Lenovo ThinkBook 13s IML 20RR003RUS 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 IML (20RR003RUS) 45Wh Original Battery is a premium 4-cell internal lithium-polymer power unit engineered specifically for the 13-inch ThinkBook series. This battery is designed to support the efficiency demands of the IML (Intel Comet Lake) platform, ensuring the device remains ultra-portable while maintaining professional-grade runtime. At KSh 8,758, this unit is the certified original replacement for FRU part numbers L18M4PF0, L18D4PF0, L18C4PF0, 5B10W67315, 5B10S73499, and 5B10S73500. It effectively restores factory-rated endurance, resolving issues such as rapid discharge or "Service Required" alerts.
Lenovo ThinkBook 13s IML (20RR003RUS) 45Wh Battery Price Table
| Component Name | Model Compatibility | Capacity | Price in Kenya |
| Original 4-Cell Internal | ThinkBook 13s IML (20RR) | 45Wh / 2965mAh | KSh 8,758 |
Lenovo ThinkBook 13s IML (20RR003RUS) 45Wh Battery Key Specifications
| Feature | Specification Details |
| Model Numbers | L18M4PF0, L18D4PF0, L18C4PF0 |
| Compatible Part Nos | 5B10W67315, 5B10S73499, 5B10S73500 |
| Capacity | 45Wh (approx. 2965mAh) |
| Voltage | 15.36V |
| Battery Type | Lithium-ion Polymer (Li-Po) |
| Cell Count | 4-Cell Internal |
| Compatibility | ThinkBook 13s-IML, 13s-IWL, 14s-IML, 14s-IWL Series |
Lenovo ThinkBook 13s IML (20RR003RUS) 45Wh Battery Performance & Charging
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Rapid Charge Support: Fully supports Lenovo’s Rapid Charge technology, allowing the device to recover approximately 80% charge in about 60 minutes when used with a compatible 65W USB-C AC adapter.
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Stable Power Delivery: Engineered to maintain consistent voltage regulation, minimizing energy loss during high-load business applications.
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Intelligent Discharge: Specifically tuned to provide a consistent power curve for Comet Lake-based systems.
Lenovo ThinkBook 13s IML (20RR003RUS) 45Wh Battery Safety Features
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Multi-Stage Circuit Guard: Features integrated protection against over-voltage, over-charging, and internal short circuits.
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Thermal Monitoring: Built-in NTC thermistors monitor cell temperature in real-time to prevent thermal stress during charging cycles.
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Firmware Recognition: Fully recognized by Lenovo Vantage for real-time health reporting, cycle counting, and battery maintenance settings.
Lenovo ThinkBook 13s IML (20RR003RUS) 45Wh Battery Compatibility
| Compatible Devices | Notes |
| ThinkBook 13s IML (20RR) | Main supported model |
| ThinkBook 13s IWL / 14s IML | Same battery family |
Lenovo ThinkBook 13s IML (20RR003RUS) 45Wh Battery Ideal Use Cases
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Business Professionals: Restores the battery runtime necessary for office productivity, meetings, and light travel.
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System Maintenance: The recommended solution for replacing a degraded battery that no longer holds a charge.
Lenovo ThinkBook 13s IML (20RR003RUS) 45Wh Battery Pros and Cons Table
| Pros | Cons |
| Genuine Lenovo OEM Quality | Internal installation requires base removal |
| Supports 80% Rapid Charge | Not compatible with newer Gen 2+ models |
| Safety and Thermal Certified | Requires Phillips #0 precision tools |
Lenovo ThinkBook 13s IML (20RR003RUS) 45Wh Battery FAQs
Q: Is this battery 45Wh?
A: Yes, the ThinkBook 13s IML uses this standard 45Wh integrated battery.
Q: Does it support fast charging?
A: Yes, it supports Lenovo Rapid Charge (up to 80% in ~60 minutes) with a 65W adapter.
Q: How do I replace it?
A: You must remove the base cover screws. For safety, always access the BIOS (F1 at startup) and select Config > Power > Disable Built-in Battery before opening the chassis.
Lenovo ThinkBook 13s IML (20RR003RUS) 45Wh Battery Conclusion
The Lenovo ThinkBook 13s IML (20RR003RUS) 45Wh Original Battery at KSh 8,758 is the definitive solution to reclaim the portability and performance of your business laptop with fast-charging support.
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)
- Enter your M-PESA PIN and press “OK”
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