WP03XL Laptop Battery Replacement for HP EliteBook 830 835 840 845 860 865 G9 835 840 845 860 865 G10 EliteBook x360 1040 G9 G10 Series M73466-005 M64305-421 HSTNN-LB8W HSTNN-OB2J L78555-005

Compatible Battery Part Number

• WP03XL
• M64304-1D1, M73466-005, M64305-421, M64304-422, M64304-AC1, L78555-005
• HSTNN-LB8W, HSTNN-OB2J, HSTNN-LB9C, HSTNN-IB9Y
• 31CP6/60/75

Compatible Laptop Models (please use ctrl+f to search for your laptop model):

• Replacement for HP EliteBook 830 G9
• Replacement for HP EliteBook 835 G9
• Replacement for HP EliteBook 840 G9
• Replacement for HP EliteBook 845 G9
• Replacement for HP EliteBook 860 G9
• Replacement for HP EliteBook 865 G9
• Replacement for HP EliteBook 830 G10
• Replacement for HP EliteBook 835 G10
• Replacement for HP EliteBook 840 G10
• Replacement for HP EliteBook 845 G10
• Replacement for HP EliteBook 860 G10
• Replacement for HP EliteBook 865 G10
• Replacement for HP EliteBook X360 1040 G9
• Replacement for HP EliteBook X360 1040 G9 2-in-1
• Replacement for HP EliteBook X360 1040 G10
• Replacement for HP EliteBook X360 1040 G10 2-in-1
• Replacement for HP ZBook Firefly 14 G9 Mobile Workstation
• Replacement for HP ZBook Firefly 14 G10 Mobile Workstation
• Replacement for HP Split X2 13-M000 Series

Product-Specific FAQ for: WP03XL Battery for HP EliteBook 800/1000 Series G9 & G10

1. Q: Is this battery compatible with my HP EliteBook 840 G9 and also the newer G10 models?
* A: Yes, this WP03XL battery is designed as a universal replacement for multiple generations of HP EliteBook business laptops:
 EliteBook 800 Series G9 & G10: 830, 835, 840, 845, 860, 865
 EliteBook x360 1040 Series: G9 & G10
These models share the same battery specifications and form factor across generations, making this battery universally compatible.

2. Q: My original battery part number is M73466-005 / HSTNN-LB8W. Is this WP03XL compatible?
A: Yes, absolutely. The part numbers WP03XL, M73466-005, M64305-421, HSTNN-LB8W, HSTNN-OB2J, and L78555-005 are all HP part numbers for the same battery used across these EliteBook series. They share identical specifications (typically 51Wh or 55Wh, 11.55V), physical dimensions, and connectors.

3. Q: What's the difference between all these HP part numbers?
A: The different part numbers represent:
WP03XL - HP's commercial part number
HSTNN-LB8W/HSTNN-OB2J - HP's internal assembly numbers
M73466-005/L78555-005 - Manufacturing codes
All are 100% interchangeable with the same performance, safety features, and compatibility.

4. Q: How can I confirm this is the correct battery for my specific EliteBook?
A: For guaranteed compatibility:
1. Check your laptop's Product Number on the bottom label (e.g., "840 G9")
2. Use HP's PartSurfer website with your serial number
3. Verify the part number on your original battery
Matching any of these to our compatibility list ensures perfect fit.

5. Q: What is the actual capacity and voltage of this battery?
A: This WP03XL replacement matches original HP specifications of 51Wh or 55Wh (depending on specific model configuration) at 11.55V. This provides:
 8-12 hours for general business use
5-7 hours for video conferencing
4-6 hours for intensive applications

6. Q: Is this a genuine HP battery or a compatible replacement?
A: This is a premium compatible replacement battery manufactured to meet or exceed original HP specifications. It delivers the same reliability and performance as a genuine HP battery at a more affordable price, with full safety certifications and our extended warranty.

7. Q: Will this battery work with HP's Battery Health Manager in HP BIOS?
 A: Yes. This is an intelligent battery with the proper Smart Battery Chipset. It will be fully recognized by your laptop's HP BIOS and integrate with:
HP Battery Health Manager for optimized charging
HP Support Assistant for battery diagnostics
Windows Power Management for accurate runtime estimates

8. Q: Is this battery safe and certified for business use?
A: Absolutely. This battery includes:
Multi-protection circuit board (over-voltage, over-current, short-circuit)
Thermal monitoring and protection
UL, CE, FCC, and RoHS certifications
Quality cells from reputable manufacturers

9. Q: What warranty do you offer on this EliteBook replacement battery?
A: We stand behind our products with a comprehensive [36-Month Warranty] against manufacturing defects and premature capacity loss, ensuring reliable performance for your business needs.