45wh Lenovo ThinkBook 13s-IWL 20R9005NUS 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 Lenovo ThinkBook 13s-IWL (20R9005NUS) 45Wh Original Battery is a high-performance internal 4-cell lithium-polymer power unit. Designed specifically for the slim 13.3-inch professional series, this battery provides the stable 15.36V output required to power 8th Gen Intel Core processors and the high-brightness FHD display found in this modern business machine.
At KSh 8,878, this 45Wh unit is the certified original replacement for part numbers L18M4P71, L18L4P71, 5B10W67175, and 5B10W67215. It is engineered with high-density cells to fit within the ThinkBook’s precision-milled aluminum chassis while offering approximately 10–11 hours of runtime for all-day mobile productivity.
Lenovo ThinkBook 13s-IWL Battery: Who Should Buy This?
This internal battery is the essential fit for Lenovo ThinkBook 13s-IWL (20R9) and ThinkBook 14s-IWL (20RM) users in Kenya experiencing:
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Immediate Power Loss: The laptop shuts down instantly when the 65W USB-C charger is disconnected.
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Charging Failures: Lenovo Vantage warns of a "critical battery error" or reports the battery is "connected but not charging."
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Sudden Percentage Jumps: The battery meter drops drastically from 80% to 10% in minutes, indicating worn internal cells.
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Physical Warping: A swelling internal battery is causing the bottom cover to bulge or the trackpad area to feel stiff.
Lenovo ThinkBook 13s-IWL (20R9005NUS) 45Wh Battery Price Table
| Component Name | Model Compatibility | Capacity | Price in Kenya |
| Original 4-Cell Internal | ThinkBook 13s-IWL (20R9) | 45Wh / 3950mAh | KSh 8,878 |
Lenovo ThinkBook 13s-IWL (20R9) Battery Key Specifications
| Feature | Specification Details |
| Model Numbers | L18M4P71, L18L4P71, L18C4P71 |
| Compatible Part Nos | 5B10W67175, 5B10W67215, 5B10W67189, SB10W67201 |
| Capacity | 45Wh (approx. 3950mAh) |
| Voltage | 15.36V |
| Battery Type | Lithium-ion Polymer (Li-Po) |
| Cell Count | 4-Cell |
| Compatibility | ThinkBook 13s-IWL, ThinkBook 14s-IWL |
Lenovo ThinkBook 13s-IWL 45Wh Battery Pros and Cons
| Pros | Cons |
| OEM Compatibility | Internal Installation |
| Rapid Charge Ready | Single Capacity Option |
| Safety Certified | Fixed Voltage |
| Ultra-Slim Profile | Professional Price |
Lenovo ThinkBook 13s-IWL Battery Performance and Safety
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High-Density Architecture: Designed to fit the modern, ultra-slim internal bay of the ThinkBook series without adding unnecessary weight.
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Integrated Protection Board: Built-in safety circuits guard against over-voltage, thermal overheating, and internal short circuits.
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Genuine System Sync: Fully recognized by Lenovo Vantage for accurate battery health status, charge thresholds, and cycle counting.
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Rapid Charge Support: Supports fast charging (80% in 1 hour) when used with the original 65W Lenovo USB-C adapter.
Lenovo ThinkBook 13s-IWL Battery Frequently Asked Questions (FAQs)
Will this fit the newer ThinkBook 13s Gen 2 or Gen 3?
No. The Gen 2 and Gen 3 models use physically different battery designs (typically 56Wh). This L18M4P71 battery is strictly for the first-generation ThinkBook 13s-IWL models.
How do I extend the life of my professional battery?
Use Lenovo Vantage to enable "Conservation Mode" if you mostly use the laptop while plugged in. This keeps the battery at 55–60% charge, which significantly reduces cell degradation over time.
Lenovo ThinkBook 13s-IWL Battery Conclusion
The Lenovo ThinkBook 13s-IWL 45Wh Battery at KSh 8,878 is the professional-grade solution to maintain the reliability and mobile performance of your slim business laptop.
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“
- Select “Pay Bill“
- Select “Enter Business no.“, Enter Rondamo technologies Lipa na M-PESA PayBill Number 964586 and press “OK”
- Account no. ( Indicate Order No. & Your Name)
- “Enter Amount : ( Total shown on Invoice)
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This is applicable for all orders, both in Nairobi & upcountry besides large orders over Ksh 250,000/-
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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