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Original HP EliteBook 840 G1, 840 G2, 850 G1, 850 G2 Battery CM03XL
If your HP business notebook turns off immediately when disconnected from the charger or fails to hold charge during mobile work, upgrading to an authentic replacement battery is critical. The Original HP EliteBook 840 G1, 840 G2, 850 G1, 850 G2 Battery CM03XL is engineered directly by HP to meet original factory specifications.
Delivering a steady 11.1V output and 50Wh (4250 mAh) capacity, this internal 3-cell Li-ion Polymer battery safeguards delicate system circuits from dangerous current irregularities. Counterfeit aftermarket batteries frequently experience voltage drops under heavy processing loads or trigger BIOS startup warnings. Choosing a genuine HP CM03XL unit ensures seamless integration with Windows power management tools and HP Power Manager, giving you accurate discharge monitoring and preserved battery health over time.
Compatibility
This genuine HP CM03XL battery is engineered and verified to fit seamlessly across the following HP notebook models:
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HP EliteBook 800 Series: EliteBook 840 G1, 840 G2, 850 G1, 850 G2
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HP EliteBook 700 Series: EliteBook 740 G1, 740 G2, 745 G1, 745 G2, 750 G1, 750 G2, 755 G1, 755 G2, 845 G1, 845 G2, 855 G1, 855 G2
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HP ZBook Workstation Series: ZBook 14 G1, ZBook 14 G2, ZBook 15u G2
HP 840 G1 CM03XL Battery Specifications:
| Feature | Details |
| Battery Type | Lithium-Ion (Li-ion) or Lithium-Polymer (Li-Poly) |
| Voltage | 11.1V |
| Capacity | 50Wh |
| Number of Cells | 3 Cells |
| Condition | Brand New |
| Warranty | 3 Months |
| Compatible Laptop Models | HP EliteBook 840 G1, HP EliteBook 840 G2, HP EliteBook 740 G1, HP EliteBook 740 G2, HP EliteBook 745 G1, HP EliteBook 745 G2, HP EliteBook 750 G1, HP EliteBook 750 G2, HP EliteBook 755 G1, HP EliteBook 755 G2, HP EliteBook 850 G1, HP EliteBook 850 G2, HP ZBook 14, HP ZBook 14 G2, HP ZBook 15u G2 |
| Compatible Part Numbers | CM03XL, CM03, CM03050XL, HSTNN-DB4Q, HSTNN-DB4R, HSTNN-IB4R, HSTNN-L11C-5, HSTNN-LB4R, 716723-271, 716724-1C1, 716724-421, 717375-001, 717376-001, 719941-002 |
Bonus Tips for Maintaining Your Laptop Battery:
- Avoid Extreme Temperatures: Heat and extreme cold can degrade your battery over time. Try to use and store your laptop in a cool, dry place.
- Optimal Charging Habits: Don’t constantly keep your laptop plugged in at 100% if you’re not using it. For optimal battery health, aim to keep your charge between 20% and 80%.
- Calibrate Your Battery: Periodically, let your battery drain completely and then fully charge it. This helps the battery management system accurately report the charge level.
- Update Drivers and Firmware: Manufacturers often release updates that improve battery efficiency. Keep your laptop’s drivers and firmware up to date.
- Reduce Screen Brightness: The screen is a major power consumer. Lowering your screen brightness can significantly extend battery life.
- Manage Background Apps: Close unnecessary applications running in the background to reduce power consumption.
Factors to Consider While Purchasing a Laptop Battery:
- Compatibility: Always double-check that the battery’s model number and part number precisely match your laptop. Refer to your old battery or laptop manual.
- Voltage and Capacity (Wh/mAh): Ensure the new battery’s voltage closely matches your original battery. Higher Wh or mAh generally means longer battery life.
- Brand and Quality: Opt for reputable brands or genuine OEM (Original Equipment Manufacturer) batteries for better performance and safety.
- Warranty: A good warranty indicates the seller’s confidence in their product. A minimum of 3 months is recommended.
- Price: While affordability is important, be wary of unusually low prices, as they might indicate a low-quality or counterfeit product.
- Seller Reputation: Buy from a trusted seller with good customer reviews and a clear return policy.
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