This is a new Dell Latitude D810 and Precision M70 battery. This battery is rated 5200 mAh and will typically last 2.5 hours on a full charge. This is the highest rating available for a 6 cell battery pack. The higher the mAh rating, the longer your battery will run before it needs to be recharged again. This battery will still be compatible if your existing battery is rated at 4400 or 4800 mAh or a lower Whr.

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All our products carry a full 2 Year warranty and every battery is charged and tested before it ships. We provide a 30 day money back guarantee if you are not completely satisfied.

You can expect about 2 hours to 2-1/2 hours of run time with this Dell Latitude D810 battery when new, depending on your energy use. If you are looking for even longer battery run times, check out our extended run battery for your Dell laptop ( DELL-D810XT).