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Feature

9 Cell 7800mAh 11.1V black laptop battery for Dell Latitude E5420 E5520 E6120 E6420 E6520 E6420 ATG Series laptop battery NHXVW M5Y0X T54FJ 208x63x18MM 485g.
10.8V and 11.1V is compatible, 14.4V and 14.8V is also compatible.
Full compatible with your original battery, brand new direct from Professional Manufacturer.
CE UL RoHS certified, safe use. 36 months warranty, OEM factory price, US local dispatch.
Please Note: Interface is at the left tip, not at the right side.

Description

Please Note: Interface is at the left tip, not at the right side.
Please make sure that the product shape of slot and gap are the same size. The battery part numbers listed in the description matches the battery part number on your original battery before you purchase.

Compatible with Dell Part Number:
Dell NHXVW M5Y0X T54FJ

Fit Laptop Models
DELL Latitude E5420 Series, Latitude E5520 Series, Latitude E6120 Series, Latitude E6420 Series, Latitude E6420 ATG Series, Latitude E6520 Series, Latitude E6530 Series.

Answered and Question

Q: How to use a new battery?
A: Generally, new battery charges three or five times to active its electric performance.

Q. How long is the battery life?
A: In fact, replacement battery life, 12 cells battery standby time is about 4-5 hours, actual use time is 3-4 hours; 8 or 9 cells battery standby time is about 3-4 hours, actual use time is about 2-3 hours; 6 cells battery standby time is about 2-3 hours, actual use time is about 1-2 hours; 4 cells battery standby time is about 1-2 hours, actual use time is about 1hours. The peripheral interface uses more power, etc., use time is different, such as too hot environment, external usb, games, light, music use very power. The actual operation time will depend on how much electricity is required by the device and how you use it.