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New CX03XL Battery For HP EliteBook x360 830 G7 G8 855 G7 L77624-421
New CX03XL Battery For HP EliteBook x360 830 G7 G8 855 G7 L77624-421
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New Genuine CX03XL Battery for HP EliteBook x360 830 G7 / G8 / 855 G7 – Restore Your Premium Convertible’s All‑Day Freedom
Exact replacement for HP part numbers: CX03XL, L77624‑421. High‑capacity lithium‑ion battery. Compatible with HP EliteBook x360 830 G7, 830 G8, 855 G7 (and select 830/855 series – check your original label).
Does your HP EliteBook x360 830 G7, G8, or 855 G7 run out of battery during your workday? It’s frustrating when you need to switch to tablet mode or give a presentation and can’t find an outlet. A worn‑out battery is the most common reason. The Genuine CX03XL Battery (L77624-421) is a reliable OEM replacement for EliteBook x360 models. It provides dependable, lasting power.
This lets you multitask, join video calls, and work on creative projects. You won’t need to search for a charger all the time. Made to HP’s original specifications, it achieves a precise fit. It charges without risk using your HP adapter and operates effectively with HP’s power tools. Replacing the battery is easy. Just take off the bottom cover and disconnect the old one. Once you swap it out, your EliteBook x360 will feel like new. It’ll be ready to last all day in any mode.
Quick Specs – What You’re Getting
| Specification | Value |
|---|---|
| Part Numbers | CX03XL, L77624‑421 |
| Compatible Models | HP EliteBook x360 830 G7, 830 G8, 855 G7 (also 835 G7/G8 – verify original label) |
| Chemistry | Lithium‑ion |
| Compatible Part Numbers: |
HP L77624-421, L78551-005, HSTNN-LB8R, L77624-541 |
| Compatible Laptop/Tablet Models: |
HP EliteBook x360 830 G7 HP EliteBook x360 830 G8 HP EliteBook 855 G7 |
| Safety Features | Over‑charge, over‑discharge, short‑circuit protection, temperature monitoring |
| Expected Runtime | 8–10 hours light to moderate use (web, Office, video calls) |
| Fast Charging | Supports HP Fast Charge (with 65W USB‑C adapter) |
| Warranty | 12 months |
A healthy CX03XL battery restores your EliteBook x360 to its original all‑day stamina – perfect for remote work, travel, or back‑to‑back Zoom calls without hunting for an outlet.
Why Choose Our Genuine CX03XL Battery?
-
Fresh cells – Manufactured within the last 6 months. Date printed on label. No old inventory.
-
Exact fit – Same dimensions, connector, and latch as HP original. No modifications.
-
HP Fast Charge compatible – 50% charge in about 30 minutes with genuine HP 65W USB‑C adapter.
-
Full safety certifications – CE, RoHS, UN38.3 (air transport safe).
-
12‑month warranty – Free replacement if it fails.
-
Up to 50% less than HP direct – Fair pricing.
You don’t need to overpay HP. But you also shouldn’t trust a no‑name battery that might ruin your convertible. Our genuine CX03XL gives you OEM quality at a fair price.
New Genuine CX03XL Battery for HP EliteBook x360 830 G7 / G8 / 855 G7 – Restore Your Premium Convertible’s All‑Day Freedom
Exact replacement for HP part numbers: CX03XL, L77624‑421. High‑capacity lithium‑ion battery. Compatible with HP EliteBook x360 830 G7, 830 G8, 855 G7 (and select 830/855 series – check your original label).
Does your HP EliteBook x360 830 G7, G8, or 855 G7 run out of battery during your workday? It’s frustrating when you need to switch to tablet mode or give a presentation and can’t find an outlet. A worn‑out battery is the most common reason. The Genuine CX03XL Battery (L77624-421) is a reliable OEM replacement for EliteBook x360 models. It provides dependable, lasting power.
This lets you multitask, join video calls, and work on creative projects. You won’t need to search for a charger all the time. Made to HP’s original specifications, it achieves a precise fit. It charges without risk using your HP adapter and operates effectively with HP’s power tools. Replacing the battery is easy. Just take off the bottom cover and disconnect the old one. Once you swap it out, your EliteBook x360 will feel like new. It’ll be ready to last all day in any mode.
Quick Specs – What You’re Getting
| Specification | Value |
|---|---|
| Part Numbers | CX03XL, L77624‑421 |
| Compatible Models | HP EliteBook x360 830 G7, 830 G8, 855 G7 (also 835 G7/G8 – verify original label) |
| Chemistry | Lithium‑ion |
| Compatible Part Numbers: |
HP L77624-421, L78551-005, HSTNN-LB8R, L77624-541 |
| Compatible Laptop/Tablet Models: |
HP EliteBook x360 830 G7 HP EliteBook x360 830 G8 HP EliteBook 855 G7 |
| Safety Features | Over‑charge, over‑discharge, short‑circuit protection, temperature monitoring |
| Expected Runtime | 8–10 hours light to moderate use (web, Office, video calls) |
| Fast Charging | Supports HP Fast Charge (with 65W USB‑C adapter) |
| Warranty | 12 months |
A healthy CX03XL battery restores your EliteBook x360 to its original all‑day stamina – perfect for remote work, travel, or back‑to‑back Zoom calls without hunting for an outlet.
Why Choose Our Genuine CX03XL Battery?
-
Fresh cells – Manufactured within the last 6 months. Date printed on label. No old inventory.
-
Exact fit – Same dimensions, connector, and latch as HP original. No modifications.
-
HP Fast Charge compatible – 50% charge in about 30 minutes with genuine HP 65W USB‑C adapter.
-
Full safety certifications – CE, RoHS, UN38.3 (air transport safe).
-
12‑month warranty – Free replacement if it fails.
-
Up to 50% less than HP direct – Fair pricing.
You don’t need to overpay HP. But you also shouldn’t trust a no‑name battery that might ruin your convertible. Our genuine CX03XL gives you OEM quality at a fair price.
| Battery Capacity | 53Wh |
| Voltage | 11.55V |
| Model No | CX03XL |
| Warranty | 12 Months |
🔋 Lithium-Ion Battery Conditioning
For optimal electrochemical performance, new lithium-ion batteries should undergo 2–3 complete charge and discharge cycles before reaching full capacity.
This stabilization phase allows the internal cell chemistry to achieve balanced ion distribution, ensuring maximum runtime, stable voltage output, and extended cycle life.
After this initial conditioning period, no further full discharge cycles are required.
🛡 Premium Warranty Protection
- 12-Month Limited Manufacturer Warranty
- Up to 30-Day Return Guarantee (Policy Based)
- Replacement for defective or misrepresented items
- Dedicated customer service response within 24 hours
🚚 Professional Shipping Standards
- Orders placed Monday–Friday are processed within 1–2 business days. Orders placed on weekends are processed the following Monday.
- Tracking information appears in your order within 1–2 business days after dispatch.
- Transit time varies by region and logistics carrier
- Please verify your shipping address before order confirmation
- Address changes are not possible once shipment is dispatched
📌 Product-Specific Notice
📩 Customer Care Commitment
We are committed to delivering professional-grade battery solutions and responsive after-sales service. If you experience any issues, please contact our support team before leaving feedback.
✓ Safety & Quality Assurance
- Built-in protection against overcharging, overheating, and short circuits.
- Shipped in compliance with IATA regulations for lithium batteries.
- Compatible with OEM chargers. No firmware modification required.
Questions about compatibility? Contact us with your device model number before ordering.
Cao Chuanping
Power Systems Consultant · 8+ years in replacement battery sourcing & evaluation · View profile →
All batteries sold on accessories-mall.com are replacement parts. accessories-mall.com doesn't affiliate with any of the original manufacturers. Any registered trademarks or model names listed above are identified as purposes of showing compatibility only.
