Product Overview
The C21N1808 laptop battery is listed for Asus Chromebook C423NA Series. The source specifications identify 7.7V, 38Wh, 4940mAh, Li-ion, while the compatible part numbers and device models are organized below for clear product matching.
Replacement Battery Specification
| Battery Model | C21N1808 |
|---|---|
| Capacity | 38Wh / 4940mAh |
| 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
- C21N1808
- C21PqCH
- 0B200-03060000
- 0B200-03130000
Compatible Laptop Models
- For Asus Chromebook C423NA Series
- C423NA-BV0001 C423NA-BV0017 C423NA-BV0044 C423NA-BV0051 C423NA-BV0054 C423NA-BV0078. C423NA-BZ0004 C423NA-BZ0027 C423NA-BZ0038 C423NA-BZ0057 C423NA-DH02. C423NA-EB0108 C423NA-EB0020 C423NA-EB0033 C423NA-EB0050 C423NA-EB0063. C423NA-RH91T-CB C423NA-0031AN4200 C423NA-1A.
- For Asus Chromebook C523NA Series
- C523NA-A20007 C523NA-A20025 C523NA-A20026 C523NA-A20033. C523NA-A20045 C523NA-A20057 C523NA-A20093 C523NA-A20105. C523NA-BR0035 C523NA-BR0043 C523NA-BR0067 C423NA-BV0028. C523NA-EJ0052 C523NA-EJ0053 C523NA-EJ0054 C523NA-EJ0058. C523NA-DH02 C523NA-IH24T C523NA-0021AN4200 C523NA-1A.
FAQ
Q: What battery model is listed for this product?
A: The listed battery model is C21N1808, with the compatible device information shown in the product description.
Q: What voltage and capacity are specified?
A: The source specification lists 7.7V, 38Wh and 4940mAh, using Li-ion cells.
Q: Which compatible devices or models are listed?
A: The compatible list includes For Asus Chromebook C423NA Series; C423NA-BV0001 C423NA-BV0017 C423NA-BV0044 C423NA-BV0051 C423NA-BV0054 C423NA-BV0078. C423NA-BZ0004 C423NA-BZ0027 C423NA-BZ0038 C423NA-BZ0057 C423NA-DH02. C423NA-EB0108 C423NA-EB0020 C423NA-EB0033 C423NA-EB0050 C423NA-EB0063. C423NA-RH91T-CB C423NA-0031AN4200 C423NA-1A.; For Asus Chromebook C523NA Series; C523NA-A20007 C523NA-A20025 C523NA-A20026 C523NA-A20033. C523NA-A20045 C523NA-A20057 C523NA-A20093 C523NA-A20105. C523NA-BR0035 C523NA-BR0043 C523NA-BR0067 C423NA-BV0028. C523NA-EJ0052 C523NA-EJ0053 C523NA-EJ0054 C523NA-EJ0058. C523NA-DH02 C523NA-IH24T C523NA-0021AN4200 C523NA-1A..
Q: Which replacement part numbers are listed?
A: The listed replacement references are C21N1808, C21PqCH, 0B200-03060000, 0B200-03130000.
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.High Quality Garanteed
Our battery products are manufactured using high-quality materials and advanced technology to ensure stability and reliability.
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.
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
Shipping Methods
Ship To
Est. Delivery Time
Shipping Cost
Taxes & Fees
USPS
United States(No AK/HI, PR/GU, PO Boxes, or APO/FPO)
10-15 business days
Free
Free
Canada Post
Canada
10-15 business days
Free
Free
Royal Mail / Yodel
United Kingdom
15-20 business days
Free
Free
Local Carriers
Germany/Netherlands/Norway
15-20 business days
Free
Free
La Poste
France
15-20 business days
Free
Free
Local Carriers
Australia/New Zealand
15-20 business days
Free
Free
Correios
Mexico/Spain/IT
15-25 business days
Free
Free
Local Carriers
SE Asia / East Asia
5-10 business days
Free
Free
Local Carriers
Rest of Europe
20-25 business days
From $5.99
Free
Local Carriers
UAE / Saudi Arabia / Israel
16-20 business days
From $7.99
Free
Overseas Warehouse Shipping Times & Costs
Shipping Methods
Ship To
Est. Delivery
Shipping Cost
Taxes & Fees
US Warehouse
United States
3-7 business days
Free
Free
European Warehouse
EU countries
5-7 business days
€0 – €5.99
pricing varies by country
Free
UK Warehouse
United Kingdom
3-7 business days
Free
Free
Canada Warehouse
Canada
5-7 business days
Free
Free
Payment Methods
Paypal
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Account Name: ShenZhen KingSener Science and Technology Co., Ltd
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Google Pay
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Apple Pay
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Bank Transfer
If you cannot use the above payment methods and the order amount exceeds HK$2000, please contact our customer service to obtain your bank account and pay via 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.
-
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.