6 Cell Replacement Battery for Dell Studio 1435 1435n Laptop BatteryThis is a brand new Dell Studio 1435 & 1435n premium grade replacement battery. 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 Studio notebook 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 Latitude replacement computer battery 11.1 Volts - also compatible with 10.8 Volt systems 5200 mAh 6 Cell Li-ion - (9 CELL) Samsung (South Korea) Black 2 Year Warranty 30 day full satisfaction guarantee 300-500 recharge cycles You can expect up to 2 - 3 hours of run time with this computer battery when new, depending on your energy use. This battery replaces the Dell Studio 1435 & 1435n batteries and additional machines which are listed at the extreme bottom of this web page. Replaces these many Dell laptop battery part numbers: HW355 HW357 HW358 HW421 RK813 RK815 RK818 TR514 TR518 TR520 TR653 WT866 WT870 WT873 PP24L 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.