything worked fine...loose contact maybe? Its been working fine so far.

you need to replace the battery, don't leave your laptop plugged in when not in use, it will reduce the batteries life and eventually it will fail.

hope this helps
thanks for your rating

It may be your main battery is dead. I had the same problems and had to replace the main battery and everything worked fine!