Fancy Buying CA06 CA06XL Laptop Battery for HP ProBook

Fancy Buying's CA06/CA06XL is a direct-fit 6-cell Li-ion replacement battery that restores full mobile runtime for compatible HP ProBook 350 and 640/645/650/655 G1 laptops.

If your HP ProBook is showing short runtimes, the Fancy Buying CA06/CA06XL battery provides a straightforward, OEM-standard replacement. Designed as a compatible alternative to part numbers like 718677-421, 718678-421, 718755-001 and 718756-001, this 5200mAh, 11.1V pack offers reliable power for everyday productivity. The cell layout and connector match original placements so installation is simple, and built-in protection circuitry helps safeguard your laptop and the battery itself during charge cycles.

How will this battery improve my laptop's daily runtime?

Replacing an aged or failing battery with the Fancy Buying CA06/CA06XL typically returns your notebook to its original usable session lengths. The higher 5200mAh capacity and 6-cell configuration give more energy storage than many low-capacity replacements, which translates to longer unplugged use for work, streaming, and light editing.

• 5200mAh capacity for extended uptime compared to depleted OEM packs
• 11.1V voltage matches HP ProBook power requirements
• 6-cell design balances run time and physical fit
• Up to 500 recharge cycles before significant capacity loss

Is this battery compatible with my specific HP model or part number?

The Fancy Buying CA06/CA06XL is engineered to replace the original CA06 family and associated HP spare numbers. It is compatible with ProBook 640 G1, 645 G1, 650 G1, 655 G1 and other listed ProBook 350/640 series machines that use these parts—verify your laptop's part number to ensure a perfect match.

• Compatible part numbers: CA06, CA06XL, E7U21UT, E7U21AA
• Also fits HP spare numbers: 718677-421, 718678-421, 718755-001, 718756-001, 718677-141
• Designed for ProBook models: 640/645/650/655 G1 and select 350/640 series
• Press Ctrl+F on product listing page to search your model or part number

What safety and longevity features are built into this battery?

Fancy Buying assembles the CA06/CA06XL using quality cells and protective circuitry to reduce risk and prolong usable life. The battery includes overcurrent, overcharge, and overdischarge protection as well as temperature monitoring, which help prevent common failure modes and support safer daily use.

• Protection circuits for overcharge, overdischarge, and short-circuit events
• Temperature control to reduce thermal stress during charging
• Manufactured to meet OEM-like standards for performance and safety
• Rated for approximately 500 recharge cycles under normal conditions

What warranty and support does Fancy Buying provide?

This battery includes customer-friendly protections: a 30-day refund window and a 12-month warranty against defects. Fancy Buying offers direct support through the product page contact button and commits to a timely response for troubleshooting, returns, or replacement inquiries.

• 30-day full refund policy if you’re not satisfied
• 12-month limited warranty covering manufacturing defects
• Email support with typical 24-hour response time
• Returns handled via the product page “Ask a Question” contact option

Who is this for: The Fancy Buying CA06/CA06XL battery is aimed at ProBook owners and IT technicians who need a cost-effective, drop-in replacement to revive older HP 640/645/650/655 G1 series laptops or units that list the compatible spare part numbers. It’s ideal for students, mobile professionals, repair shops, and anyone maintaining a fleet of compatible HP notebooks who wants safer charging behaviour, a clear warranty, and a straightforward installation process.