?Precise Business Compatibility? Replacement for Dell Latitude 14 7000 Series (7480, 7490), also compatible with Latitude E Series (E7280, E7290, E7380, E7390, E7480, E7490) series, perfect match for part numbers: DJ1J0, PGFX4, ONFOH, K8X0T, KHY0C, 6JRCP, M0TN3, KD1CT, XVJNP. ?All-Weather Battery Life? 42Wh high-capacity battery (12% higher than the original), supports 8-10 hours of business office (based on PCMark test), fast charging 1.5 hours full. ?Military-Grade Safety? MIL-STD-810G certified, shockproof and dustproof design + triple circuit protection (over-voltage/over-current/short-circuit), suitable for travel environments. ?Intelligent Power Management? Compatible with Dell Power Manager software, supports customized charging thresholds to extend battery life up to 1000 cycles. ?Enterprise-Class Service? 12-month warranty + volume purchase discounts, professional B2B customer service team response. ? Enterprise-Grade Laptop Battery Engineered for business professionals with 500+ quality control checkpoints exceeding Dell OEM standards. ? Compatibility Guarantee: Latitude 12 7000 Series: 7280, 7290 Latitude 13 7000 Series: 7380, 7390 Latitude 14 7000 Series: 7480, 7490 Latitude E Series: E7280, E7290, E7380, E7390, E7480, E7490 Latitude Rugged Extreme Series: 5430, 7330 (NOT Business Laptops) Dell P Series: P28S, P28S001, P148G, P148G001, P149G, P149G001 Note: Not compatible with Latitude 7390 2-in-1 Series Original Part Numbers: DJ1JO, DJ1J0, 451-BBZL, C27RW, PGFX4, ONFOH, K8X0T, KHY0C, 6JRCP, M0TN3, KD1CT, XVJNP ? Technical Specifications: Capacity: 42Wh / 11.4V 3200 mAh(3-cell configuration) Battery Type: Lithium-ion(ultra-thin 3mm cell) Special Feature: Dell BIOS battery health check supported