HP CM03XL Original Battery – Fits EliteBook 840/850 G1

The HP CM03XL Original Battery is a high-grade 11.1V 50Wh replacement lithium-ion polymer internal battery designed for HP EliteBook 740, 745, 750, 755, 840, 850 G1 and G2 commercial notebooks, as well as HP ZBook 14 and 15u mobile workstations. Engineered to deliver reliable off-desk endurance, this 3-cell battery resolves common battery age issues including fast power drain, failure to recharge past low percentages, and immediate shutdowns upon unplugging the power adapter.

Built with quality grade-A lithium-ion polymer cells, the battery features multi-layer internal circuit safeguards against electrical short circuits, overcharging, excessive discharge, and excessive operating temperatures. Precision mounting tabs align accurately with the notebook's internal chassis screw holes, facilitating a clean drop-in replacement. For step-by-step disassembly guides and hardware reference, refer to the official HP EliteBook 840 G1 maintenance and service guide.

This replacement battery is supplied with a store warranty included covering manufacturing defects and charge retention reliability.

Key Hardware Features

• Direct Fit Replacement: Exact replacement for HP original part numbers CM03, CM03XL, CO06, 716724-171, 716724-421, and 717376-001.
• High-Capacity 50Wh Rating: Generous 50Wh energy storage capacity sustains productive work sessions during meetings and off-site field travel.
• Integrated Circuit Protections: Built-in battery controller protects laptop motherboards against voltage spikes, overheating, and short circuits.
• Reliable Recharge Cycles: Premium lithium polymer cells support extended operational life across hundreds of charge cycles.
• Extensive Model Compatibility: Powers HP EliteBook 840 G1/G2, 850 G1/G2, 740 G1/G2, 745 G1/G2, and HP ZBook 14 series.

Technical Specifications

Frequently Asked Questions

How do I know if my EliteBook 840 G1 battery needs replacing?

If your laptop dies immediately when the charger is unplugged, takes hours to charge without gaining battery percentage, or swells beneath the palm rest, replacing the CM03XL battery is required.

Is the CM03XL battery compatible with both G1 and G2 laptops?

Yes. The CM03XL battery shares the identical physical dimensions, connector pin layout, and voltage specifications across both HP EliteBook G1 and G2 generations.

Can I install the CM03XL battery myself?

Yes. The EliteBook 840 G1 features an easy-access tool-free bottom service door latch, allowing quick access to unplug the battery connector and remove mounting screws.

What warranty accompanies this replacement battery?

This replacement battery comes backed by a store warranty included covering manufacturing defects and normal charging retention.

Where can I purchase the HP CM03XL battery in Nairobi?

You can purchase directly online for prompt dispatch across Kenya or visit our retail store at The Bazaar Plaza, Moi Avenue, 10th Floor, Wing A, Suite 1038, Nairobi CBD. For inquiries, WhatsApp our support desk at 254739238917.

Looking for other HP batteries? Explore the HP OA04 replacement battery or browse our complete laptop accessories collection.