45wh Lenovo ThinkBook 14s battery
Sale price ksh 8,878
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Battery Type: Li-ion
Voltage: 15.36V
Capacity: 45wh
Color: Black
Condition: Brand New
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The 45Wh Original Battery for the Lenovo ThinkBook 14s series (including IWL and IML generations) is a high-voltage internal power solution designed for ultra-slim professional laptops. This 4-cell lithium-polymer unit is engineered to fit the compact 16.5mm chassis while providing enough sustained current for Intel Core i7 processors and AMD Radeon 540X discrete graphics.
Operating at a high nominal voltage of 15.36V, this battery is the direct factory replacement for the L18M4PF0 and L18C4PF0 part series. The Lenovo ThinkBook 14s 45Wh Battery Price in Kenya is KSh 8,878, restoring the device's signature 11-hour mobile endurance and fast-charging capabilities essential for business travelers.
Lenovo ThinkBook 14s Battery: Who Should Buy This?
This internal battery is the correct choice for ThinkBook 14s-IWL (20RM) and 14s-IML (20RS) users in Kenya facing:
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The laptop losing power immediately when the USB-C or Slim-Tip charger is unplugged.
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Significant "wear level" reported in battery diagnostics, leading to less than 3 hours of runtime.
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System performance throttling or lagging due to unstable voltage delivery from a failing battery.
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Physical swelling that causes the aluminum bottom case to bulge or the trackpad to stiffen.
Lenovo ThinkBook 14s Battery Price Table
| Product Name | Model Compatibility | Capacity | Price in Kenya |
| Lenovo ThinkBook 14s Battery | 14s-IWL / 14s-IML | 45Wh | KSh 8,878 |
Lenovo ThinkBook 14s Battery Key Specifications
| Feature | Specification Details |
| Model Numbers | L18M4PF0, L18C4PF0, L18D4PF0 |
| Compatible Part Nos | 5B10S73499, 5B10W67315, 5B10S73501, 5B10W67399 |
| Capacity | 45Wh (2965mAh) |
| Voltage | 15.36V |
| Battery Type | Lithium-Polymer (Li-Po) |
| Cell Count | 4-Cell |
| Compatibility | ThinkBook 14s-IWL, 14s-IML, 13s-IWL, 13s-IML |
Lenovo ThinkBook 14s Battery Performance and Safety
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Rapid Charge Technology: Fully supports Lenovo's fast-charging protocol, reaching 80% charge in approximately 60 minutes with a 65W adapter.
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Firmware Synced: Communicates natively with the ThinkBook BIOS to provide accurate "Time to Empty" estimates and health monitoring.
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Multi-Layer Protection: Includes integrated safeguards against short-circuiting, cell imbalance, and thermal runaway.
Lenovo ThinkBook 14s Battery Compatibility List
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14s Series: ThinkBook 14s-IWL (20RM), ThinkBook 14s-IML (20RS).
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13s Series: ThinkBook 13s-IWL (20R9), ThinkBook 13s-IML (20RR).
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Other Models: Lenovo V540s-13, S540-14-IWL (specific versions).
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Note: This battery is for the 14s models. It is physically different from the standard "ThinkBook 14" (without the 's') battery, which typically uses an 11.1V or 11.5V 3-cell design.
Lenovo ThinkBook 14s Battery Pros and Cons
| Pros | Cons |
| Restores original 10-11 hour runtime for KSh 8,878 | Lower capacity than the 56Wh Gen 2 ITL battery |
| Official 15.36V design ensures hardware stability | Requires Torx T5 and Phillips #0 for installation |
| Grade A+ cells maintain capacity over 500+ cycles | Internal ribbon connector is extremely thin |
Lenovo ThinkBook 14s Battery Frequently Asked Questions (FAQs)
Can I use this battery in the newer ThinkBook 14s Gen 2?
No. The Gen 2 (ITL/ARE) models typically use a 56Wh battery with a different physical shape and connector. This 45Wh unit is specifically for the first-generation IWL and IML models.
How do I prolong the life of my new ThinkBook battery?
Use the "Battery Conservation Mode" in the Lenovo Vantage app if you primarily use the laptop while plugged into power. This limits the charge to 60%, significantly reducing chemical wear on the cells.
Lenovo ThinkBook 14s Battery Conclusion
The Lenovo ThinkBook 14s 45Wh Battery at KSh 8,878 is the professional-grade replacement required to maintain the portability and high-voltage performance of your ultra-slim workstation.
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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