Lenovo ThinkBook 14 IIL 20SL00JSUS 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 20SL00JSUS 45Wh Original Battery is a premium internal 3-cell lithium-polymer power unit designed for modern business mobility. This battery is fully compatible with the ThinkBook 14-IIL series, providing the stable 11.52V output required for 10th Gen Intel Core processors. At KSh 8,758, this 45Wh unit is the certified original replacement for part numbers L18M3P73, L18L3P73, and 5B10W67177. Notably, it supports Lenovo Rapid Charge technology, allowing the battery to reach up to 80% capacity in just one hour when used with a compatible 65W USB-C or slim-tip adapter.
Lenovo ThinkBook 14-IIL 20SL00JSUS 45Wh Battery: Who Should Buy This?
This internal battery is the essential fit for Lenovo ThinkBook 14-IIL (20SL) and ThinkBook 15-IIL models in Kenya experiencing:
Immediate Power Loss: The laptop shuts down instantly when the USB-C or slim-tip charger is disconnected.
Charging Failures: Lenovo Vantage reports a battery error or the battery health status is reported as poor.
Sudden Percentage Jumps: The battery meter drops drastically during multitasking or video conferencing, indicating worn internal cells.
Physical Warping: A swelling internal battery is causing the bottom cover to bulge or making the trackpad difficult to use.
Lenovo ThinkBook 14-IIL 20SL00JSUS 45Wh Battery Price Table
| Component Name | Model Compatibility | Capacity | Price in Kenya |
| Original 3-Cell Internal | ThinkBook 14-IIL (20SL) | 45Wh / 3910mAh | KSh 8,758 |
Lenovo ThinkBook 14-IIL Battery Key Specifications
| Feature | Specification Details |
| Model Numbers | L18M3P73, L18L3P73, L18C3P73 |
| Compatible Part Nos | 5B10W67177, 5B10W67178, 5B10W67179, SB10W67176 |
| Capacity | 45Wh (approx. 3910mAh) |
| Voltage | 11.52V |
| Battery Type | Lithium-ion Polymer (Li-Po) |
| Cell Count | 3-Cell |
| Compatibility | ThinkBook 14-IIL, ThinkBook 15-IIL, ThinkBook 14-IML |
Lenovo ThinkBook 14-IIL 45Wh Battery Pros and Cons
| Pros | Cons |
| OEM Compatibility | Internal Installation Required |
| Rapid Charge Support | Model Specific |
| High Cycle Life | Fixed Voltage |
| Efficient Power Fit | Professional Price |
Lenovo ThinkBook 14-IIL 20SL00JSUS 45Wh Battery Performance and Safety
High-Density Architecture: Designed to fit the specialized internal bay of the 14-inch ThinkBook series without adding unnecessary weight to the chassis.
Integrated Protection Board: Built-in safety circuits guard against over-voltage, thermal overheating, and internal short circuits.
Genuine System Sync: Fully recognized by Lenovo Vantage for accurate battery health status, charge thresholds, and cycle monitoring.
Rapid Charge Enabled: Optimized to handle higher current input for fast charging cycles without compromising the long-term lifespan of the cells.
Lenovo ThinkBook 14-IIL 20SL00JSUS 45Wh Battery Frequently Asked Questions (FAQs)
Does this battery include the Rapid Charger?
No, the "Rapid Charger" refers to the battery's capability to support fast charging. To utilize this feature, you must use a compatible 65W Lenovo power adapter.
How do I install this internal battery?
Installation requires removing the bottom cover using a Philips 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 14-IIL 20SL00JSUS 45Wh Battery Conclusion
The Lenovo ThinkBook 14-IIL 45Wh Battery at KSh 8,758 is the professional-grade solution to maintain the reliability and fast-charging 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)
- 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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