Battery for HP 440 450 G2 HSTNN-LB6K TPN-Q144 Q140 VI04 11.4V 41Wh 4-Cell Laptop Battery [Compatible with HP ProBook 440 G2, 450 G2, 455 G2, 470 G2 Series] [2-Year Warranty]

**Product Overview**
Upgrade your HP ProBook 440 G2, 450 G2, 455 G2, or 470 G2 laptop with this high-performance replacement battery. Designed to meet or exceed OEM specifications, this 11.4V 41Wh 4-cell battery delivers stable power output, helping you stay productive throughout the day. Whether youre working remotely, attending classes, or traveling, this battery ensures your device runs smoothly without unexpected shutdowns.

**Important Voltage Warning**
Please verify your original battery voltage before purchasing. This battery is 11.4V (nominal) / 10.8V (rated). It is NOT compatible with 14.8V or 15.2V models. Using an incorrect voltage battery may damage your laptop or cause safety hazards. If unsure, check the label on your original battery or contact us with your laptop model and battery part number.

**Compatible Laptop Models (Including but not limited to): **
- HP ProBook 440 G2
- HP ProBook 450 G2
- HP ProBook 455 G2
- HP ProBook 470 G2
- HP 240 G2, 245 G2, 246 G2, 250 G2, 255 G2, 256 G2, 260 G2
- HP 340 G2, 345 G2, 346 G2, 350 G2, 355 G2, 356 G2
- HP 440 G2, 445 G2, 446 G2, 450 G2, 455 G2, 456 G2, 470 G2
- HP 650 G2, 655 G2, 656 G2
- HP Pavilion 14, 15, 17 series (select models)

**Compatible Part Numbers: **
HSTNN-LB6K, HSTNN-DB6K, TPN-Q144, TPN-Q140, VI04, 807956-001, 807956-541, 807956-851, 808727-001, 808727-541, 808727-851, 809618-001, 809618-541, 809618-851, 807956-001, 807956-541, 807956-851, 808727-001, 808727-541, 808727-851, 809618-001, 809618-541, 809618-851, HSTNN-LB6K, HSTNN-DB6K, TPN-Q144, TPN-Q140, VI04.

**Product Specifications**
| Specification |

Details

|
| --- | --- |
| Battery Type | Lithium-Ion (Li-ion) |
| Voltage | 11.4V (Nominal) / 10.8V (Rated) |
| Capacity | 41Wh / 3600mAh |
| Cells | 4-Cell |
| Color | Black |
| Weight | Approx. 220g |
| Dimensions | 20.0 x 7.0 x 2.0 cm (Check fitment with your laptop) |
| Certification | CE, FCC, RoHS |

**Comparison Table: Our Battery vs. OEM**
| Feature | Our Replacement Battery | Generic Low-Quality Battery |
| --- | --- | --- |
| Cell Grade | Premium Grade A | Unknown or Grade B/C |
| Safety Protection | Overcharge, Over-discharge, Short Circuit, Overheat | Basic or None |
| Cycle Life | 500+ charge cycles | 200-300 cycles |
| Warranty | 2 Years | 6 Months or None |
| Voltage Accuracy | ± 0.1V | ± 0.5V or more |

**Installation Tips**
1. Power off your laptop and disconnect the AC adapter.
2. Remove the bottom panel (if applicable) or locate the battery compartment.
3. Gently slide the battery lock to the unlock position and lift the old battery out.
4. Insert the new battery, ensuring the connectors align properly.
5. Slide the battery lock to the lock position, replace the bottom panel, and power on your laptop.
6. Fully charge the battery before first use for optimal performance.

**Safety & Quality Assurance**
- Built-in overcharge, over-discharge, over-current, and short circuit protection.
- Manufactured in an ISO9001 certified facility.
- Tested for compatibility and performance before shipping.

**Package Includes**
- 1 x Replacement Battery
(with installation guide)

**Customer Support**
We stand behind our product with a 2-year warranty and 30-day money-back guarantee. If you have any questions about compatibility, installation, or performance, please contact us. We typically respond within 24 hours.

**Note: ** This is a third-party replacement battery, not an OEM HP product. It is fully compatible and tested to meet or exceed OEM standards.