Product Overview
The L16C4PB2 (interchangeable with L16M4PB2 and L16L4PB2) is a 100% brand new 3646mAh / 55Wh Li-ion replacement battery at 15.2V for Lenovo IdeaPad 720S-14IKB, V720-14 and K42-80 series laptops. It replaces Lenovo part numbers 5B10M55951, 5B10M55950 and 5B10M55952. Premium Grade-A cells restore dependable notebook runtime. Ships 100% brand new in Black with a 1-year warranty.
Specifications
| Attribute | Details |
|---|---|
| Standard Model | L16C4PB2 |
| Capacity | 3646mAh / 55Wh |
| Voltage | 15.2V |
| Battery Type | Li-ion |
| Cell | Made in China, high quality guarantee |
| Color | Black |
| Condition | Replacement Battery (100% Brand New, 1-year warranty!) |
Replace Part Numbers
- L16C4PB2
- L16M4PB2
- L16L4PB2
- 5B10M55951
- 5B10M55950
- 5B10M55952
Compatible Models
For Lenovo Series
- For Lenovo IdeaPad 720S-14IKB Series
- For Lenovo V720-14 Series
- For Lenovo K42-80
FAQ
Are L16C4PB2, L16M4PB2 and L16L4PB2 the same battery?
Yes. L16C4PB2, L16M4PB2 and L16L4PB2 are interchangeable part numbers at 15.2V 55Wh and are all compatible with the IdeaPad 720S-14IKB, V720-14 and K42-80 series.
Will this battery fit my IdeaPad 720S-14IKB?
Yes. The 720S-14IKB is a listed compatible model. Please confirm your original battery reads L16C4PB2, L16M4PB2, L16L4PB2 or 5B10M5595x before ordering.
Note:
This is not a complete list or inclusion of all compatible laptop models. You can open the back of your laptop to check the original battery model. If you have any compatibility questions, please contact us online.The casing is made of durable materials, the mainboard adopts advanced technology, and the battery core is produced with high-quality raw materials to ensure that it will not be damaged after long-term use.
Our products are equipped with multiple protection technologies such as overvoltage, overcurrent, and overcharge to effectively protect the safety of batteries and equipment.
China warehouse delivery method
Overseas Warehouse Shipping Times & Costs
Payment Methods
Paypal

Payments by PayPal, no PayPal account required. Paypal is safe and free for buyers.
PayPal account: Payment@batterymall.com
Account Name: ShenZhen KingSener Science and Technology Co., Ltd
Credit or debit card
VISA, MasterCard, the United States n Express,Maestro & Laser Card, APPLE Pay,etc.
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WeChat Pay
Currently only supports QR code payment. Please contact WeChat customer service and go to WeChat App to scan the QR code to complete the payment.
Google Pay
Pay with Google Pay, which is more convenient and faster.
Apple Pay
If you use an Apple device, you can use Apple Pay to pay, which is more convenient and faster.
Bank Transfer
Q&A
Quick FAQ:Laptop Battery Care & Troubleshooting
- What Should I Know Before Buying a Laptop Battery Replacement?A: Before buying a laptop battery replacement, confirm your laptop’s exact model number and the part number printed on the original battery. Check the battery voltage, connector, physical dimensions, and compatibility list. Do not choose a battery based on appearance alone, because similar laptop models may use different batteries. Review the seller’s warranty, return policy, and product specifications before ordering.
- How Do I Find a Compatible Laptop Battery for My Device?A: To find a compatible laptop battery, identify your laptop’s full model number and the part number on the original battery. Compare these details with the replacement battery’s compatibility list and specifications, including voltage, connector type, and dimensions. If you are unsure, contact customer support with your laptop model and original battery part number before placing an order.
- Can I leave my laptop plugged in 24/7?Yes, the built-in TI chip prevents overcharging. Tip: To prevent long-term cell swelling, unplug and drain the battery to 40% twice a month.
- Why Is My Laptop Battery Not Charging?A: A laptop battery may not charge because of a faulty AC adapter, damaged charging port, loose connection, temperature protection, battery-health settings, or a worn-out battery. Confirm that you are using a compatible charger and inspect the cable and port for visible damage. Restart the laptop and review the manufacturer’s battery or charging settings. If the battery becomes unusually hot, swollen, or damaged, stop using it and seek professional assistance.
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Are BatteryMall Laptop Batteries Reliable?BatteryMall laptop batteries are designed with safety and reliability in mind. All batteries feature built-in IC protection against short-circuits, over-voltage, and overheating, helping protect the battery during normal use. They are also CE, FCC, and RoHS certified. For the best experience, choose a compatible laptop battery that matches your exact laptop model and original battery part number, and follow the installation and care instructions. BatteryMall also provides a 1-year warranty on KingSener batteries purchased from BatteryMall; see the Product Warranty page for details.