Does your Dell Inspiron laptop not last as long as it used to? Do you count your battery life in minutes, not hours? Revive your laptop's life with a brand new replacement Dell Inspiron 1520 battery from Laptop Battery Express. We use the highest quality lithium-ion battery cells that charge faster and last longer.

This extended run Dell Inspiron 1720 battery will last 50% longer than the original battery and can run up to 5 hours in between charges. Because there are 3 additional Li-ion cells (9 total), this battery will be physically larger than the original and will protrude slightly from the rear of the laptop. Every battery is 100% compatible with the original battery specifications. Each battery is tested and backed by a 2-year warranty and 30-day money back return.

This battery is compatible with the Dell Inspiron 1520, 1521, Inspiron 1720, 1721 and Dell Vostro 1500 and 1700 models. (If you have a Vostro 1520 this is the wrong battery.) And compatible with 312-0589, 312-0576, 310-0590 part numbers. Additional compatible Dell laptop models and battery part numbers are listed. Don't see your model or part number listed? Go to our Dell laptop batteries page for the full catalog or call our tech support. Chances are we have it!

Not all computer batteries have the same capacity and run times. The higher capacity battery cells inside this cartridge have an energy capacity of 7800 mAh. These are the highest capacity Li-ion batteries on the market today and superior to batteries rated at 4400 & 5200 mAh. This battery will deliver up to 60% more run time than cheaper 6 cell versions.

Replaces these Dell laptop battery part numbers