Lenovo ThinkBook 14 IIL 20SL 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 14 IIL (20SL) power kit features a high-density 45Wh internal battery paired with a 65W USB-C Rapid Charger. This combination is engineered to support the 10th Gen Intel Core processors and the thin-and-light chassis of the ThinkBook series, ensuring both professional-grade endurance and fast recovery times.
At a combined price of KSh 8,758, this bundle provides an original-spec 3-cell lithium-polymer battery (11.52V) and a high-wattage USB-C adapter. The battery is the certified replacement for FRU part numbers L18M3P74, L18L3P74, and 5B10W13933, while the charger supports Lenovo's "Rapid Charge" technology to hit 80% capacity in just one hour.
Lenovo ThinkBook 14 IIL Power Kit: Who Should Buy This?
This battery and charger set is essential for ThinkBook 14 IIL (20SL) users in Kenya facing:
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Charger Failure: Your original adapter has frayed cables or no longer provides power to the USB-C port.
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Slow Charging: You are using a low-wattage (45W) or generic phone charger that takes several hours to fill the battery.
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Uptime Issues: The battery no longer lasts through a standard workday, often failing after only 2–3 hours.
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Battery Swelling: The internal battery is expanding, causing the bottom case to bulge or the trackpad to become stiff.
Lenovo ThinkBook 14 IIL (20SL) Price Summary
| Component Name | Compatibility | Specification | Price in Kenya |
| Original 3-Cell Battery | ThinkBook 14 IIL (20SL) | 45Wh / 3940mAh | Included |
| 65W USB-C Rapid Charger | ThinkBook 14 IIL (20SL) | 20V / 3.25A | Included |
| Total Bundle Price | KSh 8,758 |
Lenovo ThinkBook 14 IIL (20SL) Key Specifications
| Feature | Specification Details |
| Battery Model Nos | L18M3P74, L18L3P74, L18C3P74 |
| Compatible Part Nos | 5B10W13933, 5B10W13935, SB10W13930 |
| Battery Capacity | 45Wh (Approx. 3940mAh) |
| Battery Voltage | 11.52V |
| Charger Wattage | 65W (Rapid Charge Supported) |
| Charger Connector | USB Type-C |
| Compatibility | ThinkBook 14 IIL (20SL), ThinkBook 15 IIL, V14/V15-IIL |
Performance and Safety Features
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Rapid Charge Efficiency: When paired together, the 65W adapter optimizes the charging curve of the 45Wh battery for the fastest possible safe replenishment.
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USB-PD Compatibility: The charger follows Universal Power Delivery standards, meaning it can also safely charge your USB-C smartphones or tablets.
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BMS Integrated Safety: The battery includes a Battery Management System to prevent over-voltage and thermal runaway, while the charger features surge protection.
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Genuine Firmware Support: The battery is recognized by Lenovo Vantage for accurate health monitoring and warranty validation.
Lenovo ThinkBook 14 IIL Power Kit Pros and Cons
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Pros: Complete power restoration for KSh 8,758; enables 80% charge in 60 minutes; original 11.52V architecture for system stability.
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Cons: Internal battery replacement requires prying the bottom cover; USB-C ports on the motherboard can be delicate during charger insertion.
Frequently Asked Questions (FAQs)
Can I use this 65W charger with a 45Wh battery?
Yes. Even if your laptop originally came with a 45W charger, upgrading to this 65W unit will enable "Rapid Charge" without damaging the battery.
How do I install the internal battery?
Turn off the laptop, remove the bottom screws, and carefully unplug the battery ribbon cable from the motherboard. We recommend disabling the "Built-in Battery" in the BIOS under Config > Power before starting.
Lenovo ThinkBook 14 IIL Power Kit Conclusion
The Lenovo ThinkBook 14 IIL 45Wh Battery & 65W Rapid Charger at KSh 8,758 is a comprehensive solution to restore your ultrabook's mobility and fast-charging capabilities to factory standards.
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