ASUS C21N1818 Replacement Battery
- Brand:
- ASUS
- Capacity Wh:
- 37 Wh
- Nominal Voltage:
- 7.7 V
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Manufacturer: ASUS Last updated: 2026-09-28
ASUS C21N1818 Replacement Battery Review
ASUS C21N1818-1 replacement battery (ASUS part 0B200-03190800), a 7.7V 37Wh internal Li-polymer pack listed by ASUS's parts reseller for the VivoBook 15 X512DA.
ASUS sells two batteries under the C21N1818 reference with different fit, so read the full code and part number on your old pack (C21N1818-1, 0B200-03190800) before ordering. The reseller lists 4730 to 4850mAh for this pack.
What to check before you buy
Match both the C21N1818-1 suffix and the 0B200-03190800 part number on your existing battery. Other C21N1818 and B21N1818 variants are sold for related VivoBook chassis and are not guaranteed to fit.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- VivoBook 15 X512DA owners with a C21N1818-1 pack
Not for
- VivoBook units fitted with a B21N1818 or C21N1818-3 pack
Specifications
What these specs mean| Brand | ASUS |
|---|---|
| Battery Model Code | C21N1818-1 |
| OEM Spare Part Number | 0B200-03190800 |
| Nominal Voltage | 7.7 V |
| Capacity Wh | 37 Wh |
| Capacity Basis | Seller Claim |
| Shipping Classification | UN3481 |
| Compatible Models | ASUS VivoBook 15 X512DA |
| Replaces Part Numbers | C21PpJH |