Why will the camera power on when plugged in, but will not power on when useing batteries?, the batteries are new

Sometimes the batteries will build up a memory if they are only used for short periods of time and never used to the point of going completely dead, so possibly getting a new battery online. B&H photo is a pretty good site.
I know some chargers have an output to the cameras battery connector that powers the camera, and if that is plugged into the charger it will not charge the battery simultaneously.
If the camera is working when plugged into the power source it usually turns out to be a battery problem. Sadly the only choice it to buy a new battery.

Have you checked the batteries to make sure they are still viable?

If you haven't use your Nikon Coolpix camera battery for a long time and now there is no power, when you first plug it to charger it maybe show none action. And charger longer it will be well. But if your battery Nikon camera battery are used well these days, and it won't be charge. It means you need a new Nikon battery charger

Hi there is a problem with your camera power connector point. May its burn from from the inside or the circuit board is short. You need to visit any camera repair store for check that items.

hold power button down and remove battery at the same time once battery is out put battery into charger, if the light shows red then it needs to be charged if it shows green allow it to stay in the charger for 3 minutes then remove the battery and install in the camera pust the power button on hold for 5 seconds, if the camera comes on your ready to go, if not then you may have damaged the battery pack and will have to replace te battery. If you have a cable that plugs into the camera try using the powrord with battery plugged in, if it does not work then your battery is bad and you will have to purchase from fuji to get the right battery pack.

That battery is not good.if the battery have warranty please give back and get new one. after that the problem continues, The charging control ic of the camera may be damaged

you have to use only very good quality batteries ...I have a philips..and if I do not put alcaline quality bateries in it ..it do not even power up ....and even with this expensive ones it eats 'em like snacks...
by the way ...keep the batteries inside only when you shoot cause all this new cameras with display and so ...consumes the batteries even when they are powered off ..
my advise is to buy some accumulators the kind you charge on the home power plug.....so in this way .. you will always have strong power into them ..and the cost its worthily ..

What type of batteries did you buy?

For digital cameras, you want to use batteries with high milliamp hour (mah) rating: "2500 mah" if they are rechargeable.

If you bought regular batteries, you want to use good quality. Look for the "e2" or "better for digital equipment" type.

Does the camera have a DC power plug option? Try taking pictures with it plugged in if it does. If it still malfunctions with power right from the wall, then you bought a bad camera.

New Battery. It relys on battery power no mains power like a lappie. And batteries need to be worked. Leave ' em and they die

If this is true, then why does the manual for my new PowerShot SD1100 IS say, "Do not connect compact power adapters or battery chargers to devices such as electrical transformers for foreign travel because it may lead to malfunctions, excessive heat generation, fire, electric shock or injury."

Is this just a standard disclaimer in case something weird happens by using a transformer to charge the battery?