Description
Product Overview
This genuine Lenovo L12M4P21 54Wh battery is designed as a direct replacement for your original laptop battery. Manufactured to meet strict quality standards, it ensures reliable performance and safety.
Specifications
- Part Number: L12M4P21
- Capacity: 54Wh
- Voltage: 11.1V
- Chemistry: Lithium-ion
- Condition: Brand new
Compatibility Information
Part Numbers (P/N)
- 121500225
- 35012654
- L13S4P21
- 121500156
Models
- Lenovo Yoga 2 Pro 13
- Lenovo Yoga 2 Pro 13 (20266)
- Lenovo Yoga 2 Pro 13 (59386544)
- Lenovo Yoga 2 Pro 13 (59386549)
- Lenovo Yoga 2 Pro 13 (59425502)
- Lenovo Yoga 2 Pro 13 Y50-70AM-IF
- Lenovo Yoga 2 Pro 13 Y50-70AS-IS
- Lenovo Yoga 2 Pro 13 Y50-70AS-ISE
Note: This battery is compatible with additional part numbers and models beyond those listed. If you’re unsure about compatibility, please leave your specific laptop model or current battery part number in the order notes, and we’ll verify before shipping.
When to Replace Your Battery
Consider replacing your laptop battery if you notice any of these common signs:
| Symptom | Description | Recommended Action |
|---|---|---|
| Short Runtime | Battery drains significantly faster than original capacity, lasting less than 1 hour | Replace battery |
| Swelling/Bulging | Battery case appears swollen or distorted | Immediate replacement for safety |
| Not Charging | Battery won’t charge despite working charger | Replace battery |
| Overheating | Battery becomes unusually hot during use or charging | Replace battery |
| System Errors | Laptop shows “battery not detected” or similar errors | Replace battery |
| Age | Battery is over 2-3 years old with reduced performance | Consider replacement |
Expected Battery Life
Based on 54Wh capacity and typical usage patterns:
| Usage Scenario | Estimated Runtime | Notes |
|---|---|---|
| Web Browsing | 3-4 hours | Light browsing, email, documents |
| Video Streaming | 2-3 hours | HD video playback at medium brightness |
| Office Work | 3-4 hours | Word processing, spreadsheets, presentations |
| Gaming | 1-1.5 hours | Graphics-intensive applications |
| Standby/Sleep | 24+ hours | Laptop in sleep or hibernation mode |
Note: These are conservative estimates for a new battery in older hardware. Actual runtime may be shorter than when your device was new due to increased software demands and general hardware aging.
Purchase Benefits
- One business day shipping
- 30-day money-back guarantee
- One-year warranty
- In stock ready to ship
- Brand new product
- Free shipping
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