I bought the D7000 battery charger right when it came out in Nov 2010. I don't shoot a ton so I probably recharge batteries six or eight times/year.
My battery charger has apparently failed. I say that because when it is plugged in (which it always is), the amber light is on even when there is no battery in it. And when I put in a battery that needs to be charged, the amber light doesn't flash. I put in a battery which was about 2/3 charged (according to the indicator on the camera) for about two hours, and it still wasn't a full battery at the end of that time.
I just picked up a new charger and the amber light is off unless a battery is in it, and when I put in a battery, the amber light flashes until it is charged (and it does charge all the way.
My reason for writing is I'm wondering if others have heard of the charger failing. I've probably had eight DSLR cameras since 2002 and spent three years as a wedding photographer (during which time I charged about eight batteries for each wedding). All of those cameras were Canon and I've never had a charger fail before. This is my first Nikon. Is this common?
Charger failures are extremely rare. I have 10 Nikon DSLR's and have never had a charger or Nikon battery fail. My oldest two bodies are about 9 years old and cameras, batteries and chargers continue to work perfectly.
There is very little chance of "power surge" damaging a switch mode power supply. It is rated for 100-240 volts so a surge that does not cripple everything in the neighborhood is going to be well below that level.Besides it has a MOV on the primary side which would protect it. "Surge" is a common diagnosis for a unidentified failure but it is actually very very rare. A lightning strike sure could but it would also wipe out everything, turn-on or not in the whole area. The charger is repairable. There are many small devices that use the same circuit so the parts are readily available. But unless you are familiar with SMPS's, don't repair it yourself, there are lethal level voltages and no isolation from the AC mains since it does not have a power transformer. Getting a new charger would be cheaper than taking it to a repair shop. If you did take it to a repair shop, don't bother with a camera shop since they do not do component level electronic work, but instead take it to a repair shop specializing in personal or mobile electronics since all the supplies they work on will be of the same type. Stan St Petersburg Russia
remember that chargers are no longer passive items. They contain small computers. If you keep it always plugged in - in never gets a chance to reset. My recommendation is to unplug it for an hour and then repower up and see what happens.
WOW, Leslie! That was a better suggestion than I would have imagined. I had tried unplugging it for 15 seconds and plugging it back in and that didn't work. But your suggestion WORKED! I unplugged it for a couple of hours and now it seems to work (at least the behavior of the light is what it is supposed to be).
Rocky, I am reminded of the acronym RTFM. Funny thing is: when I bought my D7000 I went farther than most in terms of reading the manual. In fact, I bought Thom Hogan's book and read most of the 800 pages and studied every camera setting he discussed. While I'm sure I looked over the section on charging the battery, I'm sure that I didn't think I needed to study up too much on how to charge the battery.
I was going to throw out the charger, but knowing that I've always received a lot of great advice on these forums, I thought I'd post my experience just in case I was missing something. As usual, the Nikonian Community came through!
Leslie and all who offered your suggestions: I am sorry to be slow in responding to Leslie and in general reporting back if the charger did, indeed, actually charge the battery after it was unplugged for a while. I had only reported back that the lights were behaving properly.
I was actually headed out of town for a three day photo shoot in Washington, D.C. and just got back. Upon return I took my pretty depleted battery from the trip and plugged it into the charger, and then plugged in the charger. The lights behaved normally, and the camera is now reporting that the battery is fully charged.
Hooray! Thanks again, gang, for sharing all of your thoughts with a special shout out to Leslie.
I had ordered a replacement charger, which I can now return. Once again, the price of belonging to the Nikonians pays for itself.
I don't know how much it matters, but the D7100 manual says to insert the battery into the charger and then plug it in. Upon completion of charging, it says to unplug the charger and then remove the battery.