ZTHY RJ40G 4-Cell 63Wh Laptop Battery Replacement for Dell Latitude 14 5420

Compatibility & Fit Models - Ideal replacement battery for specific Dell series: Latitude 14 5420, Latitude 15 5520, Precision 15 3560, and P137G (P137G001), P104F (P104F001/P104F002) models. Works with part numbers: RJ40G M3KCN 75X16 WY9DX 1K2CF WK3F1 01K2CF 075X16 0WK3F1 0M3KCN 005R42 M033W. Key Note: Latitude 5420/5520, Precision 15 3560 has two battery versions (RJ40G-63Wh & WY9DX-42Wh) please confirm your original battery model before purchase.
Reliable Core Specifications & Brand-New Quality - 100% brand-new battery with 4-cell design, featuring 15.2V voltage and 63Wh/3941mAh capacity for stable, long-lasting power. Sleek black appearance matches your Dell laptops original design seamlessly, ensuring a consistent aesthetic.
Practical Usage Tips for Optimal Performance - Initial installation guidance: If the new battery is not recognized, reinstall and ensure the interface is fully connected. To activate optimal performance, discharge the battery to 10-20% (do NOT drain to 0%), then charge and cycle 3-4 times this helps maximize battery life and efficiency.
Stable Power for All Scenarios - Engineered to deliver consistent power output, whether youre working from home, attending meetings, or traveling. The 63Wh capacity provides reliable runtime to support your daily tasks, avoiding unexpected shutdowns and keeping your workflow uninterrupted.
Hassle-Free Purchase & Compatibility Assurance - We prioritize your shopping experience the clear compatibility list and purchasing note help you avoid wrong orders. This battery is designed to fit perfectly without modifying your laptop, making replacement straightforward for both tech-savvy users and beginners.