Battery for HP EliteBook 840 G3, 850 G3, 745 G3, 850 G4, 745 G4, 755 G3, Thin Client Mt42, Mt43, ZBook 15u G3, CS03 11.4V 4100mAh from CELLONIC  ...  more

100% compatible replacement with HP batteries

Specifically designed to fit your laptop. See the full compatibilities list.

Guaranteed 4100mAh capacity

Unlike many competitors, our battery capacities are true, real and guaranteed. This Lithium-Polymer battery is 4100mAh and offers long runtimes with fewer charging breaks - exactly as advertised.

High-performance 11.4V CS03XL battery

Our long-life replacement laptop batteries deliver consistently high performance that matches or exceeds that of your computer’s original battery - all for a high number of charging cycles.

Superior quality and safety standards

Battery specialists since 2004, all our replacement batteries undergo strict, rigorous testing to fully comply with the highest EU standards and beyond - that’s why they come with a 3-year guarantee.

The sustainable choice

Replace the battery, not your device. It’s the smarter, cheaper, eco-friendlier choice, saving you money while cutting your environmental footprint through recycling.

Choose CELLONIC and never compromise on quality. Order now!