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Black rectangular lithium-polymer laptop battery with connector

POWER-FENG

POWER-FENG B21N1818-1 32Wh 7.6V laptop battery

SKU CH-SX38-Y3HJH

A 32 Wh, 7.6 V lithium-polymer replacement battery compatible with Asus X409, X412, X509, X512 and X515 series laptops

  • TypeBattery
  • Battery TypeLaptop Batteries
  • Li-polymer chemistry delivers stable 7.6V output for consistent performance
  • 32Wh capacity provides 4212mAh of runtime for daily tasks
  • Replaces B21N1818-1 B21N1818-2 B21N1818-3 C21N1818-2 part numbers
  • Fits Asus X512UF X512FB X712FA X412DA X412F X412FA X412FJ models
  • Brand new condition ensures full capacity from first charge

32Wh 7.6V Li-polymer laptop battery

This POWER-FENG B21N1818-1 battery supplies 32Wh at 7.6V using Li-polymer cells. It is a direct replacement for the original part in compatible Asus notebooks. The black casing matches the factory appearance. Buyers receive a brand-new unit ready for installation.

Verify the exact part number before ordering

Check the label on your existing battery for B21N1818-1, B21N1818-2, B21N1818-3 or C21N1818-2. Confirm that your laptop model appears in the supported list such as X512UF, X512FB, X712FA or the X412 and X515 series. Mismatched part numbers will prevent correct fit and charging.

Fits listed Asus models without extra hardware

The battery slots into the internal bay of the supported Asus V4000, V4200, V5200, Y4200, Y5200, FL8700, X409, X412, X509, X515 and R424F chassis. No adapter cables or firmware updates are required. Installation restores mobile runtime and frees the user from permanent mains connection.

Highlights

  • Li-polymer chemistry delivers stable 7.6V output for consistent performance
  • 32Wh capacity provides 4212mAh of runtime for daily tasks
  • Replaces B21N1818-1 B21N1818-2 B21N1818-3 C21N1818-2 part numbers
  • Fits Asus X512UF X512FB X712FA X412DA X412F X412FA X412FJ models
  • Brand new condition ensures full capacity from first charge

Specifications

TypeBattery
Battery TypeLaptop Batteries

Questions about this item

What does the 32Wh 7.6V battery include and is any tool or cable sold separately?

The battery ships as a single Li-polymer pack rated 32Wh at 7.6V with 4212mAh capacity in black; no tools, cables or adapters are included.

How do I choose between the listed part numbers B21N1818-1, B21N1818-2, B21N1818-3 and C21N1818-2?

All four part numbers refer to the same 32Wh 7.6V specification; pick the one that matches the sticker on your original battery.

What runtime can I expect from the 32Wh 7.6V rating in an Asus X512UF or X512FB?

The 32Wh 7.6V rating restores the original capacity for models such as X512UF and X512FB, delivering comparable run time to the factory pack.

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