35.8Wh Lenovo L17D2P31 Battery

Name: 35.8Wh Lenovo L17D2P31 Battery
SKU: Battery-US-Lenovo-L17D2P31-35.8Wh
Availability: InStock

$75.00

Free Shipping | Installation tools included

Reliable battery for work, study, or travel.

Built-in protection: overcharge, over-discharge, short circuit, overcurrent & temperature safety.

Important Shipping Notice (Chinese New Year 2026 - Batteries)
During the Chinese New Year 2026 holiday period, laptop battery orders may take longer than usual to deliver. This delay is mainly caused by battery sourcing (most laptop batteries are manufactured in China) and holiday logistics congestion.

Estimated Battery Delivery Time
Please allow up to 30 days for delivery during this period.

If You Need a Battery ASAP
We completely understand that a working laptop is time-sensitive. If you need a battery urgently, please order with caution. For the fastest solution, you may prefer a local seller or another supplier that is not impacted during the holiday season. While we are sorry we may not be the quickest option for urgent cases, we will be genuinely happy if you can get your problem solved sooner.

If You are Not in a Hurry
If you can wait, you can place your order with confidence. It is very common to keep using a laptop with reduced battery runtime by plugging it in when needed. We will ship as soon as sourcing and logistics allow, keep your order moving, and deliver a high-quality, reliable battery that fits your device properly.

Thank you for your understanding and support.

SKU: Battery-US-Lenovo-L17D2P31-35.8Wh Category: Battery for Lenovo Tag: Lenovo L17D2P31 Battery

Description
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Description

Product Information

Item Condition: New
Color: Black
Capacity: 35.8 Wh
Output Voltage (Volts):7.7 Volts
Number of Cells:2 Cells
Package included:1 x Battery for Lenovo
Warranty: 12 Months / 30-Day Return
Compatible part number (not all):
Lenovo SB18C21784
Lenovo L17D2P31
Lenovo SB18C21785,Lenovo SB18C46557…
Compatible Model Series (partial list):
Lenovo Yoga Book C930 (ZA3S/ZA3T)
…

Premium 35.8Wh L17D2P31 Battery for Lenovo Yoga Book C930

Empower your dual-screen creativity with the L17D2P31 premium replacement battery. Specifically engineered for the Lenovo Yoga Book C930 (ZA3S/ZA3T), this 7.7V battery delivers 35.8Wh of optimized power. Designed to sustain both the high-resolution main display and the innovative E-ink keyboard screen, it ensures your ultra-portable workstation remains ready for sketching, typing, and reading anywhere.

Technical Specifications

Part Number	L17D2P31 / SB18C21784 / SB18C21785 / SB18C46557
Voltage	7.7 Volts
Capacity	35.8 Wh / 4650 mAh
Cell Configuration	2-Cell High-Density Li-Polymer
Condition	Brand New
Warranty	12 Months / 30-Day Return

Verified Device Compatibility

Tailored specifically for the second-generation Yoga Book:

Compatible Laptop Series:

Lenovo Yoga Book C930 Series (10.8-inch Dual Screen)
Yoga Book C930 – Type ZA3S
Yoga Book C930 – Type ZA3T

Replacement Part Numbers:

L17D2P31
SB18C21784
SB18C21785
SB18C46557

Why Choose the L17D2P31 Battery?

Ultra-Slim Profile: Precision-manufactured to fit the extremely thin internal cavity of the C930 without causing pressure on the dual screens.
E-ink Optimized: Built with high-grade cells that handle the unique power cycles of the E-ink display and main LCD simultaneously.
Intelligent BMS: Features advanced circuit protection to prevent over-charging, overheating, and short circuits.
Seamless Recognition: Fully compatible with Lenovo system firmware for accurate battery percentage and health reporting.