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Rectangular black lithium-ion laptop battery pack

KingSener

KingSener CF-VZSU1CJS laptop battery 7.2V 43WH 5900mAh

SKU CH-8PQB-B3DF5 MPN CF-VZSU1CJS

Replacement 7.2V 43WH 5900mAh lithium-ion battery compatible with Panasonic CF-LV8, CF-SV7, CF-SV8 and CF-LV9 models

  • Battery Voltage7.2V
  • Battery Capacity43WH/5900mAh
  • Replaces Panasonic CF-VZSU1C, CF-VZSU1CU, CF-V2SU1CU part numbers
  • 2V 43Wh 5900mAh lithium-ion cell delivers extended runtime
  • 100% brand-new replacement battery with one-year coverage
  • Compatible with Panasonic CF-LV8, CF-SV7, CF-SV8, CF-LV9 models
  • Black lithium-ion pack restores original mobility to supported laptops

Compatible Replacement Battery

This 7.2V 43WH lithium-ion unit replaces Panasonic part numbers CF-V2SU1CU, CF-VZSU1C, CF-VZSU1CJS and CF-VZSU1CU. It fits CF-LV8, CF-SV7, CF-SV8 and CF-LV9 laptops and supplies 5900mAh capacity in a black housing.

Upgrading From Worn Cells

The jump is worth it when the original pack no longer holds a useful charge or shows swelling. A fresh 100% brand-new cell restores full runtime without changing the laptop’s power circuitry.

Voltage And Capacity Limits

The 7.2V output is fixed by the laptop’s charging controller, so capacity cannot be increased beyond 43WH without a different electrical design. Runtime will vary with workload, screen brightness and battery age.

Highlights

  • Replaces Panasonic CF-VZSU1C, CF-VZSU1CU, CF-V2SU1CU part numbers
  • 2V 43Wh 5900mAh lithium-ion cell delivers extended runtime
  • 100% brand-new replacement battery with one-year coverage
  • Compatible with Panasonic CF-LV8, CF-SV7, CF-SV8, CF-LV9 models
  • Black lithium-ion pack restores original mobility to supported laptops

Specifications

BrandKingSener
ModelCF-VZSU1CJS
Part NumberCF-VZSU1CJS
Battery Voltage7.2V
Battery Capacity43WH/5900mAh

Questions about this item

Will the CF-VZSU1CJS battery fit inside my Panasonic CF-SV8 without modification?

This 7.2 V, 43 Wh pack is built to the original CF-VZSU1CJS form factor and replaces part numbers CF-V2SU1CU, CF-VZSU1C and CF-VZSU1CU for the Panasonic CF-LV8, CF-SV7, CF-SV8 and CF-LV9.

What is the correct way to install the CF-VZSU1CJS battery and which step is often missed?

Power off the laptop, disconnect the AC adapter, slide the release latch, insert the new 5900 mAh pack until it clicks, then reconnect power and let it charge to 100 % before first use — skipping the full initial charge is the common mistake.

When will the CF-VZSU1CJS battery need replacement and what indicates it?

As a lithium-ion cell, it gradually loses capacity; plan to replace it once run-time falls far short of the rated 43 Wh or the system reports a significant wear level.

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