BTI LN-X121E Notebook Battery - 5600 mAh 60 Wh 10. 8V DC - Proprietary Size for Lenovo ThinkPad X121E X130E X131E
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Product Features
Product Overview
The BTI LN-X121E is a high-performance rechargeable notebook battery engineered as a direct replacement for Lenovo ThinkPad X121E, X130E, and X131E models. This proprietary-size battery delivers reliable power with a 5600 mAh capacity and 60 Wh energy rating, ensuring extended runtime for business and mobile computing needs.
Constructed with Lithium Ion (Li-Ion) chemistry and featuring six cells, the battery provides stable 10.8V DC output to maintain consistent notebook performance. It is designed to meet WEEE environmental standards and comes with an 18-month limited warranty, offering a sustainable and dependable power solution for aging or depleted notebook batteries.
This section brings together practical product details such as Application/Usage, Battery Rechargeable, Battery Size, Compatible to OEM Part Number, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Technical Overview
This battery integrates advanced Li-Ion technology to achieve a 5600 mAh capacity and 60 Wh energy output, supporting prolonged notebook operation between charges. The 10.8V DC voltage aligns precisely with OEM specifications, ensuring compatibility and safe power delivery to compatible Lenovo ThinkPad models.
The proprietary form factor matches the exact dimensions and connector configuration of original batteries, enabling seamless installation without modification. With six internal cells, the battery balances energy density and durability, while its rechargeable design reduces waste compared to disposable alternatives.
This section brings together practical product details such as Application/Usage, Battery Rechargeable, Battery Size, Compatible to OEM Part Number, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
A strong technical summary explains how the product's interfaces, hardware profile, and operating characteristics work together in real deployment. Buyers often need this context to confirm compatibility with existing devices, expected performance in daily use, and whether installation will be straightforward for IT staff or end users.
Key Product Advantages
The BTI LN-X121E battery offers several advantages for notebook users seeking reliable replacement power. Its optimized charging efficiency reduces recharge times compared to many alternatives, minimizing downtime and enhancing productivity during mobile use.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Enhanced Compatibility, Environmental Responsibility.
Enhanced Compatibility
Specifically designed for Lenovo ThinkPad X121E, X130E, and X131E notebooks, this battery replaces OEM part numbers 42T4951 and 42T4952, ensuring perfect fit and electrical compatibility.
- Direct replacement for OEM parts
- No adapter or modification needed
Environmental Responsibility
As a rechargeable battery compliant with the WEEE Directive, it supports sustainable electronics disposal and reduces environmental impact compared to single-use batteries.
- WEEE-compliant
- Reduces electronic waste
Deployment / Use Cases
This battery is ideal for extending the lifespan of compatible Lenovo ThinkPad notebooks by replacing worn-out or failing original batteries. It serves as a cost-effective solution for businesses and individuals needing reliable power without purchasing new hardware.
Common use cases include office environments where notebooks are used for daily tasks, educational settings requiring portable computing, and field operations where consistent battery performance is critical. The battery's proprietary design ensures it integrates seamlessly into existing systems, providing a straightforward upgrade path.
This section brings together practical product details such as Application/Usage, Battery Rechargeable, Battery Size, Compatible to OEM Part Number, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Highlights
- 5600 mAh capacity for extended notebook runtime
- 60 Wh energy output at 10.8V DC for stable power delivery
- Proprietary size compatible with Lenovo ThinkPad X121E, X130E, X131E
- Lithium Ion (Li-Ion) chemistry with six-cell construction
- Rechargeable design reduces environmental waste
- Replaces OEM part numbers 42T4951 and 42T4952
- 18-month limited warranty for added reliability
- WEEE-compliant for responsible disposal
Specifications
| Specifications | |
|---|---|
| Manufacturer | Battery Technology, Inc |
| Manufacturer Part Number | LN-X121E |
| Brand Name | BTI |
| Product Name | Notebook Battery |
| Product Type | Battery |
| Battery Information | |
| Application/Usage | Notebook |
| Battery Rechargeable | Yes |
| Battery Size | Proprietary Battery Size |
| Battery Chemistry | Lithium Ion (Li-Ion) |
| Battery Capacity | 5600 mAh |
| Battery Energy | 60 Wh |
| Number of Cells | 6 |
| Output Voltage | 10.8 V DC |
| Miscellaneous | |
| Compatible to OEM Part Number | 42T4951 42T4952 |
| Compatibility | Lenovo ThinkPad Notebooks: X121E X130E X131E |
| Country of Origin | China |
| Environmentally Friendly | Yes |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 18 Month |
FAQ
What Lenovo ThinkPad models is the BTI LN-X121E battery compatible with?
The BTI LN-X121E battery is specifically designed for Lenovo ThinkPad X121E, X130E, and X131E notebooks. It serves as a direct replacement for OEM part numbers 42T4951 and 42T4952, ensuring exact fit and electrical compatibility without requiring adapters or modifications.
What is the capacity and energy rating of this notebook battery?
This battery offers a 5600 mAh capacity and 60 Wh energy rating, providing substantial runtime for compatible Lenovo ThinkPad notebooks. The 10.8V DC output voltage matches OEM specifications to deliver stable and consistent power during use.
Is the BTI LN-X121E battery rechargeable, and what chemistry does it use?
Yes, the BTI LN-X121E is a rechargeable battery that uses Lithium Ion (Li-Ion) chemistry. This technology provides efficient energy storage, faster recharge times compared to some alternatives, and reliable performance across multiple charge cycles.
What warranty coverage does this battery include?
The BTI LN-X121E battery comes with an 18-month limited warranty. This coverage supports reliability and gives users confidence in its performance as a replacement power solution for compatible Lenovo ThinkPad notebooks.
How does this battery support environmental sustainability?
As a rechargeable battery compliant with the Waste Electrical and Electronic Equipment (WEEE) Directive, it reduces electronic waste by replacing disposable batteries. Its Li-Ion chemistry and durable design also contribute to longer product life and responsible disposal practices.
What are the key advantages of using this battery over original equipment?
This battery provides a cost-effective replacement with comparable performance to OEM parts, including 5600 mAh capacity and 60 Wh energy. It features optimized charging efficiency, proprietary sizing for seamless installation, and an 18-month warranty, making it a practical choice for extending notebook usability.
What power capacity is listed for this UPS?
Power specifications help show where the unit fits best, including the type of load level, electrical environment, and backup role it is intended to support. These are usually the most decision-critical facts in a UPS or power-protection comparison.
What voltage details are listed?
The listed power specification is 10.8 V DC, which helps position the unit for the right load level and installation role.
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