Lenovo ThinkBook 13s IWL 20R9005UCF battery 45wh Rapid Charger
Sale price ksh 8,758
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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 20R9005UCF 45Wh Original Battery is a premium internal 4-cell lithium-polymer power unit. Designed specifically for the ultra-slim 13.3-inch ThinkBook series, this battery provides the high-voltage 15.36V output required for 8th Gen Intel Core processors. At KSh 8,758, this 45Wh unit is the certified original replacement for part numbers L18M4P71, L18C4P71, and 5B10W13926. It is engineered with high-density cells to fit perfectly within the ThinkBook's sleek aluminum chassis, supporting Rapid Charge technology to provide up to 80% power in just one hour when used with a compatible 65W charger.
Lenovo ThinkBook 13s IWL 20R9005UCF 45Wh Battery: Who Should Buy This?
This internal battery is the essential fit for Lenovo ThinkBook 13s-IWL (20R9) models in Kenya experiencing:
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Immediate Power Loss: The laptop shuts down instantly when the 65W slim-tip or USB-C power adapter is disconnected.
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Charging Failures: Lenovo Vantage reports a "critical battery error" or the status remains stuck at "plugged in, not charging."
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Sudden Percentage Jumps: The battery meter drops drastically during use, indicating worn internal cells.
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Physical Warping: A swelling internal battery is causing the bottom cover to bulge or making the glass trackpad difficult to click.
Lenovo ThinkBook 13s IWL 20R9005UCF 45Wh Battery Price Table
| Component Name | Model Compatibility | Capacity | Price in Kenya |
| Original 4-Cell Internal | ThinkBook 13s-IWL (20R9) | 45Wh / 2964mAh | KSh 8,758 |
Lenovo 45Wh Battery Key Specifications
| Feature | Specification Details |
| Model Numbers | L18M4P71, L18C4P71, L18L4P71 |
| Compatible Part Nos | 5B10W13926, 5B10W13925, 5B10W13927, SB10W13924 |
| Capacity | 45Wh (approx. 2964mAh) |
| Voltage | 15.36V |
| Battery Type | Lithium-ion Polymer (Li-Po) |
| Cell Count | 4-Cell |
| Compatibility | ThinkBook 13s-IWL, 13s-IML, 14s-IWL, 14s-IML |
Lenovo ThinkBook 13s IWL 45Wh Battery Pros and Cons
| Pros | Cons |
| OEM Build Quality | Internal Installation Required |
| Rapid Charge Support | Model Specific Fit |
| Reliable Cycle Life | Fixed Voltage |
| Safety Certified | Professional Price |
Lenovo ThinkBook 13s IWL 20R9005UCF 45Wh Battery Performance and Safety
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High-Density Architecture: Designed to fit the specialized internal bay of the 13.3-inch ThinkBook series without adding unnecessary weight to the chassis.
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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 and system firmware for accurate battery health status and cycle monitoring.
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Optimized Delivery: Engineered specifically for the power requirements of mobile processors found in the 20R9 series.
Lenovo ThinkBook 13s IWL 20R9005UCF 45Wh Battery Frequently Asked Questions (FAQs)
Will this fit the newer ThinkBook 13s Gen 2 or Gen 3?
No. While they share the 13s branding, the battery connector and physical dimensions differ for the newer generations. This 45Wh unit is strictly for the IWL and IML (Gen 1) variants.
How do I install this internal battery?
Installation requires removing the bottom cover using a Philips or Torx screwdriver. You must disconnect the old battery's cable from the motherboard before removing the retaining screws. It is highly recommended to disable the "Built-in Battery" in the BIOS Setup before starting the physical replacement.
Lenovo ThinkBook 13s IWL 20R9005UCF 45Wh Battery Conclusion
The Lenovo ThinkBook 13s 45Wh Battery at KSh 8,758 is the professional-grade solution to maintain the reliability and mobile performance of your essential 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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