45wh Lenovo ThinkBook 14s-IWL 20RM0001US 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 20RM0001US 45Wh Original Battery is a high-performance internal 4-cell lithium-polymer power unit. Designed specifically for the first-generation ThinkBook 14s series, this battery provides the stable 15.36V output required for its 8th Gen Intel Core processors and AMD Radeon dedicated graphics. At KSh 8,878, this 45Wh unit is the certified original replacement for part numbers L18M4P72, L18C4P72, and 5B10W13929. It is engineered with high-density cells to fit perfectly within the sleek aluminum chassis of the 20RM model, supporting Rapid Charge technology to provide reliable power for modern business professionals.
Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Battery Price Table
| Component Name | Model Compatibility | Capacity | Price in Kenya |
| Original 4-Cell Internal | ThinkBook 14s-IWL (20RM) | 45Wh / 2922mAh | KSh 8,878 |
Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Battery – Key Specifications
| Feature | Specification Details |
| Model Numbers | L18M4P72, L18L4P72, L18C4P72 |
| Compatible Part Nos | 5B10W13929, 5B10W13931, 5B10W13930, SB10W13932 |
| Capacity | 45Wh (approx. 2922mAh) |
| Voltage | 15.36V |
| Battery Type | Lithium-ion Polymer (Li-Po) |
| Cell Count | 4-Cell |
| Compatibility | ThinkBook 14s-IWL, ThinkBook 13s-IWL |
Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Battery – Battery Charging Speed and Efficiency
The Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Original Battery is optimized for executive productivity with efficient fast-charging capabilities:
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Express Power Delivery: Fully compatible with Lenovo's 65W USB-C Rapid Charge system, allowing the battery to reach up to 80% charge in approximately one hour.
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Stable Energy Discharge: High-quality cells ensure a consistent discharge curve, providing reliable runtimes for the 14-inch display during presentations and remote work.
Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Battery – Battery Safety Protection Technologies
Safety is built into the core of the Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Original Battery through multiple hardware layers:
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Multi-Stage Circuit Guard: Protects against over-voltage, over-current, and internal short circuits to safeguard the high-performance motherboard.
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Intelligent Thermal Monitoring: Built-in temperature sensors monitor the internal cells, automatically halting power delivery if overheating is detected during intensive multitasking.
Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Battery – Battery Connectivity and Compatibility
This internal battery is the essential fit for the 14-inch professional ThinkBook series in Kenya:
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Model Compatibility: Specifically for ThinkBook 14s-IWL (Type 20RM) and ThinkBook 13s-IWL (Type 20RR).
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Part Number Match: Certified replacement for OEM part numbers L18M4P72, 5B10W13929, and related variants.
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System Integration: Fully recognized by the BIOS and Lenovo Vantage for real-time health monitoring and accurate power percentage reporting.
Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Battery – Charger Cable Strength and Durability
The bridge between the internal cells and the system is maintained by a high-strength flexible connection:
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Reinforced Internal Ribbon: The main battery-to-motherboard connector is designed to withstand the micro-vibrations and thermal expansion inside the slim chassis.
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Secure Locking Header: Features a precision-engineered plastic header that ensures a vibration-proof, secure connection to the motherboard's power port.
Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Battery – Battery Energy Management and Heat Control
The Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Original Battery utilizes advanced management to maximize longevity:
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Cycle Longevity: Engineered to maintain high capacity over hundreds of charge-discharge cycles, reducing the frequency of battery replacements.
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Low Thermal Resistance: High-quality polymer cells generate minimal heat during discharge, protecting the laptop’s internal components from thermal stress.
Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Battery – Ideal Use Cases
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Professional Portability: Ideal for business users who need a lightweight 14-inch laptop that lasts through meetings and travel.
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Creative Productivity: Provides the necessary stamina for light photo editing and content creation away from a power outlet.
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Device Restoration: The perfect choice to replace a dead or non-performing battery and restore your ThinkBook’s original mobility.
Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Battery – Pros and Cons Table
| Pros | Cons |
| Genuine Lenovo OEM Quality | Internal installation required |
| Supports Rapid Charge Technology | Not compatible with ThinkBook 14-IIL/IML |
| High Density for Slim Chassis | Fixed voltage (15.36V) |
| Safety and Thermal Certified |
Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Battery – FAQs
Q: Will this fit the standard ThinkBook 14-IWL (Non-S model)? A: No. The "14s" is a slimmer model with a different internal layout. The standard ThinkBook 14 (Non-S) uses a physically different battery design.
Q: Can I install this battery myself? A: Yes, but it requires removing the bottom cover of the laptop using a small Torx or Philips screwdriver and carefully disconnecting the battery header from the motherboard.
Q: Does this battery support fast charging? A: Yes, it is fully compatible with Lenovo's Rapid Charge technology when used with an original 65W USB-C adapter.
Lenovo ThinkBook 14s-IWL 20RM0001US 45Wh Battery – Conclusion
The Lenovo ThinkBook 14s-IWL 45Wh Original Battery at KSh 8,878 is the definitive professional-grade solution to restore the mobility of your premium business laptop. By choosing a genuine OEM replacement, you ensure safety, maximum runtime, and full compatibility with your system's hardware.
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”
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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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