BOWEIRUI 69Wh L18M4PF1 Replacement Battery for Lenovo

BOWEIRUI L18M4PF1 is a direct-fit 69Wh (15.36V, 4500mAh) 4-cell lithium-ion replacement battery designed to restore full runtime to select Lenovo Yoga and IdeaPad 15-inch models.

If your Lenovo Yoga C940-15IRH, Yoga 9-15IMH5, or IdeaPad S740-15IRH has shortened battery life, this replacement pack offers a factory-compatible power source engineered to match original specifications. The unit ships with matching installation tools, an instruction sheet, and a longer interface cable for easy connection in tight chassis layouts. BOWEIRUI builds the battery to meet common international safety standards and includes built-in circuit protection for stable charging and discharge.

What exact specifications does this battery provide?

This battery provides 69Wh of energy with a nominal voltage of 15.36V and a rated capacity of 4500mAh across four cells. It is a lithium-ion pack with integrated protection circuitry to prevent overcharge, short circuits, and excessive discharge.

• Model: L18M4PF1 (compatible with L18D4PF1)
• Voltage: 15.36V, Capacity: 69Wh / 4500mAh
• Cell count: 4-cell Li-ion with built-in safety circuits
• Includes: installation tools, instructions, and a long interface cable

Which Lenovo models and part numbers are compatible?

Designed as a drop-in replacement for a range of 15-inch Lenovo Yoga and IdeaPad machines, this battery is compatible with specific SKUs and service part numbers used by Lenovo and aftermarket vendors. Confirm your laptop’s part number before ordering.

• Compatible laptops: Lenovo Yoga C940-15IRH (Type 81TE), Yoga 9-15IMH5 series, IdeaPad S740-15IRH (Type 81NW / 81NX)
• Interchangeable part numbers: L18M4PF1, L18D4PF1, 5B10T83737, 5B10T83738, 5B10U65276, and others listed
• Check your battery label or system settings to confirm exact model fit

How reliable and safe is the replacement battery?

BOWEIRUI builds this pack to satisfy CE, FCC, RoHS and UL expectations and includes internal circuit protection to keep charging stable and safe. The cells are cycle-rated and the product is tested to meet typical consumer laptop endurance and safety benchmarks.

• Certifications: CE, FCC, RoHS, UL-compliant manufacturing standards
• Protection: overcharge, over-discharge, short-circuit safeguards
• Service life: rated for hundreds of recharge cycles when used per guidelines

What’s included and how easy is installation?

The battery arrives with a tool set matched to the installation screws, a printed instruction sheet, and a longer interface cable to make connection easier inside confined cases. No specialized equipment or soldering is required for a straightforward swap if you follow the included steps.

• Package contents: 1 x L18M4PF1 battery, installation tools set, instructions
• Connector: extended interface cable for improved reach and accessibility
• Support: 24/7 email customer support from BOWEIRUI for installation questions

Who is this for: This replacement battery is intended for owners of compatible Lenovo 15-inch convertible and clamshell laptops who need to restore usable runtime without replacing the entire notebook. It suits technicians, DIY laptop owners comfortable with basic disassembly, and businesses managing a fleet of Yoga or IdeaPad S740 units seeking an OEM-style replacement at an aftermarket price. If you want safety-checked cells, a matching form factor, and helpful installation accessories, this pack is built for your laptop model.