This is a new Dell G5226 battery for the Latitude D810 and Precision M70 models. This G5226 battery is rated 5200 mAh and will typically last 2.5 hours on a full charge. This G5226 battery will still be compatible if your existing battery is rated 4400 or lower. It just means this battery will last longer than the original.
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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 G5226 battery when new, depending on your energy use. If you are looking for even
longer battery run times, check out our DELL-D810XT.