Internal 24wh Lenovo ThinkPad S440 S540 battery
Sale price ksh 8,038
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- Battery Type: Li-ion
- Voltage:11.4V
- Capacity: 24whr 3cell
- Color: Black
- Condition: Brand New
- Warranty: Full 12 Months Warranty and 30 Days Money Back
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Lenovo ThinkPad S440 S540 Internal Battery (24Wh) Introduction
The Lenovo ThinkPad S440 S540 Internal Battery (24Wh) is the essential power replacement for Lenovo’s slim-profile S-series ultrabooks. This 3-cell Lithium-ion battery provides a 24Wh (Watt-hour) capacity, specifically engineered to fit the internal chassis of the S440 and S540 models. The Lenovo ThinkPad S440 S540 Battery Price in Kenya is KSh 8,038, offering a reliable solution to restore your laptop's mobility and standby time.
Unlike external batteries, this is an Internal Battery, meaning it is housed beneath the laptop's bottom cover. It serves as either the primary power source or as part of a "Power Bridge" system in compatible configurations. Whether your original battery is no longer holding a charge, causing the laptop to shut down unexpectedly, or has begun to swell, this high-quality replacement at KSh 8,038 ensures your ThinkPad remains a dependable tool for on-the-go productivity.
Who Should Buy This Battery?
This replacement is a mechanical necessity for ThinkPad S440 and S540 owners in Nairobi whose laptops are suffering from degraded battery health. It is the correct part for users who need to restore the original slim-and-light portability of their device. If you find yourself constantly tethered to a wall outlet or receiving "battery critically low" warnings shortly after unplugging, this 24Wh internal unit is the required fix.
Lenovo ThinkPad S440 S540 Internal Battery Price Table
| Component Name | Model Compatibility | Capacity | Price in Kenya |
| Internal Laptop Battery | ThinkPad S440 & S540 | 24Wh / 2100mAh | KSh 8,038 |
Lenovo ThinkPad S440 S540 Internal Battery Key Specifications Table
| Feature | Specification Details |
| Battery Type | Lithium-ion (Li-ion) |
| Cell Count | 3-Cell |
| Voltage | 11.1V / 11.4V (Compatible) |
| Capacity | 24Wh (approx. 2100mAh) |
| Part Numbers | 45N1138, 45N1139, 45N1140, 45N1141 |
| Color | Black |
| Condition | New / Replacement |
| Safety Features | Over-charge & Over-discharge Protection |
Lenovo ThinkPad S440 S540 Internal Battery Features and Performance
The Lenovo S440/S540 battery is designed for high energy density and stable power delivery. The Lithium-ion technology ensures there is no "memory effect," meaning you can charge and discharge the battery at any level without reducing its long-term capacity. With its 24Wh capacity, it is optimized for the power-efficient processors found in the S-series, providing several hours of runtime for standard office tasks and web browsing.
This battery includes an integrated Smart Chip that communicates directly with your ThinkPad's BIOS. This ensures accurate reporting of the remaining charge percentage and prevents safety issues such as overheating or short-circuiting. At KSh 8,038, this battery restores the seamless power management that ThinkPads are known for, allowing the laptop to transition between AC power and battery power without interruption.
Lenovo ThinkPad S440 S540 Internal Battery Installation and Compatibility
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Compatibility Check: Strictly designed for the Lenovo ThinkPad S440 and S540 series. It is not interchangeable with standard T-series or X-series batteries.
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Internal Mounting: This battery is secured with screws inside the chassis. You will need to remove the bottom base cover to access the installation site.
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Connector Alignment: Ensure the multi-pin power connector is firmly seated in the motherboard socket before closing the laptop.
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Safety First: Always shut down the laptop and disconnect the charger before opening the device. Avoid using metal tools near the battery cells.
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Initial Charge: For optimal lifespan, it is recommended to charge the new battery to 100% and then discharge it to approximately 10% for the first cycle.
Lenovo ThinkPad S440 S540 Internal Battery Pros and Cons Table
| Pros | Cons |
| Restores original ultrabook portability | Lower capacity (24Wh) than external options |
| Integrated safety protection circuits | Requires opening the laptop for installation |
| Perfect factory-standard fit and finish | Does not increase battery life beyond original specs |
| High-quality Li-ion cells for long cycle life | Fragile internal connector pins |
| Stable power delivery for hardware safety | Higher price point than generic external packs |
Lenovo ThinkPad S440 S540 Internal Battery Frequently Asked Questions (FAQs)
What is the price of a Lenovo ThinkPad S440 battery in Kenya?
The current price for a genuine-quality Lenovo ThinkPad S440 S540 internal battery (24Wh) in Kenya is KSh 8,038.
How do I know if my internal battery needs replacing?
Signs include the laptop only working when plugged in, a "Service Battery" warning in Windows, the battery percentage jumping erratically, or the bottom of the laptop casing bulging (a sign of a swelling battery).
Can I install this battery myself?
Yes, if you are comfortable removing the bottom cover screws of your laptop. However, if you are unsure, professional installation is recommended to avoid damaging the internal motherboard connectors.
Does this battery work for the S430 or S530?
No. This battery is specific to the S440 and S540 models. Older or newer S-series generations typically use different physical shapes and connectors.
Is it safe to leave the laptop plugged in all the time?
While modern ThinkPads have protection circuits, it is healthy to discharge the battery occasionally to keep the Lithium-ion cells active.
Lenovo ThinkPad S440 S540 Internal Battery Conclusion
The Lenovo ThinkPad S440 S540 Internal Battery (24Wh) is a crucial component for anyone looking to reclaim the mobile freedom of their ThinkPad ultrabook. For KSh 8,038, you are investing in a safe, reliable, and high-performance power source that matches the original specifications of your device. By replacing your worn-out internal battery, you ensure that your S440 or S540 remains the portable, high-efficiency machine it was designed to be.
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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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Pesalink
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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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