Yep, me too - they're going back today. They look to hold enough charge but only report being 631mAh, so mess up the battery status indicator (it stays at 100% until the battery is nearly empty). The holograms don't look as good as the original battery either (they don't have the same depth), so I strongly suspect they're not genuine. The Nokia UK website has a battery check page but it doesn't work. I get exactly the same useless result from anything I enter there (tried the new batteries, the original battery, a random string of text) - just an orange diamond with an exclamation mark.