Limited life for the camera

When you say my camera will not hold charge, I think you mean your battery (rechargeable) will not. It is normal, that (rechargeable) batteries have a limited life time. Limited can mean from 90 days till 10 years. It depends how often is it charged and how is it used. When you leave a better unused for a very long time. it could cause more damage then using it regularly. When a camera is not used for a long time, the best thing you can do to extend the lifetime of your battery is to charge it at least every 3 months.
Now I'm afraid you have to buy a new one.
Take your camera to a photo shop and ask them to put in a new one, so you can check if that solves your problem, before you buy one. Look whet a battery costs. Sometimes they ask more that the cost of a new camera with a new battery.

Always charge NiMH batteries before using them for the first time, or if they have not been used for a long period.
Always charge sets of batteries (2 or 4) together.
Do not use alkaline batteries unless it is absolutely necessary. In some cases, alkaline batteries may have a shorter service life than NiMH. Alkaline battery performance is limited, especially at low temperatures. The use of NiMH batteries is recommended.
AA manganese (Zinc-Carbon) should not be used. hey have limited power and can leak in a short time, destroying a camera.

Nicd batteries have a limited life. replace the battery.

Any mechanical device will eventually wear out, and a DSLR has many moving parts. The shutter and the mirror mechanism are prime examples, but in addition there are buttons and dials.

There's nothing in the camera keeping track of the date or number of pictures and then stopping operation when some limit is reached. In normal operation, the camera should be good for years and/or tens (or hundreds) of thousands of pictures.

Best practice is NOT to store photos on your memory card, but to transfer them to your computer and to format (some cameras call it "initialize") your memory card before every use. This practice helps prevent bad spots or file errors on the card from becoming a problem. Professionals format their memory cards before any critical use. And, these cards do have a limited life, though that life will vary depending on circumstances.

I would offload any pictures you want to keep from this card and then format it to see if your problem goes away. If it does not, buy a new card.

Firstly check your charger. I was having problems with my batteries packing up after about 1 hours use. Now I only charge 2 at a time (its a 4 battery charger) and the problem is no more.
There is a limited life on batteries, check how old they are and if you've had them more than 3 or 4 years, I suggest you buy replacements. John

If battery is 2-3 years old then buy new battery because these batteries have limited life span and lose its charge storage capacity after long run.
Buy new original battery from Sony Accessories Store for your DSC-T50
Thanks.

u will have to buy a new charger because casio doesn't make its camera with USB charging option. click on this link to buy a new charger.

Let's try this.
If it is not the battery, then it could be the charger.
Not sure how old this camera is.
Your battery has a limited life, like all rechargeable batteries. The life on the older batteries can be dependent on how it is used and how many times it is recharged. The newer batteries have better life expectancy than the older technology.
I think if I wanted to use the camera that the first thing I would do is to buy a new battery from a source such as Ebay Batteries for this camera range in prices from about $5.06 to over $12.00 plus shipping which can be over $12.00.
You will have to decide whether you want to get a battery from a retailer such as Walmart or a photo store. I am sure that the price will still be more than a generic one.
Batteries can look ever so good, and be completely of no use.
It is interesting, though that out of the many batteries I have used for my digital cameras I have fixed and used, only a few have died.
I have taken thousands of pictures with different kinds of cameras to see the batteries last very well.

no non of sony cameras come with any life pan
ya they are telling something baout life cycle
but i have cybershot with 29000 pic and my friend is having about 20000 so if your cameras is in warrenty period then go to sony service station they will fix it
or if you r out of warranty period then go for repairing your camera probebly changing CCD of your camera will fix this problem