Get longer battery life and improved performance with a new Dell Precision 3490 battery. This Precision 3490 battery is rated 11.4 volts and 42 Whr and will normally last 6 hours on a full charge. It is compatible with the JTG7N, 542WP, 7RDGP battery part numbers. Additional compatible models and battery part numbers are listed below.

Note: There are a several different batteries for these Dell models. It is important to check the part number on your original battery to see what battery to replace with. This is the 3-cell, 11.4 volt, 42 Whr internal 542WP battery. If your battery uses the GRWKG part number here you can find the Dell GRWKG battery. If your original battery is the external, snap-in flavor here you can find the 6-cell Dell MR90Y battery and the 4-cell Dell XCMRD battery.

This Dell Precision 3490 battery uses the highest quality lithium-ion batteries that charge faster, last longer, and weigh less than cheaper, lower quality batteries. Lower quality batteries can wear out in as little as 6 months. Our batteries can last up to 5 years.

Each Precision 3490 battery is factory tested, inspected and backed by a 2 year warranty and 30-day money-back guarantee.