limited lifespan 
This is a Ni-MH battery. In other words it has a limited lifespan as opposed to lithium-ion rechargeables which dont. With general moderate use the battery lasted me about just under 18 months. Progressively it lost its ability to hold a charge even after following the refresh guidelines closely. if youre a professional or serious amateur (which you probably are if youre buying a D1) it would be more economical in the long-run to go with a professional (external) power solution. Those can be found at any pro camera store or online at places like Rob Galbraiths camera site which you can find on any popular search engine like google. I think its robgalbraith.com The above mentioned site has a good review on external battery packs for professionals. Im disappointed with nikons battery approach for their pro cameras and can not help think that their solution could have been motivated by the fact that it helps their bottom line if everyone owning a nikon D1 made an annual pa :2010-09-18 18:38:29
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