✔ Compatibility:

Designed for ASUS X540, X540L, X540SA, X540S, X540LA, X540YA & other X540-series models.

Replace part numbers: C11P1609, C21P1609, B31N1625 (verify exact ASUS OEM code).

✔ Specifications:

Voltage: 11.1V

Capacity: [Insert mAh, e.g., 2600mAh / 29Wh]

Battery Type: Li-ion (2-cell or 3-cell)

Connector: Original ASUS-compatible plug

✔ Safety & Warranty:

CE / RoHS Certified

Overcharge/overheat protection

12-month warranty

✔ Package Includes:

1 x Replacement Battery

Installation guide

High-Performance Replacement Battery for Acer Aspire 4720 / AS07A31

✔ Compatibility: Designed for Acer Aspire 4720 and other compatible models requiring AS07A31 battery.
✔ Specifications:

Voltage: 11.1V

Capacity: 4400mAh / 48Wh

Battery Type: Li-ion (3-Cell)

Connector Type: Standard Acer-compatible plug

✔ Safety & Reliability:

CE / RoHS Certified

Built-in protection against overcharge, overheating & short circuits

1-Year Warranty

✔ Package Includes:

1 x Astrum Replacement Battery

User Manual