L18M4PF1 L18D4PF1 69Wh Battery Replacement for Lenovo Yoga C940

Our review of the L18M4PF1 L18D4PF1 battery finds it best suited to owners of select Lenovo Yoga and IdeaPad 15-in models who need a direct, like-for-like replacement. The single biggest reason to consider this pack is straightforward compatibility: it matches multiple Lenovo part numbers and ships with matching installation tools and instructions, making swap-outs simple for anyone comfortable opening a laptop. It is a 15.36V, 69Wh Li-ion pack rated for roughly 500 recharge cycles, so buyers who prioritize a cost-effective way to restore run time will find it practical.

Key Features

• Compatibility: Replaces a long list of Lenovo part numbers so users can get a direct fit for Yoga C940-15IRH, Yoga 9-15IMH5 and IdeaPad S740-15IRH models without modification.
• Capacity: The 69Wh (4500mAh) rating delivers a full-capacity replacement option for laptops that originally shipped with similar battery size, restoring expected on-battery runtime when the original has degraded.
• Voltage and chemistry: The 15.36V Li-ion design matches original electrical specifications to maintain system stability and charging behavior.
• Installation convenience: Each package includes a set of matching installation tools and printed instructions, reducing the barrier for do-it-yourself replacement.
• Cycle life: Rated for up to 500 recharge cycles, offering a multi-year usable lifespan under normal charging habits.
• Safety compliance: Built-in circuit protection and CE/FCC/ROHS/UL certifications provide basic safety and regulatory assurance for laptop use.

Who It's For

This battery is for owners of the specified Lenovo 15-in Yoga and IdeaPad models who need a functional, OEM-compatible replacement and are comfortable performing a simple battery swap. It suits students, professionals, and home users who want to avoid professional repair costs and restore portable runtime affordably.

It is not ideal for users who demand guaranteed factory-level endurance every time; customer reports are mixed on actual run time after installation, with some users experiencing shorter-than-expected life. Those who require manufacturer warranty service or peak battery longevity under heavy load may prefer an official service center replacement.

Pros & Cons

Pros

• Direct compatibility with many Lenovo part numbers makes installation straightforward for listed laptop series.
• Includes installation tools and instructions, letting competent users replace the battery themselves.
• 69Wh capacity and 15.36V rating match original specifications to restore expected system behavior.
• Certifications and built-in protection improve safety compared with unregulated third-party packs.

Cons

• Customer experiences on battery life are mixed; some units report shorter run time than expected.
• As a third-party replacement, long-term performance may vary compared with factory-sourced batteries.

Specifications

Battery model	L18M4PF1 / L18D4PF1
Voltage	15.36V
Capacity	69Wh / 4500mAh
Cell count	4-Cells
Chemistry	Li-ion
Package contents	1 battery, matching installation tools, instructions
Estimated cycles	Up to 500 recharge cycles

Our Verdict

The L18M4PF1 L18D4PF1 replacement is a practical, cost-conscious option for owners of the specified Lenovo 15-in Yoga and IdeaPad laptops who need a direct swap to restore mobile runtime. It matches the original electrical specs, includes tools and instructions, and meets common safety certifications, making it good value for DIY repairs, though actual on-battery life can vary between units.

Frequently Asked Questions

Will this battery fit my Yoga C940?
It is listed as compatible with Yoga C940-15IRH and several other 15-in Lenovo models; match the L18M4PF1 or L18D4PF1 part number to be sure.

Does it come with installation tools?
Yes, each package includes a set of matching installation tools and printed instructions to assist with replacement.

What kind of warranty is offered?
The seller provides a 30-day full refund policy and a 12-month free replacement for non-human factors, with email support available within 24 hours.