BTI FJ-B Lithium Ion Rechargeable Battery - 11. 1V DC 4400 mAh for LifeBook Notebooks
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Product Features
Product Overview
The BTI FJ-B Lithium Ion Rechargeable Battery is a reliable power solution designed specifically for Fujitsu LifeBook B-series notebooks. This proprietary battery pack delivers consistent 11.1V DC output with 4400 mAh capacity, ensuring your mobile workstation maintains productivity through extended use cycles.
Engineered with Lithium Ion chemistry, this battery offers efficient energy delivery through controlled electrochemical reactions. The rechargeable design supports multiple charge cycles, providing long-term value compared to disposable alternatives. When your original notebook battery begins to degrade, this direct replacement maintains your device's mobility without compromising performance.
This section brings together practical product details such as Application/Usage, Battery Rechargeable, Battery Size, Compatibility, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
In practical terms, this overview should help a buyer understand what the product is, the type of environment it suits, and the core reasons it may be chosen over a more generic alternative. That context is especially useful for business purchasing, where fit, consistency, and ease of use usually matter as much as individual specifications.
Technical Overview
This notebook battery utilizes advanced Lithium Ion (Li-Ion) technology that balances energy density with thermal stability. The 4400 mAh capacity provides substantial runtime between charges, while the 11.1V DC output matches the voltage requirements of compatible LifeBook models.
The proprietary form factor ensures precise physical compatibility with notebook battery compartments, eliminating fitment concerns. Rechargeable functionality allows repeated use through hundreds of charge cycles, maximizing return on investment compared to single-use alternatives.
This section brings together practical product details such as Application/Usage, Battery Rechargeable, Battery Size, Compatibility, 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
This BTI battery delivers several practical benefits for notebook users requiring reliable mobile power. The Lithium Ion chemistry provides stable voltage regulation throughout discharge cycles, preventing the power fluctuations that can affect system performance.
Extended Notebook Runtime
With 4400 mAh capacity, this battery supports longer work sessions between charges, reducing interruptions during critical tasks.
- 11.1V DC ensures steady power delivery
- Compatible with multiple LifeBook models
- Rechargeable design for repeated use
Cost-Effective Replacement
When original equipment batteries degrade, this compatible replacement restores full mobility without notebook replacement costs.
- Direct fit for specified LifeBook models
- 18-month warranty coverage
- Multiple charge cycle capability
Deployment / Use Cases
The BTI FJ-B battery serves as both a replacement solution for aging notebook batteries and a supplemental power source for extended mobility requirements. Organizations maintaining Fujitsu LifeBook fleets can standardize on this compatible battery to simplify procurement and inventory management.
Field technicians, mobile professionals, and remote workers relying on LifeBook notebooks benefit from the extended runtime this battery provides. Educational institutions and corporate environments deploying these specific LifeBook models can maintain device uptime with readily available replacement batteries.
This section brings together practical product details such as Application/Usage, Battery Rechargeable, Battery Size, Compatibility, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Highlights
- Lithium Ion (Li-Ion) chemistry for efficient energy delivery
- 11.1V DC output ensures steady notebook power supply
- 4400 mAh capacity extends runtime between charges
- Rechargeable design supports multiple use cycles
- Compatible with Fujitsu LifeBook B-series notebooks
- Proprietary battery size for precise fitment
- Direct replacement for aging notebook batteries
- 18-month limited warranty coverage
Specifications
| Specifications | |
|---|---|
| Manufacturer | Battery Technology, Inc |
| Manufacturer Part Number | FJ-B |
| Brand Name | BTI |
| Product Name | Lithium Ion Rechargeable 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 | 4400 mAh |
| Output Voltage | 11.1 V DC |
| Miscellaneous | |
| Compatibility | LifeBook Series Notebook : B-2542 B-2562 B-2566 B-2610 B-2620 B-2630 |
| Warranty | |
| Limited Warranty | 18 Month |
FAQ
What notebook models is this BTI battery compatible with?
This BTI FJ-B Lithium Ion Rechargeable Battery is specifically designed for Fujitsu LifeBook models B-2542, B-2562, B-2566, B-2610, B-2620, and B-2630. The proprietary battery size ensures physical compatibility with these notebook's battery compartments. Always verify your specific LifeBook model before purchasing to ensure proper fitment and electrical compatibility.
What is the battery capacity and how does it affect runtime?
This battery has a 4400 mAh (milliampere-hour) capacity, which determines how much energy it can store and deliver to your notebook. Higher capacity typically translates to longer runtime between charges, though actual usage time depends on your notebook's power consumption, screen brightness, processor load, and connected peripherals. The 4400 mAh rating provides substantial power reserve for typical mobile computing tasks.
What voltage does this battery output?
The BTI FJ-B battery delivers 11.1 volts DC (direct current), which matches the voltage requirements of compatible Fujitsu LifeBook notebooks. Consistent voltage regulation is crucial for stable system operation, and this battery maintains steady 11.1V DC output throughout its discharge cycle, preventing the power fluctuations that can cause system instability or premature shutdown.
Is this battery rechargeable and how many cycles does it support?
Yes, this is a rechargeable Lithium Ion battery designed for multiple charge cycles. While the exact cycle count depends on usage patterns and charging practices, Lithium Ion technology typically supports hundreds of charge cycles before significant capacity degradation occurs. The rechargeable design makes this a cost-effective alternative to disposable batteries, providing long-term value through repeated use.
What warranty coverage does this BTI battery include?
This BTI Lithium Ion Rechargeable Battery comes with an 18-month limited warranty from the manufacturer. This warranty covers defects in materials and workmanship under normal use conditions. Warranty terms may vary, so retain your purchase documentation for any potential claims. The 18-month coverage period provides substantial protection for your investment in this notebook power solution.
When should I consider replacing my notebook battery with this BTI model?
Consider this BTI FJ-B battery when your original notebook battery shows signs of degradation, such as significantly reduced runtime, failure to hold a charge, or physical swelling. This compatible replacement restores your notebook's mobility without requiring device replacement. It's also suitable as a supplemental battery for users who need extended runtime beyond what a single battery provides, allowing hot-swapping during extended work sessions.
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 11.1 V DC, which helps position the unit for the right load level and installation role.
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