i dont know what the problem is with this prduct for everyone that gave it bad reviews, but it works just fine.

I wouldn't know how good the actual Canon charger is, because they sent me a generic battery charger. It works, but it's not what I paid for. BE VERY CAREFUL HOW YOU ORDER THIS!!!

I will recommend that if you get ANY charger and travel with it, put a string on it so you're not stupid enough to leave it in a hotel room's outlet when you leave!

The battery charger was not the same as the one in the picture. It is a after market charger and it does not work as well.

I was mislead by the title here. This item is a REPLACEMENT for the Canon CB-2LS. It is NOT a Canon product. It does indeed charge the NB-1L battery. It does work on an AC or DC power source. The real Canon CB-2LS is a neat, compact unit about the size of a deck of cards and the AC power prongs fold down out of the way when not in use. It will store quite easily in a camera bag. This item here is about 50% larger and comes with an AC transformer and power cord and another power cord with a cigarette lighter adapter. Just what I needed, another product with a transformer and power cords to keep up with. This is listed as the Canon CB-2LS, but it is not. I will be sending it back because it is NOT what I wanted nor was it what I was lead to believe I was ordering.
Addendum: Today, I see that my review is accomapnied by a picture of the real CB-2LS by Canon. The price here is about $35 which is probably the real thing. I paid about $20 for an "equivalent" [though "equivalent" was not in the product description]. My advice is that you should be sure that you are getting the real Canon CB-2LS. If the price is too good, you probably are not.

This unit is quick and extraordinarily simple to use: put in the battery, plug it in. That's it. The indicator glows red for "charging" and green for "charged." There is nothing else to it. The prongs fold away so you can carry it in your camera case without worrying about them scratching anything. The only improvement I could suggest is that it have space to charge two batteries simultaneously.