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The receptacle on the the battery for the cable that attaches inside the Dell Precision 3510 laptop is several inches away compared to the factory installed battery. Thus I now have to order a cable that will reach across the body of the battery. Totally asinine engineering on the part of the battery manufacturer. With the longer internal cable which I just ordered for $12, I have no doubt it will work, but would have preferred to know this up front.
The battery was delivered quickly, fit into place without issue, and worked as expected. The tools provided with the battery are a useful bonus: a very small phillips screwdriver and a plastic pry-tool. These will go into my backpack for travel support.
Not worth it. Easy to install and only worked for about 6 months, now it does not hold a charge at all. I've tried contacting support but they have not answered. Hopefully, they will see this, apparently, there is a warranty. Support - please contact me.