Lenovo U41-70 Serie 30Wh Original Battery
Sale price ksh 7,318
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Battery technology: Li-ion
Output voltage (volt): 7.4 Volt
Capacity: 4050 mAh / 30 Wh / 2-Cells
Color:Black
Model: L14M2P21
Condition: New,100% Original
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The Lenovo U41-70 Series 30Wh Original Battery is a high-quality internal 3-cell lithium-ion power unit. Designed specifically for the slim and portable U41-70, S41-70, and 500S-14ISH models, this battery provides the stable 11.1V output required for everyday computing. At KSh 7,318, this 30Wh unit is the certified original replacement for part numbers L14M3P21, L14L3P21, and 5B10G78494. It is engineered with premium cells to fit perfectly within the internal chassis, ensuring reliable power for students and professionals who need to restore the mobility of their Lenovo U41 series laptops in Kenya.
Lenovo U41-70 Series 30Wh Battery Price Table
| Component Name | Model Compatibility | Capacity | Price in Kenya |
| Original 3-Cell Internal | U41-70 / S41-70 / 500S-14 | 30Wh / 3910mAh | KSh 7,318 |
Lenovo U41-70 Series 30Wh Battery – Key Specifications
| Feature | Specification Details |
| Model Numbers | L14M3P21, L14L3P21, L14S3P21 |
| Compatible Part Nos | 5B10G78494, 5B10G78493, 5B10G78495, 5B10K10182 |
| Capacity | 30Wh (approx. 3910mAh) |
| Voltage | 11.1V |
| Battery Type | Lithium-ion (Li-ion) |
| Cell Count | 3-Cell |
| Compatibility | U41-70, S41-70, 500S-14ISK, Yoga 500-14 |
Lenovo U41-70 Series 30Wh Battery – Battery Charging Speed and Efficiency
The Lenovo U41-70 Series 30Wh Original Battery is optimized for daily efficiency:
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Steady Energy Discharge: Specifically tuned for the U41 series hardware, providing a consistent power curve for web browsing, office suites, and media consumption.
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Stable Charging Profile: Fully compatible with Lenovo’s 45W and 65W round-tip power adapters, supporting a safe and steady charging profile that helps maintain the long-term health of the chemical cells.
Lenovo U41-70 Series 30Wh Battery – Battery Safety Protection Technologies
Safety is a core priority for the Lenovo U41-70 Series 30Wh Original Battery:
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Multi-Stage Circuit Guard: Protects against over-voltage, over-current, and internal short circuits to safeguard the laptop's motherboard.
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Thermal Monitoring Sensors: Built-in sensors monitor internal cell temperatures, automatically regulating power flow to prevent thermal stress during extended use or high-load tasks.
Lenovo U41-70 Series 30Wh Battery – Battery Connectivity and Compatibility
This internal battery is the essential fit for the U41 and S41 series in Kenya:
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Model Compatibility: Specifically for the Lenovo U41-70, S41-30, S41-70, and 500S-14ISK.
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Part Number Match: Certified replacement for OEM part numbers L14M3P21 and 5B10G78494.
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System Integration: Fully recognized by the BIOS for accurate percentage reporting and energy management settings.
Lenovo U41-70 Series 30Wh Battery – Charger Cable Strength and Durability
The bridge between the internal cells and the system is managed by a high-quality flexible connector:
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Reinforced Internal Ribbon: The main battery-to-motherboard cable is designed to withstand the heat cycles and micro-vibrations within the laptop chassis.
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Precision Header: Features a high-quality plastic header that ensures a vibration-proof, secure connection to the motherboard's power port.
Lenovo U41-70 Series 30Wh Battery – Battery Energy Management and Heat Control
The Lenovo U41-70 Series 30Wh Original Battery utilizes advanced management to maximize longevity:
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Cycle Longevity: Engineered to maintain its capacity over hundreds of charge-discharge cycles, ideal for daily student and home use.
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Low Thermal Resistance: High-quality cells generate minimal heat during use, protecting the laptop’s internal components from thermal stress.
Lenovo U41-70 Series 30Wh Battery – Ideal Use Cases
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Educational Productivity: Perfect for students who need a reliable battery for assignments and online research.
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Home Office Use: Provides the necessary stamina for daily document creation, emails, and web browsing.
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Device Restoration: The perfect choice to replace a dead or non-performing battery and restore your U41’s original mobility.
Lenovo U41-70 Series 30Wh Battery – Pros and Cons Table
| Pros | Cons |
| Genuine Lenovo OEM Quality | Internal installation required |
| Specifically Tuned for U41/S41 Series | Modest 30Wh capacity |
| Reliable 3-Cell Design | Not compatible with U31 or U51 series |
| Safety and Thermal Certified |
Lenovo U41-70 Series 30Wh Battery – FAQs
Q: Will this fit the Lenovo U31-70?
A: No. The U31 series uses a physically different battery design. This unit is strictly for the U41, S41, and 500S-14 variants.
Q: How do I install this battery?
A: Installation requires removing the bottom cover of the laptop using a Philips screwdriver. You must carefully disconnect the internal battery header from the motherboard before unscrewing the old unit.
Q: My laptop says "No battery detected." Will this fix it?
A: Yes, if the motherboard is healthy, this symptom usually indicates a failed internal battery controller. Replacing it with this original unit will resolve the issue.
Lenovo U41-70 Series 30Wh Battery – Conclusion
The Lenovo U41-70 Series 30Wh Original Battery at KSh 7,318 is the definitive professional-grade solution to restore the mobility of your Lenovo laptop. By choosing a genuine OEM replacement, you ensure safety, accurate power reporting, 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”
- 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