Product Overview
The C21N1347 is a high-performance OEM-grade replacement battery delivering 37Wh / 4840mAh at 7.6V for ASUS X555, X554L, A555, F555, K555, R556, FL5500L, FL5600L, VM510, VM590 and W519 Series laptops. Precision-engineered with high-quality Li-ion cells and multi-protection BMS circuitry, it restores your ASUS notebook’s original runtime and rock-stable power output — the perfect 1:1 factory-fit upgrade for a worn original pack. Ships 100% brand new with a 1-year warranty and fast dispatch.
Specifications
| Attribute | Details |
|---|---|
| Standard Model | C21N1347 |
| Capacity | 37Wh / 4840mAh |
| Voltage | 7.6V |
| Battery Type | Li-ion (2-Cell) |
| Color | Black |
| Condition | Replacement Battery (100% Brand New) |
| Warranty | 1-Year Warranty |
Replace Part Numbers
- C21N1347
- 2ICP4/63/134
Compatible Models
- For ASUS X555 Series
- For ASUS X555L Series
- For ASUS X555LA Series
- For ASUS X555LB Series
- For ASUS X555LD Series
- For ASUS X555LF Series
- For ASUS X555LI Series
- For ASUS X555LJ Series
- For ASUS X555LN Series
- For ASUS X555LP Series
- For ASUS X555MA Series
- For ASUS X555SJ Series
- For ASUS X555UA Series
- For ASUS X555UB Series
- For ASUS X555UF Series
- For ASUS X555UJ Series
- For ASUS X555UQ Series
- For ASUS X554L Series
- For ASUS A555 Series
- For ASUS F555 Series
- For ASUS K555 Series
- For ASUS R556 Series
- For ASUS FL5500L Series
- For ASUS FL5600L Series
- For ASUS VM510 Series
- For ASUS VM590 Series
- For ASUS W519 Series
FAQ
Which ASUS laptops does the C21N1347 battery fit?
The C21N1347 replacement battery fits ASUS X555, X555L, X555LA, X555LB, X555LD, X555LF, X555LI, X555LJ, X555LN, X555LP, X555MA, X555SJ, X555UA, X555UB, X555UF, X555UJ, X555UQ, X554L, A555, F555, K555, R556, FL5500L, FL5600L, VM510, VM590 and W519 Series laptops. Before ordering, verify the C21N1347 (or 2ICP4/63/134) code printed on the label of your original battery.
What capacity and voltage does this battery provide?
It provides a full 37Wh / 4840mAh capacity at 7.6V, exactly matching the original ASUS SKU specification so your laptop regains its original battery life with stable, consistent power delivery under daily workloads.
Is the C21N1347 battery safe and covered by a warranty?
Yes — it is 100% brand new and built with protection ICs against overcharge, over-discharge and short circuit, and it ships with a 1-year warranty and dedicated after-sales support. Installation is plug-and-play with a 1:1 factory fit.
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
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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
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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
- How long does a KingSener battery last?2 to 3 years (approx. 500-800 charge cycles) under normal temperatures.
- Laptop says "Battery Not Detected". How to fix?1. Hard Reset: Unplug AC, remove battery, hold power button for 30 seconds.
2. Clean Contacts: Wipe metal connection pins.
3. Reset Drivers: Uninstall battery drivers in Device Manager, then restart.
4. Update BIOS: Ensure motherboard firmware is up to date. - 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.
- How do I store a laptop battery long-term?Store it at 50% charge in a cool, dry place. Never store at 0% or 100%. Cycle the battery every 3 months to maintain chemical activity.
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Are KingSener batteries safe?Yes. All batteries feature built-in IC protection against short-circuits, over-voltage, and overheating. Fully CE, FCC, and RoHS certified.