Description
Overview: High-Quality Replacement Battery for Lenovo ThinkPad X1 Yoga Gen 3
The L17C4P71 Li-Ion Rechargeable Laptop Battery is a premium-quality power unit specifically engineered to replace the internal battery in the Lenovo ThinkPad X1 Yoga 3rd Generation (2018) series. This battery is an essential component for restoring your laptop’s portable performance, maximizing uptime, and prolonging usability when the original battery no longer holds sufficient charge. It’s widely compatible with the exact OEM (Original Equipment Manufacturer) part numbers used in Lenovo’s official hardware designs, ensuring a precise fit and dependable operation.
Battery Specifications & Build Quality
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Battery Model: L17C4P71
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Battery Type: Rechargeable Lithium-Ion (Li-Ion) — a standard, reliable chemistry known for high energy density and stable performance.
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Voltage: 15.36 V, matching the original configuration of the 2018 ThinkPad X1 Yoga to ensure safe compatibility and proper power delivery.
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Capacity: Around 54 Wh (Watt-hours) — a capacity that delivers balanced performance for everyday productivity tasks, multimedia, and mobile work. (Some listings note similar specs such as ~3420–3520 mAh matched to this Wh rating).
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Cell Count: 4-cell configuration — designed to maximize energy within the slim chassis without compromising safety.
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Color: Sleek black, consistent with the original Lenovo ThinkPad aesthetic.
This battery unit is typically manufactured with high-grade cells and includes built-in safety circuitry that protects against overcharge, short circuits, overheating, and voltage spikes. Reliable installations also meet basic certification standards such as CE/FCC/RoHS — ensuring compliance with safety and environmental regulations.
Compatibility & Precise Fit
The L17C4P71 battery is designed specifically for the Lenovo ThinkPad X1 Yoga 3rd Gen (2018) models — including variants like:
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20LD, 20LE, 20LF, 20LG series laptops
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Compatible with OEM part numbers including 01AV474, 01AV475, SB10K97623, SB10K97624, 01AV499, SB10K97638, and 02DL003 — which confirms it directly matches the original Lenovo inventory codes.
It will not fit versions of the X1 Yoga from other generations (such as Gen 1, Gen 2, Gen 4, or newer models) because those have different battery shapes, voltages, and specifications.
Performance & User Experience
When installed, this battery restores your ThinkPad’s ability to run unplugged, giving you reliable mobile productivity without needing to remain tethered to a power outlet. With proper battery management — such as calibrating cycles and using power profiles — you can expect good battery life for typical everyday use like web browsing, office work, and media playback.
Many users emphasize that OEM or OEM-equivalent batteries like this tend to perform better over time than generic replacements, maintaining stable performance and reporting accurate health levels within Windows or Lenovo software.
Installation & Safety Notes
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This battery is internal, meaning you’ll likely need to open the back cover of the laptop to install it. For many people, having a certified technician perform the replacement is recommended to avoid damage to delicate internal components.
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Avoid using batteries that are not confirmed compatible, under-specified, or from unknown sellers, as this can lead to poor performance or risk of system errors and shutdowns.
Why Choose This Battery
Best Quality L17C4P71 Li-Ion Rechargeable Black Laptop Battery stands out because it:
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Matches OEM standards of voltage and capacity for reliable, genuine-like performance.
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Provides restored mobility for your ThinkPad X1 Yoga 3rd Gen.
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Uses high-grade cells and built-in protection, enhancing safety and durability.
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Fits perfectly with original Lenovo part numbers and chassis design.
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