Lenovo ThinkPad T490 20N20046US battery
Sale price ksh 7,798
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Battery Type: Li-ion
Voltage: 11.52V / 11.55V
Capacity: 49wh-51wh-55WH
Color: Black
Condition: Brand New
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The Lenovo ThinkPad T490 (20N20046US) 50Wh battery is a professional-grade internal power unit designed for the 14-inch business-standard workstation. Specifically engineered for the 20N2 series, this 3-cell lithium-polymer battery provides the stable 11.52V output required to sustain 8th Gen Intel Core i5 and i7 processors. The Lenovo ThinkPad T490 (20N20046US) 50Wh Battery Price in Kenya is KSh 7,798.
This replacement battery supports Lenovo’s Rapid Charge technology, which can restore 80% of its capacity in approximately 60 minutes when paired with a 65W USB-C adapter. It is the definitive solution for restoring the T490's original mobile endurance, fixing common issues such as "Service Recommended" status, sudden shutdowns, or the laptop failing to hold a charge throughout the workday.
Who Should Buy This Battery?
The Lenovo ThinkPad T490 (20N20046US) battery is an essential purchase for corporate professionals, software developers, and field engineers in Kenya. It is ideal for users who rely on the T490's military-grade durability and need a reliable power reservoir for long meetings, data analysis, and office productivity away from a power outlet.
Lenovo ThinkPad T490 (20N20046US) Battery Price Table
| Product | Model Compatibility | Capacity | Price in Kenya |
| Original 3-Cell Internal | ThinkPad T490 (20N2), T495, P43s | 50Wh / 4345mAh | KSh 7,798 |
Lenovo ThinkPad T490 (20N20046US) Battery Key Specifications Table
| Feature | Specification Details |
| Battery Type | Lithium-Ion Polymer (Li-Po) |
| Voltage Output | 11.52V |
| Capacity | 50Wh (Approx. 4345mAh) |
| Cell Count | 3-Cell Internal |
| Part Numbers | L18M3P73, L18C3P72, L18L3P73, 02DL007, 02DL008, 5B10W13897 |
| Compatibility | ThinkPad T490 (20N2, 20N3), T495, P43s, P14s Gen 1 |
| Connector Type | Internal Multi-pin Cable Connector |
| Charging | Rapid Charge Supported (80% in 1hr) |
| Build Material | High-Density Grade A+ Cells |
| Cycle Life | 300–500 Recharge Cycles |
| Condition | Brand New |
Lenovo ThinkPad T490 (20N20046US) Battery Design and Build Quality
The Lenovo ThinkPad T490 (20N20046US) battery features a precision-engineered internal design tailored to fit the T490’s slim yet rugged 18.9mm chassis. Utilizing high-density 3-cell chemistry, it provides a balanced energy reservoir that ensures high-performance computing without adding bulk. The battery is protected by a heat-shielded casing that helps maintain internal thermal stability during periods of intensive multitasking.
Build quality is focused on business-class reliability. The Lenovo ThinkPad T490 (20N20046US) battery includes a high-quality flexible internal cable and reinforced mounting points, ensuring a secure electrical connection to the motherboard that withstands the rigors of frequent travel and commuting.
Lenovo ThinkPad T490 (20N20046US) Battery Charging Speed and Efficiency
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Rapid Charge Support: Regains 80% charge in about 60 minutes, maximizing uptime for mobile professionals.
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Smart Health Monitoring: Fully recognized by Lenovo BIOS and Vantage for precise monitoring of capacity, temperature, and recharge cycles.
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Stable Power Delivery: Maintains a consistent 11.52V rail to prevent system instability or hardware throttling under peak workloads.
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Low Self-Discharge: High-quality lithium chemistry ensures the battery retains power effectively even when the laptop is in sleep mode.
Lenovo ThinkPad T490 (20N20046US) Battery Safety Protection Technologies
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Cell Balancing Management: The integrated BMS ensures each of the three cells charges and discharges evenly to prevent premature wear.
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Thermal Protection: Internal sensors shut down power intake if cell temperatures exceed safety thresholds during fast charging.
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Anti-Swelling Safety: Structural safety margins prevent cell expansion from damaging the internal keyboard or the glass trackpad.
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Short-Circuit Safety: Includes dedicated hardware-level fuses for immediate electrical cutoff in the event of an electrical fault or surge.
Lenovo ThinkPad T490 (20N20046US) Battery Ideal Use Cases
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Corporate Mobility: Restores the 10–12 hour runtime needed for a full day of meetings and office tasks.
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Developer Productivity: Provides the dependability needed for compiling code and running local environments on the move.
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Fleet Maintenance: The definitive solution for bringing factory performance back to a primary business-standard laptop.
Lenovo ThinkPad T490 (20N20046US) Battery Pros and Cons Table
| Pros | Cons |
| High-density 50Wh capacity restores original endurance | Internal installation requires removing the base cover |
| Supports 80% Rapid Charge in just 60 minutes | Requires a Phillips #0 precision screwdriver |
| Grade A+ cells ensure long-term stability and health | Not compatible with the T490s (slim version) |
Lenovo ThinkPad T490 (20N20046US) Battery Frequently Asked Questions (FAQs)
What is the price of the Lenovo ThinkPad T490 (20N20046US) battery in Kenya?
The current price for this 50Wh high-quality internal replacement battery is KSh 7,798.
How do I safely replace the Lenovo ThinkPad T490 (20N20046US) battery?
Restart and enter BIOS (F1). Navigate to Config > Power and select "Disable Built-in Battery." Once the system powers off, remove the base cover screws and swap the unit.
Will this battery fit the ThinkPad T490s?
No. The T490s is the slimmer version of the T490 and uses a physically wider battery (L18M3P71) that is not interchangeable with this unit.
Does this battery support fast charging?
Yes, it is fully compatible with Lenovo's Rapid Charge technology when used with an original 65W USB-C power adapter.
Lenovo ThinkPad T490 (20N20046US) Battery Conclusion
The Lenovo ThinkPad T490 (20N20046US) 50Wh battery at KSh 7,798 is a professional-grade solution to maintain the reliability and mobility of your primary business laptop. With its support for Rapid Charge, workstation-level safety protocols, and precision fit, it eliminates the frustration of being tethered to a wall outlet. Investing in this quality-grade replacement ensures that your ThinkPad remains a powerful and mobile tool for all your professional achievements.
Cash Payments (Nairobi only)
We accept Cash Payments . This is applicable for Pay on Delivery orders within Nairobi Metropolitan area.
Mpesa Payment.
- Go to Safaricom SIM Tool Kit, select M-PESA menu, select “Lipa na M-PESA“
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Bank Deposit /EFT
You can deposit payment for your order directly into our Stanbic bank account. We check our bank account for new payments every day but depending on your bank it can take 1–2 business days for your payment to appear. To ensure that we can reconcile your payment quickly please make sure you follow the instructions carefully and include a reference with your payment.
Pesalink
You can deposit payment for your order directly into our Stanbic bank account via Pesalink. all products are eligible for payment via Pesalink. To ensure that we can reconcile your payment quickly please make sure you follow the instructions carefully and include a reference with your payment.
Accurate delivery estimates are displayed on the product page and in the Checkout before you confirm your order.
Delivery estimates take into consideration both the delivery address and the types of products being ordered.
The remainder of this article discusses delivery times in more general terms.
Same Day Delivery / For Customers in Nairobi Metropolitan Area
We use Courier for these orders, which allows fast and reliable delivery to destinations across their comprehensive domestic network. Orders placed between 7 Am and 5 Pm will be delivered the same day otherwise they will be delivered the following day. Delivery times vary depending on a product's stock status and the intended delivery address. For very large orders, we may be forced to use Mainfreight as these orders lie outside of what Courier Rider services can handle. If your order is being shipped with Mainfreight, this will be indicated in your fulfilment email along with a tracking number.
Overnight Delivery
Most In stock products are delivered overnight anywhere in Kenya – provided the order is placed before the advertised cut-off time. Our Overnight Delivery cut-off is usually 4:30pm Monday to Friday, however, this is updated daily and the expected shipping date will be shown for you on the product page. Larger products take an additional 1–2 days to be delivered.
Evening Express Delivery
Same Day Delivery is available to Nairobi & its suburbs. Same Day Delivery orders are delivered between 4pm and 7pm in the evening on the same day your order is dispatched.
If you are ordering on a business day and before the cutoff time, the option will be called “Same Day Delivery”. If you are ordering after the cutoff time or on a weekend or public holiday, the option will be called “Evening Express Delivery”. And May incur extra Costs other than the standard shipping fee.
The warranty tendered hereunder, on the electronic product(s) sold under this invoice will be provided exclusively by their respective Authorized Agents/Distributors and are limited to one year from the date of this invoice, except otherwise mentioned as per the warranty conditions as carried along with the products(s) or mentioned on Rondamo Technologies Invoice
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