Lenovo ThinkPad T490 20N2002ACA battery
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Battery type: Lithium‑ion polymer (Li‑Po), internal
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Capacity: 49Wh–55Wh (≈4400mAh)
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Voltage: 11.52V / 11.55V
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Cell count: 3‑cell
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Part numbers: L18M3P73, L18L3P73, L18C3P73
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Compatible FRUs: 02DL007, 02DL008, 02DL009, 5B10W13897
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Compatibility: ThinkPad T490 (20N2, 20N3), T495, and P43s series
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Rapid Charge support: 80% charge in ~60 minutes with a 65W USB‑C adapter
Lenovo ThinkPad T490 20N2002ACA battery
This battery is ideal for professionals, students, and office users who rely on their laptops for work, travel, and multitasking. With a 57Wh capacity, it provides strong backup time while maintaining safety and efficiency.
The ThinkPad T490 series is widely used in business environments, and replacing the battery helps extend the laptop’s lifespan without needing a full upgrade.
Lenovo ThinkPad T490 20N2002ACA Price in Kenya
| Product | Price |
|---|---|
| Lenovo ThinkPad T490 20N2002ACA 57Wh Battery | KSh 6,500 |
Lenovo ThinkPad T490 20N2002ACA Key Specifications
| Specification | Details |
|---|---|
| Battery Type | Lithium-ion / Lithium-polymer (variant dependent) |
| Capacity | 57Wh (approx. 50–57Wh range) |
| Voltage | 11.52V – 11.58V |
| Model Compatibility | Lenovo ThinkPad T490 (20N2002ACA series) |
| Cell Configuration | 3-cell internal battery |
| Condition | Replacement / OEM compatible |
| Color | Black |
| Installation | Internal (non-removable type) |
| Battery Life | 6–10 hours (usage dependent) |
Design and Build
The Lenovo T490 20N2002ACA battery is designed as an internal slim battery that fits directly into the ThinkPad T490 chassis. It maintains the original form factor, ensuring secure installation and proper alignment inside the laptop.
Its lightweight and compact design helps preserve the portability of the ThinkPad T490 while still delivering strong performance. The battery is built to handle daily charging cycles while maintaining heat resistance and stable output.
Lenovo ThinkPad T490 20N2002ACA Features and Performance
Reliable Power Delivery
- Provides stable 57Wh energy output
- Supports long working hours
- Ensures consistent laptop performance
- Reduces sudden shutdowns
- Ideal for daily productivity
Efficient Charging System
- Supports optimized charging cycles
- Works with Lenovo power management systems
- Maintains stable voltage output
- Reduces long-term battery wear
- Suitable for frequent use
Safe Lithium Battery Technology
- Built with safety protection features
- Prevents overcharging and overheating
- Ensures stable energy flow
- Improves battery lifespan
- Designed for business-grade use
Lenovo ThinkPad T490 20N2002ACA Compatibility
Supported Laptop Models
- Lenovo ThinkPad T490 (20N2002ACA variants)
- Lenovo ThinkPad T490 series (selected configurations)
- Compatible T490 motherboard battery designs
System Compatibility
- Works with Lenovo BIOS battery detection
- Supports Lenovo Vantage battery management
- Compatible with original Lenovo chargers
- Fully integrates with ThinkPad power system
Lenovo ThinkPad T490 20N2002ACA Ideal Use Cases
Business Professionals
- Supports long office working hours
- Ideal for meetings and presentations
- Reliable for travel and remote work
- Ensures uninterrupted productivity
- Reduces need for constant charging
Students
- Supports full-day academic use
- Ideal for assignments and research
- Reliable for online learning
- Portable for campus use
- Long-lasting performance
Everyday Users
- Suitable for browsing and media use
- Supports multitasking applications
- Ensures stable daily performance
- Reduces frequent charging cycles
- Improves laptop usability
Lenovo ThinkPad T490 20N2002ACA Highlights or Smart Features
High-Capacity Efficiency
- 57Wh battery capacity for extended use
- Balanced power consumption
- Supports long runtime performance
- Optimized for ThinkPad systems
- Efficient energy management
Stable Performance Output
- Consistent voltage delivery
- Smooth system operation
- Reduces power fluctuations
- Supports heavy workloads
- Reliable under continuous use
Compact Internal Design
- Slim internal battery structure
- Maintains laptop portability
- Fits perfectly in T490 chassis
- Lightweight construction
- Space-efficient design
Built-In Safety Protection
- Overcharge protection system
- Temperature control support
- Short-circuit prevention
- Stable discharge regulation
- Enhanced long-term safety
Lenovo ThinkPad T490 20N2002ACA Pros and Cons
| Pros | Cons |
|---|---|
| 57Wh strong capacity | Internal installation required |
| Good battery backup time | Not removable by user |
| Affordable replacement price | Limited to T490 series |
| Stable performance | Quality varies by supplier |
| Compatible with ThinkPad systems | Needs careful installation |
| Improves laptop lifespan | Not original in some cases |
Frequently Asked Questions
Is this battery compatible with all T490 models?
It is compatible with most Lenovo ThinkPad T490 variants, including 20N2002ACA configurations.
How long does the battery last?
It typically lasts between 6 to 10 hours depending on usage.
Is it original Lenovo battery?
It may be OEM or high-quality replacement depending on the supplier.
Can I install it myself?
Yes, but it requires opening the laptop and careful handling.
What is the battery capacity?
It has a 57Wh lithium-ion capacity.
Does it support fast charging?
Yes, it works with Lenovo’s optimized charging system.
What is the price in Kenya?
The Lenovo ThinkPad T490 20N2002ACA battery costs about KSh 6,500 in Kenya.
Conclusion
The Lenovo ThinkPad T490 20N2002ACA 57Wh battery is a reliable replacement option for users who want to restore strong battery performance and extend the life of their laptop. It delivers stable power output, good backup time, and full compatibility with ThinkPad T490 systems.
At a price of KSh 6,500 in Kenya, it is an affordable and practical solution for maintaining productivity and keeping your laptop running efficiently.
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