Laptop Battery for HP ProBook 640 645 650 655 G2 Series, CI03XL, 11.4V 41Wh, Compatible with HSTNN-LB6U HSTNN-DB6U HSTNN-UB6U TPN-C103, 2-Year Warranty

**Product Overview**
Upgrade or replace your worn-out HP ProBook battery with this high-performance CI03XL compatible battery. Designed specifically for the HP ProBook 640 G2, 645 G2, 650 G2, and 655 G2 series, this 11.4V 41Wh lithium-ion battery delivers stable power output to keep your laptop running smoothly throughout the day. Whether you are working remotely, attending classes, or traveling, this battery ensures you stay productive without constantly searching for an outlet.

**Important Voltage Warning**
Please verify your original battery voltage before purchasing. This battery is rated at 11.4V (3-cell series). It is NOT compatible with 14.4V or 14.8V models. Using an incorrect voltage battery may damage your laptop. Check the label on your current battery or consult your laptops specifications.

**Compatible Laptop Models**
- HP ProBook 640 G2
- HP ProBook 645 G2
- HP ProBook 650 G2
- HP ProBook 655 G2

**Compatible Battery Part Numbers**
- CI03XL
- HSTNN-LB6U
- HSTNN-DB6U
- HSTNN-UB6U
- TPN-C103
- 809940-001
- 809940-002
- 809940-003
- 809940-005
- 809940-006

**Specifications Table**

| Specification |

Details

|
|---------------|---------|
| Battery Type | Lithium-Ion (Li-ion) |
| Voltage | 11.4V |
| Capacity | 41Wh / 3800mAh |
| Cell Count | 3 cells |
| Color | Black |
| Weight | Approx. 250g |
| Warranty | 2 Years |

**Comparison Table: Original vs Replacement**

| Feature | Original HP Battery | Our Replacement Battery |
|---------|---------------------|-------------------------|
| Voltage | 11.4V | 11.4V (Exact Match) |
| Capacity | 41Wh | 41Wh (Same Performance) |
| Compatibility | OEM only | Full OEM & Aftermarket |
| Safety Certifications | Yes | CE, FCC, RoHS Certified |
| Price | High | Affordable |
| Warranty | 1 Year | 2 Years |

**Installation Tips**
1. Shut down your laptop and unplug the AC adapter.
2. Remove the battery latch or slide the release button (depending on your model).
3. Gently lift the old battery out of the compartment.
4. Insert the new battery, ensuring it clicks into place securely.
5. Lock the battery latch, then plug in the charger and power on your laptop.
6. For best performance, fully charge the battery before first use (allow 4-6 hours).

**Safety & Quality Assurance**
Each battery undergoes rigorous testing for voltage stability, capacity accuracy, and safety protection. Our BMS chip prevents over-voltage, under-voltage, over-current, and short-circuit conditions, giving you peace of mind during daily use.

**Package Includes**
- 1 x Replacement Battery (CI03XL Compatible)


**Customer Support**
If you have any questions about compatibility or installation, please contact us. We offer a 30-day money-back guarantee and a 2-year warranty. Your satisfaction is our priority.