Wymisnit 91Wh MFKVP Laptop Battery for Dell Precision

Wymisnit’s MFKVP 91Wh laptop battery is a direct-fit, high-capacity replacement designed to restore long run-time to compatible Dell Precision 15 and 17 workstations.

If your Dell Precision 7510/7520 or 7710/7720 is running out of battery life or shows a degraded charge capacity, this Wymisnit MFKVP battery offers a plug-and-play swap to bring portable power back. It matches the original form factor and connector of the factory pack while providing an elevated 91Wh energy rating at 11.4V (also compatible with the 72Wh T05W1 11.1V type). The pack is shipped with two screwdrivers to simplify installation and is produced to CE/FCC/RoHS standards.

How does this battery match my Dell laptop?

The Wymisnit MFKVP is made to be physically and electrically compatible with specific Dell Precision models and part numbers. It uses the same mounting points and connector pinout as the original, so no adapter or modification is necessary. Confirm compatibility by checking your laptop model or the OEM part number.

• Fits Dell Precision 15 7510, 7520, M7510, and Precision 17 7710, 7720, M7710 series
• Compatible P/Ns include MFKVP, T05W1, TO5W1, 0TWCPG, 451-BBSF, 451-BBSB and others
• Direct replacement size and connector — no soldering or tools beyond included screwdrivers

What performance can I expect from the 91Wh MFKVP pack?

With 91Wh capacity at 11.4V, the MFKVP battery typically provides noticeably longer run-times than lower-capacity packs. Real-world battery life will vary by workload, screen brightness, and connected peripherals, but heavier workloads will benefit most from the higher watt-hour rating. The battery uses a 6-cell configuration that balances capacity and weight for mobile workstations.

• 91Wh energy rating for extended mobile use
• 6-cell layout optimized for sustained performance
• Works with standard Dell charging systems and power management

Is installation difficult and what comes in the box?

Installation is intended to be straightforward: remove the service panel, swap the old pack for the new one, and secure with the screws. Wymisnit includes two screwdrivers to help with the swap and reduce the need for additional tools. If you prefer, a technician can perform the change for added safety or warranty peace of mind.

• Includes two screwdrivers for quick, tool-assisted installation
• Same mounting points and connector as OEM for easy fitment
• Simple user swap—no battery calibration required beyond normal OS power settings

What support and safety features are included?

Wymisnit batteries are manufactured under CE, FCC, and RoHS guidelines to meet common electrical and environmental safety standards. The company backs this product with a two-year limited coverage period against defects and provides customer support if issues arise. Follow standard safety practices: avoid puncture, exposure to extreme temperatures, and use only the specified charger.

• Certifications: CE, FCC, RoHS for electrical and environmental compliance
• Two-year warranty/support window from date of purchase
• Shipped with fastening tools and clear installation steps

Who is this for: This Wymisnit MFKVP 91Wh battery is aimed at professionals and power users who need reliable, longer-lasting power for Dell Precision 15 and 17 mobile workstations. It’s ideal for engineers, content creators, field technicians, and anyone who relies on extended unplugged sessions and wants a direct-fit replacement without altering their laptop’s hardware.