C21N1819 Replacement Battery Specification
- Battery Model: C21N1819
- Capacity: 4940mAh / 38WH
- Voltage: 7.7V
- 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
- C21N1819
- C21N1819-1
- 0B200-03200000
- 2ICP4/59/134
Compatible Laptop Models
- Asus VivoBook 14 F420FA Series
- Asus VivoBook 14 F420UA Series
- Asus VivoBook 14 S420UA Series
- Asus VivoBook 14 R459UA Series
- Asus VivoBook 14 X420F Series
- Asus VivoBook 14 X420U Series
- Asus VivoBook 14 X420FA Series
- Asus VivoBook 14 X420UA Series
- Asus VivoBook A420UA Series
- Asus VivoBook R420UA Series
- Asus VivoBook P1411FA Series
- Asus VivoBook Y406F Series
- Asus VivoBook Y406FA Series
- Asus VivoBook Y406FA8265 Series
- Asus VivoBook Y406U Series
- Asus VivoBook Y406UA Series
- Asus VivoBook Y406UA8250 Series
Product Features
- Reliable Performance: 38WH capacity delivers dependable power for ASUS Vivobook 14 laptops, perfect for students and professionals who need all-day productivity and portability.
- OEM-Grade Quality: Manufactured with premium lithium-ion cells to meet or exceed original ASUS specifications for reliable daily use and long-term performance.
- Wide Compatibility: Designed specifically for ASUS Vivobook 14 F420FA, F420UA, and S420UA models, ensuring perfect fit and optimal performance.
- Premium Li-ion Technology: Advanced lithium-ion cells deliver stable voltage output, efficient charging cycles, and longer battery lifespan with support for hundreds of charge cycles.
- Easy Installation: Direct drop-in replacement for original ASUS battery with simple plug-and-play design, no technical expertise required for battery swap.
- Comprehensive Safety: Built-in protection circuitry guards against overcharge, over-discharge, short-circuit, and overheating to ensure safe operation and protect your laptop.
Why Choose This Battery?
This C21N1819 replacement battery is the perfect power solution for students, professionals, and mobile workers using ASUS Vivobook 14 laptops. With 38WH capacity and 7.7V output, it delivers dependable power for all-day productivity, remote work, online learning, and entertainment, keeping your laptop running when you need it most.
Compatible with ASUS Vivobook 14 F420FA, F420UA, and S420UA models, this battery is backed by a 1-year warranty and rigorous quality testing. Perfect for students, remote workers, and everyday users who need reliable backup power for their ASUS Vivobook laptops.
Restore your laptop's portability and productivity with this affordable, high-quality replacement battery that delivers the power you need for work, study, and entertainment on the go.
注意：
这不是所有兼容笔记本电脑机型的完整列表。您可以打开笔记本电脑的底部来检查原装电池型号。如有任何兼容性问题，请在线咨询我们。外壳采用耐用材料制成，主板采用先进技术，电池芯采用优质原材料生产，确保长期使用后不会损坏。
我们的产品配备过压、过流、过充等多重保护技术，有效保护电池和设备的安全。
配送方式
| 运输方式 | 配送至 | 预计送达时间 | 运费 | 税费 |
|---|---|---|---|---|
| USPS / DHL | 美国 | 10-15 个工作日 | 免费 | 免费 |
| Canada Post | 加拿大 | 10-15 个工作日 | 免费 | 免费 |
| Royal Mail / Yodel | 英国 | 15-20 个工作日 | 免费 | 免费 |
| DHL | 德国 | 15-20 个工作日 | 免费 | 免费 |
| La Poste | 法国 | 15-20 个工作日 | 免费 | 免费 |
| Correios | 巴西 | 15-25 个工作日 | 起 $6.99 | 免费 |
| 本地快递 | 东南亚 / 东亚 | 5-10 个工作日 | 免费 | 免费 |
| 本地快递 | 欧洲其他地区 | 20-25 个工作日 | 起 $5.99 | 免费 |
| 本地快递 | 阿联酋 / 沙特阿拉伯 / 以色列 | 16-20 个工作日 | 起 $7.99 | 免费 |
📦 运输及物流信息
需要更快的运输？ 我们提供本地仓储服务。
请访问我们的 “本地配送” 页面查看可立即发货的商品。
1. 如何追踪包裹：
请根据您的目的地选择对应的追踪链接：
- 欧洲及美洲： 17track.net/en
- 中东地区： mena56.com
- 亚洲： 17exp.kingtrans.cn
需要帮助？
如果在上述网站上无法找到您的包裹，请立即联系我们。
📧 邮箱： sales@batterymall.com / info@batterymall.com
📱 WeChat/WhatsApp： (+86) 198 6775 1872 / (+86) 191 2767 3310
🚚 预计送达时间
(1) 从中国发货：
- 亚洲：5-20 个工作日
- 北美：10-15 个工作日
- 欧洲/南美：15-20 个工作日
(2) 从本地仓库发货：
- 美国仓库：3-5 个工作日
- 欧洲仓库：2-10 个工作日
- 俄罗斯仓库：3-5 个工作日
注意：具体到达时间取决于不同国家及海关处理速度。
⚠️ 税费及海关信息：
全球产品价格已包含关税（部分国家可能需要提供税号）。具体运费请参考结算发票。如包裹被海关查验，将进行特殊处理。
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银行转账
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.
-
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.