This is a brand new Long Run Dell HR048 battery for the Latitude D820 model. This HR048 battery will run 50% longer than the standard capacity battery that ships standard with your laptop. The added run time is achieved with an additional 3 cells inside the cartridge. The extended run HR048 battery is our best-selling model as the added capacity does not require a larger battery pack. The extended run Dell Latitude D820 battery pack is the same size battery cartridge as the original 6 cell battery. Users of this battery pack experience an additional 1-2 hours of run time over the standard battery for just $10.00 added cost.

Estimated run time with this HR048 battery is 3-5 hours. You can get longer battery life by minimizing the power use, especially the screen brightness. Each battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.

Not all computer batteries have the same capacity and run times. The higher capacity battery cells inside this Dell HR048 battery has an energy capacity of 7800 mAh. These are the highest capacity Li-ion batteries on the market today and superior to batteries rated at 6600 or 7200 mAh. If you prefer the 6 cell battery go to our standard cell Dell Latitude D820 battery.