Bought a Nikon Coolpix S3000 (orange) for my daughter after Christmas. It just stopped working one day; wouldn't charge, no lights or come on. The battery it came with is a Nikon lithium ION Battery Pack EN-EL 10 - 3.7V 740mAh - 2.8Wh. The charger it came with plugs into the USB of the camera and then into a Wall plug-in. Even if the battery was completely dead, wouldn't the camera come on with the A/C or wall plug-in? If not what battery pack would you recommend and what would be the best way to charge it? I've never seen and external battery charger for a battery that looks like it would fit in a cell phone but i also have never had to look for one either.

Try the following:
- Remove and insert the battery (to reset)
- Start your coolpix
- During a few seconds, it shoud start... before saying the battery is low. Quickly connect it to a computer during that time (quite short !)
The problem occurs when the "charge by computer" option is activated (see user manual item #173 / page 161).
If the light flashes again, do not press the on/off button: instead, wait for the battery to get charged (otherwise everything will get stopped - and you will have to play again).
When done, check the "charge by computer" option (and fix it if misconfigured).

Read page 16 of the manual. Do not use any other charger with this camera. Are you sure you have the battery inserted correctly? When trying to charge, does the green light blink? If so, when it stops blinking and turns off, the battery should be fully charged. Do not attempt to turn the camera on while the charger is trying to charge the battery.