Get up to 6 hours of battery life with a new replacement Dell Inspiron 17-3721 battery. The Dell Inspiron 17-3721 battery is a 6 cell battery which is an improvement over the 4 cell battery that was included with many Dell laptops. The 6 cell 58 Whr battery has more than 60% more run time capacity than the original 4 cell 40 Whr battery. Depending on the size of your laptop screen and the power consumption settings of your laptop, you can get up to 6 hours of run time with this battery.
This Dell Inspiron 17-3721 battery replaces the original battery found in a wide variety of Dell Inspiron, Latitude, and Vostro models. To make sure you order the correct one, double check the part number listed on the original battery (part number is usually followed by the words "Dell Type". The part number on the battery should match with MR90Y or one from the list below.
If you're looking for the 4 cell 40 Whr version, go to our Dell XCMRD battery.
We use the highest quality lithium-ion cells and battery components that run longer, charge faster, and weigh less than cheaper, lower quality batteries. Lower quality batteries are made with inferior cells and parts that can wear out in as little as 6 months.
Each Dell Inspiron 17-3721 battery carries 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.
