Lenovo V540S SP/B L18M4PF0 15.36V 45Wh 4-cell Notebook Battery (5B10S73499)

When your Lenovo V540S starts losing charge faster than expected, this replacement battery restores full mobility. It is a genuine Lenovo part (5B10S73499) built to the original specifications, so you can work unplugged for hours without carrying a power adapter everywhere.

Key specifications

• Battery type: Lithium-ion (Li-ion)
• Voltage: 15.36 V
• Capacity: 45 Wh
• Cells: 4-cell
• Model: L18M4PF0
• Compatibility: Lenovo V540S series
• Colour: Black
• Condition: New
• Rechargeable: Yes
• Installation: Internal
• Safety: Overcharge, over-discharge, overcurrent, short circuit protection

Why choose it

This battery meets the same quality and safety standards as the original component. Its 45 Wh capacity provides a solid balance between runtime and weight, while the integrated protection circuits guard against common electrical hazards. Because it is designed specifically for the V540S, you get a precise fit and reliable communication with the laptop's power management system.

Ideal use cases

• Replacing a worn-out or swollen original battery
• Keeping a spare battery for travel or long workdays
• Restoring a used Lenovo V540S to full portability
• Extending the life of an older laptop without buying a new one

Good to know

Installation requires opening the laptop case; if you are not comfortable doing this yourself, have a qualified technician perform the replacement. For best longevity, avoid extreme temperatures and deep discharges when possible. The battery is brand new and has never been used.