?Precise Business Compatibility? Designed for Dell Latitude 13 7389 Series,L3180 Series, 5289 2-in-1 Series, perfect match for Part No.: K5XWW 6CYH6 71TG4 725KY N18GG 451-BBZC, certified by Dell's original factory interface. ?All-Weather Battery Life? 60Wh high-capacity battery, supports 10-12 hours of business office (based on MobileMark test standards), with original charger fast charging 1 hour up to 80% battery. ?Military-Grade Durability? Passed MIL-STD-810G 14 severe tests (including shockproof/dustproof/extreme temperature), 200% longer than ordinary battery life. ?Intelligent Power Management? Compatible with Dell Power Manager software, you can set the charging threshold (50%-90%) to extend the cycle life to 1000 times. ?Risk-Free Purchase? 12 months long warranty + bulk purchase discounts, If you have any questions or concerns, our dedicated support team is always ready to assist you. Enjoy a risk-free purchase with our hassle-free return policy. ? Professional-Grade Dell Battery Solution Engineered with A+ grade cells to deliver 99% original performance at 35% lower cost. ? Compatibility Verified: Compatible with Dell Laptop Models: for Dell Latitude 5289 2-In-1 Series for Dell Latitude E5289 2-In-1 Series for Dell Latitude 7389 2-in-1 Series for Dell Latitude 7390 2-in-1 Series,(NOT Copatible with Dell Latitude 7390) for Dell Latitude L3180 Series Replacement for Battery Original Part Numbers: K5XWW 6CYH6 71TG4 725KY N18GG 451-BBZC ? Technical Specifications: Capacity: 60Wh / 7.6V 6100mAh(2-cell slim design) Battery Type: Lithium-ion(only 15mm thin) Special Feature: Supports Dell BIOS Battery Health Check Pro Business Tips: Enable “Dell ExpressCharge Boost” mode to reduce charging time by 40%. Fully charges and discharges once a month to maintain accurate power metering ? Executive Package Includes: 1 GBLGBD K5XWW Battery 1 User Manual