42Wh Panasonic CF-VZSU1431U Battery

42Wh CF-VZSU1431U Battery for Panasonic Toughbook CF-30, CF-31, CF-52 and CF-MX Series

This 42Wh Panasonic CF-VZSU1431U battery is designed for compatible Panasonic
Toughbook laptops, including selected CF-30, CF-31,
CF-52, CF-MX3, CF-MX4, and
CF-MX5 series models. It is a suitable choice when your current battery drains
quickly, no longer holds a charge, or your Panasonic Toughbook needs stable portable power again.

With an 11.1V output voltage, 3900mAh / 42Wh capacity, and
3-cell battery design, this battery supports mobile work, field service,
diagnostics, warehouse use, business travel, and everyday portable operation.

Product Information

Compatible Part Numbers

Please compare the part number printed on your current battery before ordering. This battery is
suitable for the following Panasonic battery part numbers:

• Panasonic CF-VZSU1430
• Panasonic CF-VZSU1431U

Compatible Model Series

This Panasonic CF-VZSU1431U battery is designed for the following Panasonic Toughbook model series.
Please check both your device model and battery part number before placing your order.

Panasonic Toughbook CF-31 Series

• Panasonic CF-31J
• Panasonic CF-31K
• Panasonic CF-31M
• Panasonic CF-31N
• Panasonic CF-31P
• Panasonic CF-31Q
• Panasonic CF-31R
• Panasonic CF-31S
• Panasonic CF-31U
• Panasonic CF-31V
• Panasonic CF-31W
• Panasonic CF-31X
• Panasonic CF-31Y
• Panasonic Toughbook CF-31
• Panasonic Toughbook CF-31 GT2AXdm
• Panasonic Toughbook CF-31 GT2AXPM
• Panasonic Toughbook CF-31 MK1
• Panasonic Toughbook CF-31 Mk2
• Panasonic Toughbook CF-31A
• Panasonic Toughbook CF-31MK1

Panasonic Toughbook CF-30 Series

• Panasonic Toughbook CF-30

Panasonic Toughbook CF-52 Series

• Panasonic Toughbook CF-52
• Panasonic Toughbook CF-52M
• Panasonic Toughbook CF52
• Panasonic Toughbook CF52M

Panasonic Toughbook CF-MX Series

• Panasonic Toughbook CF-MX3
• Panasonic Toughbook CF-MX4
• Panasonic Toughbook CF-MX5

Note: Panasonic Toughbook batteries may have similar part numbers but different
physical shapes, locking structures, connector positions, or casing designs. Please confirm the
physical battery shape and connector compatibility before purchase.

When Should You Replace Your Panasonic Toughbook Battery?

If your Panasonic Toughbook no longer provides enough runtime for normal use, replacing the battery
can help restore stable portable performance without replacing the entire device.

• The battery drains much faster than before.
• The laptop shuts down unexpectedly during use.
• The battery percentage drops suddenly or behaves abnormally.
• The laptop only works when connected to the charger.
• The battery does not charge to full capacity.
• The system shows a battery health or charging warning.

Why Buy This CF-VZSU1431U Battery?

• Designed for compatible Panasonic Toughbook models: suitable for selected CF-30, CF-31, CF-52,