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    CF-VZSU71U 10.8V 73Wh 6750mAh 9-Cell Li-ion Battery for Panasonic Toughbook CF-31 CF-52 CF-53 Replaces CF-VZSU72U Grade A Cells Long Runtime

    • Massive 73Wh 9Cell Capacity Power Through Full Shifts Dont let a dead battery stop your field work. This highcapacity 6750mAh replacement delivers up to 10 hours of runtime perfect for Toughbook users who need reliable power for utilities, public safety, or military operations.
    • Exact Fit for Panasonic Toughbook CF-31, CF-52 & CF-53 Compatible with Panasonic Toughbook CF-31, CF-52, CF-53 series (including MK4 models). Replaces OEM part numbers CF-VZSU71U, CF-VZSU72U. Direct swap no modifications.
    • 10.8V Li-ion 9-Cell High Energy Density 73Wh of energy for demanding field applications. No more sudden shutdowns at 30% or performance drops when youre miles from a charger. Built to withstand rugged conditions.
    • Premium Grade A Cells Built to Last Manufactured with brand new Grade A Liion cells, not recycled or lowgrade. Expect stable voltage, consistent discharge, and 500+ cycle life. Green compliant (WEEE). No swelling, no false battery gauge.
    • Safe & 100% Tested Builtin overcurrent, overvoltage, overheating, and shortcircuit protection. Each unit tested before shipping. Backed by 30day money return and 12month warranty.
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    Why You Need a HighCapacity 9Cell Battery for Your Panasonic Toughbook

    Your Panasonic Toughbook CF-31, CF-52, or CF-53 is built for the harshest environments military, utilities, public safety, and field service. But even the toughest laptop is useless when the battery dies halfway through a shift. After heavy use, you may notice shorter runtime, the laptop shutting down at 30%, or a swollen battery that wont stay seated. OEM batteries are expensive and hard to source.

    This CF-VZSU71U replacement battery solves that problem delivering true 73Wh / 6750mAh capacity with 9 premium Grade A Liion cells.

    Designed for Panasonic Toughbook CF-31 / CF-52 / CF-53 Series

    This battery is a direct fit for the following rugged models:

    Panasonic Toughbook CF-31 (all variants)

    Panasonic Toughbook CF-52 (all variants, including MK4)

    Panasonic Toughbook CF-53 (all variants)

    Replaces OEM part numbers: CF-VZSU71U, CF-VZSU72U.



    Specifications

    You Can Trust

    Specification Detail
    Model CF-VZSU71U / CF-VZSU72U
    Chemistry Liion
    Voltage 10.8V DC
    Typical Capacity 6750mAh / 73Wh (true capacity)
    Minimum Capacity 6300mAh
    Cells 9Cell
    Dimensions 0.8 × 6.5 × 3.2
    Weight 1.03 lbs (approx. 467g)
    Max Runtime Up to 10 hours (depending on usage)
    Max Recharge Time Approx. 2 hours
    Condition Brand new Grade A cells
    Certifications Green compliant, WEEE
    What a Cheap or Failing Battery Costs You

    Interrupted field work Laptop dies during critical data entry or GPS mapping.

    Safety risk Loss of communication in remote or hazardous areas.

    Swelling Dangerous bulging that can crack the rugged case.

    Constant recharging Battery doesnt last a full shift.

    What Our Battery Delivers

    Feature Cheap Generic Our Premium 9Cell Battery
    True Capacity Often 5060Wh (fake label) 73Wh (tested)
    Cells Recycled or lowgrade Brand new Grade A
    Runtime (field use) 46 hours 810+ hours
    Swelling Risk High within months Low, proper BMS
    Warranty None or 30 days 30day return + 12 months
    Who Is This Battery For?

    Field technicians, utilities workers, and public safety professionals.

    Military and defense applications requiring rugged reliability.

    Anyone using a Panasonic Toughbook in harsh environments.

    Safety & Reliability

    Every battery includes builtin protection against overcurrent, overvoltage, overheating, and short circuits. Grade A Liion cells ensure consistent power delivery even in extreme temperatures. We test each unit before shipping.

    Easy Installation

    Slide the release latch on the bottom of your Toughbook, remove the old battery, and insert the new CF-VZSU71U. Fully charge before first use.

    Whats Included

    1 x CF-VZSU71U / CF-VZSU72U Replacement Battery (9cell / 73Wh)

    Before You Order

    Please doublecheck your original battery part number (CF-VZSU71U or CF-VZSU72U) and your Toughbook model (CF-31, CF-52, or CF-53). This battery is designed for 10.8V systems it will not fit newer CF-54 or CF-33 models without verification. When in doubt, contact us with a photo of your original battery.

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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