HP EliteBook 840 G3 / G4 Replacement Battery – CS03XL High-Capacity Li-ion

Restore Your Laptop's Portability & Power

Is your laptop dying as soon as you unplug it? Don't let a dead battery stop your hustle. Refresh your HP EliteBook with this high-quality CS03XL replacement battery. Designed specifically for the 840 G3 and G4 series, this battery provides stable power and long-lasting performance, so you can work from your favorite cafe or lecture hall without hunting for a socket.

Why buy from Epson(K)SmartTech:

• Perfect Compatibility: 100% compatible with HP EliteBook 840 G3, 840 G4, 745 G3, and 745 G4.

• Safety First: Built with premium cells that include over-charge and short-circuit protection for your peace of mind.

• High Endurance: Designed to handle hundreds of charge cycles, giving your laptop a "brand new" feel.

• Slim Design: Fits perfectly inside your 840 G3 chassis—no bulges, no hassle.

💡 Expert Tip: To get the best life out of your new battery, we recommend charging it to 100% and then discharging it to 10% for the first three cycles!

Technical Specifications