Batteries are actually black & yellow dewalt colors made of high impact plastic. I have a huge assortment of dewalt cordless tools and my initial impression is very good. They have all the zip of original cells and longer runtime by Aprox 20%.Also being nimh & not the old nicad chemistry the batteries shouldn't suffer from memory.At half the price of a single dewalt battery you get two, a great value imo. Seriously, go in Home Depot or Lowe's & look at the price of one dewalt brand battery. You can buy 4 of these for the cost of one original. These work fine and actually have produced longer runtimes.Also, if there's a problem I always have ebays good return policy to fall back on so I see little risk in using these.I recommend this productI'm not associated with this productI received nothing for my review
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