Lenovo ThinkBook 15 IIL 20SM battery
Sale price ksh 9,838
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Battery Type: Li-ion
Voltage: 11.52V
Capacity: 57WH
Color: Black
Condition: Brand New
Warranty: Full 12 Months Warranty and 30 Days Money Back
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The Lenovo ThinkBook 15-IIL (Type 20SM) Original Battery is a high-performance internal lithium-polymer power cell designed for the professional-grade ThinkBook 15 series. This battery is engineered to meet the power demands of Intel Core i5 and i7 10th Gen processors, ensuring the device retains its productivity-focused mobility. The Lenovo ThinkBook 15-IIL 20SM Battery Price in Kenya is KSh 9,838.
This 3-cell battery typically provides a capacity of 45Wh (approx. 4140mAh) at a nominal voltage of 11.52V / 11.55V. It is the direct replacement for a wide range of Lenovo FRUs, including L19C3PF1, L19L3PF1, L19M3PF1, and 5B10X55573. At KSh 9,838, this original unit supports ThinkBook-specific features such as Rapid Charge and advanced power management via Lenovo Vantage.
Who Should Buy This Battery?
This battery is essential for ThinkBook 15-IIL (20SM) owners in Kenya who use their machines for heavy multitasking, office applications, or remote work. If your ThinkBook is currently tethered to a charger or experiencing 0% "plugged in, not charging" errors, this KSh 9,838 replacement restores the professional-standard 7–9 hour battery life (usage dependent), making the laptop fully mobile again.
Lenovo ThinkBook 15-IIL 20SM Battery Price Table
| Component Name | Model Compatibility | Capacity | Price in Kenya |
| Professional 3-Cell Internal | ThinkBook 15-IIL (20SM) | 45Wh / 4140mAh | KSh 9,838 |
Lenovo ThinkBook 15-IIL 20SM Battery Key Specifications Table
| Feature | Specification Details |
| FRU / Part Numbers | 5B10X55573, 5B10X55571, 5B10W67257, 5B10V25250 |
| Compatible Part Nos | L19C3PF1, L19L3PF1, L19M3PF1, L19D3PF1 |
| Capacity | 45Wh (4140mAh) |
| Voltage | 11.52V / 11.55V (Interchangeable) |
| Battery Type | Li-Polymer |
| Cell Count | 3-Cell |
| Cycle Life | 500+ Recharge Cycles |
| Compatibility | ThinkBook 14-IIL, 15-IIL, 14-IML, 15-IML |
Lenovo ThinkBook 15-IIL 20SM Battery Performance and Safety
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Rapid Charge Technology: Fully supports Lenovo’s 65W USB-C or Slim-Tip fast charging, reaching 80% capacity in approximately one hour.
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Firmware Verification: Guaranteed to be recognized by the Lenovo BIOS, avoiding the "Non-Genuine Battery" warnings that common generic cells often trigger.
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Overheat Protection: Integrated thermistors monitor the battery temperature in real-time, preventing thermal runaway during intense processing tasks.
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Vantage Calibration: Works perfectly with Lenovo Vantage's "Battery Gauge Reset" tool to ensure the percentage remaining indicator stays accurate.
Lenovo ThinkBook 15-IIL 20SM Compatibility List
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ThinkBook Series: ThinkBook 15-IIL (20SM), ThinkBook 15-IML (20RW).
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14-Inch Variants: ThinkBook 14-IIL (20SL), ThinkBook 14-IML (20RV).
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Note: This battery is designed for the Generation 1 (G1) ThinkBook 15 models. While visually similar to the 57Wh high-capacity upgrade or the Generation 2 (G2) batteries, the KSh 9,838 unit is the standard-fit 45Wh model for the 20SM chassis.
Lenovo ThinkBook 15-IIL 20SM Battery Pros and Cons Table
| Pros | Cons |
| Official Rapid Charge support | Higher cost than aftermarket budget alternatives |
| Seamless Lenovo Vantage software integration | Requires removal of T5 Torx or Phillips screws to install |
| Slim-profile polymer design reduces laptop weight | 45Wh is the standard (not the extended 57Wh) capacity |
Lenovo ThinkBook 15-IIL 20SM Battery Frequently Asked Questions (FAQs)
Can I use the 57Wh battery instead of this 45Wh one?
In many 20SM configurations, the 57Wh battery (L19C3PF7) can fit only if your laptop does not have a 2.5-inch SATA hard drive installed. If you have a SATA drive, you must use this 45Wh (L19C3PF1) model as it provides the necessary clearance.
Is it safe to install this myself?
Yes, but you must enter the BIOS settings first and select "Disable Built-in Battery" before opening the case. This shuts down all internal power to prevent accidental sparks or motherboard damage.
Why does my battery report 4000mAh when the label says 4140mAh?
Small variances in reported design capacity vs. actual capacity are normal in lithium-polymer cells. A reported capacity within 5% of the label rating is considered a healthy, new battery.
Lenovo ThinkBook 15-IIL 20SM Battery Conclusion
The Lenovo ThinkBook 15-IIL (20SM) 45Wh Battery at KSh 9,838 is a critical investment for maintaining the professional reliability of your device. By ensuring the battery matches the original Lenovo FRU specifications, you protect the longevity of your motherboard and enjoy consistent performance.
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)
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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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