Replacement Battery for Dell Inspiron 12 cell 1100, 1150, 5100, 5150, 5160 & Latitude 100L This is a brand new Extended Run Dell Inspiron replacement battery. This long run battery will run at least 50% longer than the standard capacity battery that ships standard with your laptop. The added run time is achieved with an additional 8 cells inside the cartridge. The extended run battery is our best-selling model as the added capacity does not require a larger battery pack. The extended run 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 battery is 3-5 hours. Longer run times can be achieved by minimizing the power use, especially the screen brightness. The superior South Korean cells inside the battery cartridge will provide longer run times between charges as well as a longer service life than cheaper batteries. In addition, Li-ion batteries are not subject to the memory effect common with older battery technology. This means you can recharge your laptop any time without diminishing your battery capacity. This laptop battery replacement is typically superior to the original battery and is 100% compatible with your Dell Inspiron laptop computer. The battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty. Brand: Voltage: Battery Capacity: Battery Type: Cell Origin: Color: Warranty: Guarantee: Useful Life: Dell replacement computer battery 14.8 Volts 6600 mAh or 87 Whr 12 Cell Li-ion (6 cell available here) Samsung (South Korea) Grey 2 Year Warranty 30 day full satisfaction guarantee 300-500 recharge cycles 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 6600 & 7200 mAh. This battery will deliver 20% more run time than cheaper 9 cell versions and 77% more run time than cheaper 6 cell versions of this battery. If you prefer the 6 cell battery, click here for the standard 6 cell battery Dell laptop (our Dell-29) . This battery replaces the Dell Inspiron 12 cell 1100, 1150, 5100, 5150, 5160 & Latitude 100L series laptop batteries and additional machines which are listed at the extreme bottom of this web page. Replaces these many Dell laptop battery part numbers:0U091 0U093 310-5205 310-5206 312-0079 312-0296 6T473 6T475 6Y912 7T249 7W238 8T273 8Y849 999C2110 9T352 9T686 BATDW00L BATDWOOL F0590 H2369 J2328 K2241 U1223 W0597 W1824 X5646 Y0157 Laptop Battery Express only deals with brand new premium computer batteries. We never carry recycled or used batteries. We only use the highest quality cells inside the battery pack so you will have a long service life (300-500 recharge cycles) . We do not use cheaper battery cells which can wear out in a little as 6 months. Our inventory turns rapidly and you will always receive a freshly manufactured battery.