Lenovo ThinkBook 14s-IWL 20RM0003US 45wh 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 14s-IWL 20RM0003US 45Wh Original Battery is a professional-grade internal 3-cell lithium-polymer power unit designed for the first generation of the 14-inch ThinkBook S series. Operating at a nominal 15.36V, this battery is engineered to sustain the performance of Intel Core i5 and i7 processors while maintaining the laptop's ultra-slim aluminum profile. At KSh 8,878, this unit is the certified original replacement for FRU part numbers L18M3PF1, L18L3PF1, L18C3PF1, and 5B10W67177. It restores the original 10-hour mobile runtime, ensuring that business professionals in Kenya can stay productive during meetings and travel without constant access to a wall outlet.
Lenovo ThinkBook 14s-IWL 20RM0003US 45Wh Battery Price Table
| Component Name | Model Compatibility | Capacity | Price in Kenya |
| Original 3-Cell Internal | ThinkBook 14s-IWL (20RM) | 45Wh / 2964mAh | KSh 8,878 |
Lenovo ThinkBook 14s-IWL 20RM0003US 45Wh Battery Key Specifications
| Feature | Specification Details |
| Model Numbers | L18M3PF1 / L18L3PF1 / L18C3PF1 |
| Compatible Part Nos | 5B10W67177, 5B10T04975, 5B10T04976, 5B10T04977 |
| Capacity | 45Wh (approx. 2964mAh) |
| Voltage | 15.36V |
| Battery Type | Lithium-ion Polymer (Li-Po) |
| Cell Count | 3-Cell |
| Compatibility | ThinkBook 14s-IWL (20RM), ThinkBook 13s-IWL (20RR) |
Lenovo ThinkBook 14s-IWL 20RM0003US 45Wh Battery Charging Speed and Efficiency
The ThinkBook 14s-IWL 45Wh battery is optimized for business-class energy management:
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Rapid Charge Support: Fully compatible with Lenovo’s 65W USB-C adapters, allowing the battery to reach 80% charge in approximately 60 minutes.
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Efficient High-Voltage Output: The 15.36V architecture ensures stable energy delivery to the 14-inch FHD display and internal storage during heavy multitasking.
Lenovo ThinkBook 14s-IWL 20RM0003US 45Wh Battery Safety Protection Technologies
Safety and system integrity are paramount for corporate hardware:
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Advanced Circuit Protection: Integrated safety chips monitor energy levels to prevent over-voltage, thermal spikes, and short-circuiting.
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Firmware Synchronization: Fully recognized by the BIOS and Lenovo Vantage, enabling accurate "Battery Gauge" reporting and health monitoring.
Lenovo ThinkBook 14s-IWL 20RM0003US 45Wh Battery Connectivity and Compatibility
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Precision Chassis Fit: Specifically molded to fit the unibody aluminum chassis of the 14s-IWL, ensuring zero movement or pressure on the internal components.
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Verified Handshake: Guaranteed to be recognized by the system to avoid software-level throttling or "unauthorized battery" warnings at startup.
Lenovo ThinkBook 14s-IWL 20RM0003US 45Wh Battery Charger Cable Strength and Durability
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Reinforced Internal Header: Features a high-quality connector designed for a vibration-proof electrical link to the motherboard.
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Shielded Ribbon Design: The internal battery ribbon is high-flex and shielded to prevent interference with the laptop’s Wi-Fi and Bluetooth antennas.
Lenovo ThinkBook 14s-IWL 20RM0003US 45Wh Battery Ideal Use Cases
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Corporate Productivity: Restores the mobility needed for a full day of meetings and office work in Nairobi or other regional hubs.
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Professional Travel: Provides the dependable 45Wh capacity required for long flights and commutes.
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Hardware Restoration: The essential choice for replacing a battery that has reached its 300–500 charge cycle limit or has begun to swell.
Lenovo ThinkBook 14s-IWL 20RM0003US 45Wh Battery Pros and Cons Table
| Pros | Cons |
| Genuine OEM Spec restoration for KSh 8,878 | Internal installation requires base removal |
| Supports 80% Rapid Charge in 60 mins | Requires Phillips #00 precision tools |
| Exact fit for the 14s-IWL unibody design | 45Wh is the standard (not high-capacity) size |
Lenovo ThinkBook 14s-IWL 20RM0003US 45Wh Battery FAQs
Q: Will this fit the 13-inch ThinkBook 13s?
A: Yes. The ThinkBook 14s-IWL (20RM) and the 13s-IWL (20RR) share the same L18M3PF1 battery part.
Q: Can I replace this battery myself?
A: Yes, if you have the correct precision tools. For safety, always go into the BIOS (F1 at startup) and select Config > Power > Disable Built-in Battery before physically opening the chassis.
Q: My laptop shut down suddenly at 15%. Will this fix it?
A: Yes. Sudden drops in percentage are a primary symptom of a failing lithium-polymer cell. Replacing it with this original unit for KSh 8,878 will resolve these calibration issues.
Lenovo ThinkBook 14s-IWL 20RM0003US 45Wh Battery Conclusion
The Lenovo ThinkBook 14s-IWL (20RM0003US) 45Wh Battery at KSh 8,878 is the professional solution to restore the reliability and mobile endurance of your laptop. By choosing a genuine-spec replacement, you ensure device safety and restore the consistent power delivery required for your school or work tasks.
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
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