Instruct: Classify a given review into positive or negative sentiment.
Query: a no-brainer purchase

If you have a D200, this battery purchase is a no-brainer for you. Having an extra battery or two can really save you if you find yourself low on battery (and with the D200's big screen, you can eat your charge if you reply on previewing your shots too often).In the past, I have purchased clone batteries for my D100. While I saved about $10 at the time, I ended up regretting it when the battery corroded my D100 handgrip. I was lucky though, as I have heard stories of Li-ion batteries catching fire and exploding.Not that the original EN-EL3 does not fit the D200, but I believe this battery does work in the D100 (and other nikon DSLRs).Nikon has a good track record with batteries; in particular, they had a recall of the original EN-EL3 with information available online and at camera shops. That makes me more willing to buy products from Nikon, knowing they will stand behind them if something is wrong.