Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: How do I tell when the battery is fully charged? Does the charger light go out?
Document: After looking for an OEM charger for my Lumix camera (unsuccessfully I might add), I decided on this 3rd party package. My original battery was depleted, so I popped in the new one and charged the old one. New battery worked like a champ and the charger brought the original up to full charge, unlike others who stated the light said charged but wasn't fully charged. Haven't tried the mobile charger yet, but am really happy with the deal.
The Wasabi Battery charger kit is an exceptional value. The product is sturdy but light weight. Very smart to have the plugin fold into the charger unit, makes it very compact. It comes with everything you need to keep your batteries charged so you are ready for all those photo's.
One of the two batteries works fine. The other won't charge. Light on charger just blinks. I think the charger is junk too. The one in my phone charges and works fine. However the second battery won't charge in phone or on separate charger.
I needed a charger for a trip and couldn't find my original. I ordered this one and it works great. The two batteries are OK. They don't hold a charge as long as the original battery but as a back-up they are perfect. You can't go wrong at this price!
They last long and charge fast, Can't say if they last longer than original since I didn't do a test but they last for a long time. charger is really good haven't tried charging in car, Some advice, Make sure light turns out since the connect can easily shake and get out, so you don't waste time thinking the battery is charging.
I was a little nervous purchasing the charging unit with 2 spare batteries at such a reduced priced. Charger has worked perfect both in the car and using household current. The batteries last just as long as the original. Now we have a travel charger and an extra battery we can keep just with our suitcases so we don't go off and forget them.
These are a nice replacement for the original battery and charger. It was a good price for what you get considering you get two batteries and the charger that can plup into the wall or it can be a car charger. I bought this for my Lumix DMC-TS3. The batteries worked great and were already charged. I was impressed also in the packaging because each of the batteries was not only in a little bag of there own but also in a hard plastic case.
Wanted a charger that worked off 12v, not just wall power like the OEM one. Having 2 spare batteries means always have a charged spare. Happy with the charge they hold - haven't noticed any major difference between the Panasonic OEM battery and these.
The charge in the battery is weak and doesn't last very long. I wish I could return it.Anyway, I bought the Panasonic Lumix battery which lasted long and charged well.
Goes from full charge to mid ok, but then suddenly to fully drained.OEM Panasonic battery was fine in the same camera.
Answer: Charger light changes from red to green, IIRC. Don't have it with me right now. *Might* be printed on back of charger...