Perhanmm 91Wh 11.4V Laptop Battery for Dell Precision

Perhanmm 91Wh MFKVP 11.4V is a direct-fit replacement lithium‑polymer battery designed to restore full mobile runtime for compatible Dell Precision 15 and 17 workstations.

When your Dell Precision 15/17 shows reduced run time or battery health warnings, swapping in a high‑capacity replacement can bring back reliable untethered use. This Perhanmm battery is a new, 6‑cell, 11.4V / 91Wh pack engineered to match the original fit and power profile for many Precision 7510, 7520, 7710 and 7720 series machines. It ships with two screwdrivers to simplify installation and carries safety certifications so you can replace the battery with confidence.

How do I know this battery fits my Dell Precision laptop?

Confirm compatibility by matching your laptop model or the service part numbers. Perhanmm lists specific P/Ns and the Precision model families this pack supports to reduce guessing.

• Compatible models: Dell Precision 15 (7510, 7520) and 17 (7710, 7720) series.
• Works with service part numbers: 1G9VM, 451-BBSB, 451-BBSF, GR5D3, M28DH, T05W1, 0FNY7 and related codes.
• Check underside sticker or BIOS battery info to verify model/P/N before ordering.

What are the battery specifications and what performance can I expect?

This Perhanmm pack is built as a 6‑cell lithium‑polymer battery with 91Wh capacity at 11.4 volts, designed to offer comparable runtime to the original factory battery under similar workloads. Actual runtime will vary by tasks, screen brightness, and power settings.

• Capacity: 91Wh; Voltage: 11.4V; Cells: 6-cell configuration.
• Condition: brand new, Grade A cells for consistent charging and discharging.
• Performance: restores unplugged use to factory‑class levels under typical productivity loads.

Is this Perhanmm battery safe and supported?

Perhanmm batteries undergo standard safety testing and include protection circuitry to guard against overcharge, over‑discharge, and short circuits. The product is certified to common regulatory standards and comes with a one‑year limited warranty plus email support.

• Certifications: CE, FCC, RoHS compliance for electrical and environmental safety.
• Protection: built‑in circuit safeguards for stability during charge cycles.
• Support: 12‑month warranty and 24/7 email access; seller support available through the Perhanmm storefront.

How easy is installation and what comes in the package?

The battery is intended as a direct swap for the OEM pack and includes basic tools to lower the barrier to DIY replacement. If you prefer professional service, technicians can swap the pack quickly since the connector and mounting locations match the original design.

• Package includes: 1 x MFKVP battery and two screwdrivers for installing the pack.
• Installation: user‑replaceable with standard Phillips screws; no soldering required.
• Tip: power down, unplug, and ground yourself before beginning replacement to avoid damage.

Who is this for? Professionals and power users with Dell Precision 15 or 17 workstations who need to replace a worn or failing battery without paying OEM premiums will find this Perhanmm 91Wh battery a practical alternative. It’s suited for engineers, designers, on‑site technicians, and anyone who relies on long unplugged sessions. If you want a new, certified pack that matches original capacity and offers straightforward installation with included tools and warranty backing, this battery is an economical, safety‑focused choice.