Description
Product Overview
This genuine Lenovo L17D2P31 35.8Wh battery is designed as a direct replacement for your original laptop battery. Manufactured to meet strict quality standards, this battery ensures reliable performance and safety.
Specifications
- Voltage: 7.6V
- Capacity: 35.8Wh
- Chemistry: Lithium-ion
- Condition: Brand new
- Part Number: L17D2P31
Compatible Part Numbers
- SB18C21784
- SB18C21785
- SB18C46557
Compatible Models
- Lenovo Yoga Book C930 (ZA3S/ZA3T)
Compatibility Note
We’ve listed the most common compatible part numbers and models above, but this battery fits additional configurations. If you don’t see your specific model or part number listed, please leave it in the order notes during checkout. We’ll verify compatibility before shipping.
When to Replace Your Battery
| Situation | Description |
|---|---|
| Short Runtime | Battery drains quickly even after full charge, lasting significantly less than original capacity |
| Swelling/Bulging | Battery case appears swollen or distorted, indicating potential safety hazard |
| Charging Issues | Battery won’t charge fully, stops charging intermittently, or requires frequent repositioning |
| System Warnings | Laptop displays “replace battery” warnings or shows incorrect charge percentage |
| Age | Battery is 2-3 years old with noticeable performance degradation |
| Overheating | Battery becomes unusually hot during charging or normal use |
Estimated Battery Life
| Usage Scenario | Estimated Duration |
|---|---|
| Web Browsing & Email | 4-5 hours |
| Document Editing | 5-6 hours |
| Video Streaming | 3-4 hours |
| Gaming | 1.5-2.5 hours |
| Standby/Sleep Mode | 24+ hours |
Note: These are conservative estimates for a new battery used with older hardware. Actual battery life may be shorter than when your device was new due to increased software demands and natural hardware aging.
Shipping & Warranty
- Ships within 1 business day
- 30-day money back guarantee
- 1-year manufacturer warranty
- Free shipping
- In stock – ready to ship
- 100% brand new product
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