TREE.NB L18C4P71 Laptop Battery for Lenovo ThinkPad X1 Yoga 4th/7th/8th Gen – 51Wh 4-Cell

Extend ThinkPad uptime with a trusted TREE.NB battery

Power your Lenovo ThinkPad X1 Yoga and X1 Carbon with the TREE.NB L18C4P71. This 4‑cell, 51Wh battery is designed to support everyday productivity, whether you’re drafting a report between flights or tuning in during a long commmute. Marketed as 100% new from the original manufacturer and built with high‑grade cells, it aims to deliver steady performance across multiple charging cycles while maintaining a light, balanced feel in the laptop bag.

Key specifications at a glance

• Voltage: 15.36V; Capacity: 51Wh; Cells: 4-cell
• Includes: 1x L18C4P71 battery, an auxiliary installation tool, and a user manual
• Replacement part numbers include L18C4P71, L18L4P71, L18M4P72, 02DL005, 02DL006, 02DL004, SB10K97643, SB10K97642, SB10K97644

What models it fits

• ThinkPad X1 Yoga 4th Gen (2019) and X1 Yoga 5th Gen (2020)
• ThinkPad X1 Carbon 7th Gen (2019) and X1 Carbon 8th Gen (2020)
• Broad compatibility across Yoga and Carbon lines within these generations

Real‑world use and benefits

With a 51Wh capacity, you may enjoy longer periods between charges, ideal for a day of meetings, campus work, or travel tasks. The four‑cell design helps keep the weight manageable for everyday carry, while the battery’s construction supports reliable power when you need it most.

The unit is described as 100% new from the manufacturer and built with grade A cells, which can contribute to consistent performance across cycles. Expect a straightforward swap thanks to the included installation tool and step‑by‑step user manual.

Quality, safety, and support

• Grade A cells aimed at dependable power delivery
• 100% new from the original manufacturer for reliability
• Auxiliary installation tool and user manual included for guided installation

Customer care is highlighted with around‑the‑clock email support. If you run into questions during setup or use, a friendly team is available to assist and clarify details as needed.

Usage notes and recommendations

Think of this battery as a possibility to extend unplugged work sessions and to refresh an older device’s roaming capability. Always verify model compatibility and part numbers before ordering, and follow the included manual to ensure a proper fit during replacement.