Battery charger I get a flashing red light on my battery pack charger VAR-L20NI when I try to charge my battery pack

It sounds like you need a new battery and/or battery charger. I had the same problem with a simular camera before and just replaced both the charger and the battery because I wasn't sure which one of them was faulty. I haven't had a problem since then. I bought them from the website www.needbattery.com the company guaranteed thier batteries for a year and thier price was the cheapest on and off the internet that I could find. They have both batteries and chargers for your specific camera. This should take care of your problem. Hope this helps
Angie

Well i had the same problem and after reading everyone post i was ready to grab my phone and call the hot line...but then i remembered what my chemistry teacher told me about ion reactions...so i put my battery in the freezer for about 10 minutes poped it in the chargering dock and booom the light stayed red and charged fully... now i dont have to wait a week,try it it'll work ^.^

I've now had 2 Casio EX-Z75 batteries do the same thing- red flashing light on the charger. Exchanged the first camera. On the second one, the battery took the initial charge, but when charged again, the charger flashed red and there was no charge. So I called Casio (a live person answered immediately..hooray!) and they indicated this was a "known problem" and are sending a new battery. <Keeping my original receipt within reach!>

I have the same problem. but i dont know if it is the connection, the battery, or the charger

This may mean a dud battery or a faulty connection or many other things - you will simply have to check out with the camera makers web customer support to discover which it is on that particular charger