SKU: 1033515812

HP CM03XL Original Battery – Fits EliteBook 840/850 G1

Sale price$2025.00 Regular price$2250.00
Save 10%

Pay in installments of $562.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HP CM03XL Original Battery – Fits EliteBook 840/850 G1HP CM03XL Original Laptop Battery Compatible with HP EliteBook 840 G1 & 850 G1 Series Genuine HP Replacement Key Highlights Genuine HP Part: Original HP battery with exact specifications for your EliteBook Perfect Compatibility: Specifically designed for HP EliteBook 840 G1 and 850 G1 laptops Extended Runtime: 50Wh capacity provides up to 8 hours of productivity Safety Certified: Multiple protection circuits prevent overcharging and overheating

HP CM03XL Original Laptop Battery

Compatible with HP EliteBook 840 G1 & 850 G1 Series | Genuine HP Replacement

Key Highlights

Genuine HP Part: Original HP battery with exact specifications for your EliteBook
Perfect Compatibility: Specifically designed for HP EliteBook 840 G1 and 850 G1 laptops
Extended Runtime: 50Wh capacity provides up to 8 hours of productivity
Safety Certified: Multiple protection circuits prevent overcharging and overheating
Warranty Included: Comes with full manufacturer warranty for peace of mind

Product Overview

The HP CM03XL is an original equipment manufacturer (OEM) lithium-ion replacement battery specifically engineered for HP EliteBook 840 G1 and 850 G1 business laptops. This genuine HP battery delivers reliable performance with a 3-cell, 50-watt-hour (Wh) capacity design that restores your laptop to its original runtime specifications. Manufactured to meet HP's stringent quality standards, the CM03XL battery features advanced power management technology that communicates seamlessly with your laptop's BIOS for accurate charge level reporting and optimal power efficiency. Whether you're a business professional needing all-day productivity, a student moving between classes, or a remote worker requiring dependable mobile computing, this battery provides the authentic HP performance you expect. With built-in safety features including overcharge protection, temperature monitoring, and short-circuit prevention, you can trust this battery for safe, reliable operation throughout its lifecycle.

Detailed Specifications & Features

Compatibility & Applications

The HP CM03XL battery is designed as a direct replacement for the original battery in HP EliteBook 840 G1 and 850 G1 series laptops. These business-class laptops are known for their durability and performance, and the CM03XL battery restores them to their original power specifications. This battery is also compatible with some other HP laptop models that share the same chassis design and power requirements. Before purchasing, verify your laptop's exact model number and existing battery part number to ensure perfect compatibility. The CM03XL is ideal for business professionals, IT departments managing fleets of corporate laptops, educational institutions with HP laptop deployments, and individual users seeking genuine HP replacement parts for their devices.

Technical Specifications

This 3-cell lithium-ion battery operates at 10.8V (11.1V nominal) with a capacity of 50Wh (4500mAh). The battery uses high-density lithium-ion cells that provide optimal energy storage in a compact form factor. It features a standard 6-pin HP connector that ensures secure attachment and proper communication with the laptop's power management system. The battery includes an integrated circuit board with a microcontroller that monitors cell voltage, current, temperature, and charge cycles. This smart battery technology enables accurate runtime predictions and prevents damage from improper charging conditions. The physical dimensions are 20.5 x 6.8 x 2.0 cm (8.07 x 2.68 x 0.79 inches) with a weight of approximately 255 grams (0.56 lbs), maintaining the sleek profile of your EliteBook without adding unnecessary bulk.

Performance & Runtime

Under typical usage conditions (web browsing, document editing, and multimedia playback at medium brightness), the HP CM03XL provides between 6 to 8 hours of productive runtime. Actual battery life varies based on multiple factors including screen brightness, system load, wireless connectivity usage, and background applications. The battery supports HP's Fast Charge technology when used with compatible HP power adapters, allowing you to charge up to 90% in approximately 90 minutes. With proper care and maintenance, this battery is rated for up to 1000 full charge cycles while maintaining at least 70% of its original capacity. The intelligent power management system optimizes energy distribution based on your usage patterns, prioritizing power to critical components while conserving energy during light tasks.

Safety Features & Certifications

Safety is paramount in the design of the HP CM03XL battery. It incorporates multiple layers of protection including overcharge prevention, over-discharge protection, short-circuit safeguarding, and temperature monitoring. The battery management system (BMS) continuously monitors each individual cell to ensure balanced charging and prevent voltage irregularities. The battery enclosure is constructed from flame-retardant materials and includes pressure relief vents as an additional safety measure. This genuine HP battery complies with international safety standards including UL, CE, and RoHS certifications. Unlike aftermarket batteries that may cut corners on safety features, the CM03XL maintains all original safety protocols to protect both your laptop and your working environment.

Installation & Maintenance

Installing the HP CM03XL battery is a straightforward process that typically takes less than 5 minutes. Begin by shutting down your laptop and disconnecting the AC adapter. Turn the laptop over and slide the battery release latch to remove the existing battery. Align the new CM03XL battery with the compartment, ensuring the contacts are properly oriented, then gently press until it clicks into place. For optimal battery health, HP recommends calibrating the battery every 2-3 months by allowing it to discharge to approximately 10% capacity, then charging it uninterrupted to 100%. Avoid exposing the battery to extreme temperatures (below 0°C or above 45°C) and store it at approximately 50% charge if not using for extended periods. These maintenance practices will help maximize the battery's lifespan and performance.

Genuine vs. Aftermarket Considerations

Choosing a genuine HP CM03XL battery over aftermarket alternatives offers several significant advantages. Original HP batteries are engineered to exact specifications with quality-tested components that ensure reliable performance and safety. They maintain seamless communication with your laptop's power management system, providing accurate battery level reporting and optimized charging patterns. Aftermarket batteries often use inferior cells that may swell, lose capacity quickly, or even damage your laptop's charging circuitry. Genuine HP batteries also come with manufacturer warranty coverage, while aftermarket options typically offer limited or no warranty protection. Investing in an authentic CM03XL battery protects your larger investment in your EliteBook laptop and ensures consistent performance that meets HP's quality standards.

Environmental Considerations

HP designs the CM03XL battery with environmental responsibility in mind. The lithium-ion cells are free of heavy metals like cadmium and mercury, reducing environmental impact. HP's battery recycling program encourages proper disposal at end of life, recovering valuable materials while preventing hazardous waste from entering landfills. The battery's energy-efficient design helps reduce overall power consumption during use, and its durable construction means fewer replacements over the laptop's lifetime compared to lower-quality alternatives. By choosing a genuine HP battery, you're supporting responsible manufacturing practices and circular economy initiatives that HP has committed to through its sustainable operations framework.

Warranty & Support

The HP CM03XL battery is backed by a standard HP limited warranty that covers defects in materials and workmanship. Warranty duration may vary by region but typically ranges from 6 to 12 months from date of purchase. Register your product on the HP support website to activate warranty coverage and access additional resources. HP provides comprehensive online support including installation guides, troubleshooting articles, and battery maintenance recommendations. In the unlikely event of a defect, HP's warranty service network offers efficient replacement options to minimize disruption to your workflow. This warranty protection adds significant value compared to uncertified aftermarket batteries that may fail prematurely without recourse.

Advantages Considerations
  • Genuine HP quality and reliability
  • Perfect compatibility with EliteBook 840/850 G1
  • Restores original laptop performance
  • Advanced safety protections and certifications
  • Accurate battery level reporting
  • Supports HP Fast Charge technology
  • Manufacturer warranty included
  • Optimized power efficiency
  • High-density lithium-ion cells
  • Easy installation with no tools required
  • Higher cost than aftermarket alternatives
  • Specific to EliteBook 840/850 G1 (check compatibility)
  • 3-cell design may have less capacity than some extended batteries
  • Like all batteries, capacity decreases over time
  • Requires proper disposal/recycling at end of life
  • Performance varies based on usage patterns and settings

Restore Your EliteBook's Original Performance

Don't settle for reduced productivity due to a failing battery. The genuine HP CM03XL restores your EliteBook to its designed performance with guaranteed compatibility and safety.

Add to Cart & Checkout Securely

In stock • Free shipping on orders over $50 • 30-day return policy

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1033515812

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 30 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Beach Dreamer
Louisville, US
★★★★★ 5
The perfect whipper for protein powders
Color: Blue
Love, love this whipper. Had to finally replace my old one that I got several years ago that was battery operated. This rechargeable replacement is incredible. Thought I would miss my old one, but no. The 3 interchangeable attachments make it my go to for a ton of things. Perfect for mixing protein powders!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
A
Verified Purchase
Amazon Customer
New York, US
★★★★★ 5
Epic. Works great.
Color: Black
Works great every day. Super powerful and smooth compared to my old battery powered one. The shaft is much thicker and is more securely positioned so I can't imagine it becoming tweaked off balance like my old one. And it comes with an extra mixer attachment! I imagine I've put that away for a long time, but we'll see. Easy to turn on and off with one hand, but I can imagine it being less easy than a simple push button for someone with decreased thumb dexterity or mobility. I do wish the lowest speed was slightly lower, but it hasn't caused any splashing or other detriment. The speed adjustment is very smooth and power is abundant. Love the stand, Usb c charge port is solid, battery life is excellent.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
I
Verified Purchase
I'm A Zon
Waukegan, US
★★★★★ 5
You want this one, for power and quality and saving on AA battery costs
Color: Black
Yes. You want this one, for power and quality and saving on AA battery costs — buy it now. Don’t waste any more time comparing products. After hours, days, weeks, of researching and comparing, I ordered this one. I do not regret it. It is powerful. It was less than $25 when I bought it. It has a USB charger port and it feels solid in your hand. It has a turn-knob at the top to control the variable speed immersion blender aka milk frother aka wand frother. Charge battery fully for 2hrs before first use and then you’re all set. It works very well. It functioned as expected and then even better. Yes. It exceeded expectations. I hope it lasts a long time. It feels like it is very well made and high quality. Classiest and best wand frother I have ever owned. And I’ve owned over 3-4 in the past 10yrs. I got this one at $25 instead of the highest-rated one for $9.99 because those require AA batteries and this frother however is USB-C rechargeable! So in 1-2 years it will have paid for itself in battery costs alone. But there’s no price I can put on how enjoyable it is to use this super powerful, super smooth, high quality, wand frother.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2025
S
Verified Purchase
Sahil Samral
Bozeman, US
★★★★★ 5
Quality Design
Color: Gray
Excellent frother/mixer Pros: - Quality feels premium. - Plenty of power to mix even with a drink packed with ice and peanut butter. Basically a mini handheld mixer. - Ease of use is great. I appreciated that this had a longer brother so I can mix drinks in taller cups. Also the grip is fantastic and it is easy very easy to change the speed with just one hand so you can hold the drink with the other. Longevity - So far it's been holding up and hasn't needed a battery replacement. Cons: None so far.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
M
Verified Purchase
Michelle
Houston, US
★★★★★ 5
Highly recommend!
Color: Gray
Love this frother!!! Purchased to replace an Aerolatte that stopped working after a reasonable period of use. Right out of the box, it was charged and ready to go. I’ve been using it daily for about 5 weeks on the same charge it had on arrival and it’s still going strong. Love the variable speed and easy to work with one hand. And this baby can froth! It froths far better than our old Aerolatte. Also love the rechargeable feature so no more AA batteries wasted. This handy kitchen tool makes my morning coffee a true highlight. Highly recommend the Maestri milk frother!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026

recommand products