New Replacement Battery for Dell Latitude D820 D830 D531 D531N [Li-ion 6-Cell 5200mAh Grey]

hi this is anthony depino with laptop battery express this six cell dell battery is rated at 5200 milliamp hours and will give you about two to three hours of runtime depending on your energy use the mah or milliamp hour rating indicates how long the battery will run on a charge the higher the mah number the longer the battery will run all of our batteries are brand new with samsung power cells a texas instruments computer chip and they're never used or refurbished all batteries from laptop battery express come with a 30 day money back guarantee and a full 12 month warranty if you're finding less expensive batteries online please be aware that it is because use cheap quality power cells inside the cartridge that can easily wear out in six months all of our batteries shipped from the united states and all air shipments placed by 6 pm eastern time shipped the same day if you're unsure whe