Battery Green Cell AS01 for ASUS K40 K50 K60 K70 X70, Li-Ion 10.8V 4400mAh, 6 cells, Black

Green Cell AS01 is a replacement Li‑Ion battery designed for ASUS laptops including K40, K50 (K50AB, K50C), K51 (K51AC), K60, K70, X70 and X5DC series. The battery uses Green Cell lithium‑ion cells and modern control electronics to deliver the stated capacity, stable operation and protection against common power faults. It is compatible with multiple laptop models and is offered in a black housing with a nominal capacity of 4400 mAh.

Advantages

The Green Cell AS01 battery uses high‑quality Li‑Ion cells that resist the memory effect and are designed for long service life, with up to approximately 1,000 full charge cycles while maintaining capacity. Integrated control electronics ensure smooth communication with the laptop and provide protections such as overcharge, overdischarge and short‑circuit safeguards. The housing is shaped to match the original battery compartment for reliable fit and mechanical protection.

Suitable for

• ASUS K40 series laptops
• ASUS K50, K50AB, K50C models
• ASUS K51, K51AC models
• ASUS K60 and K70 series
• ASUS X70 and X5DC models

Key specifications

• Battery technology: Lithium‑Ion (Li‑Ion)
• Capacity: 4400 mAh
• Compatibility: ASUS K40, K50, K50AB, K50C, K51, K51AC, K60, K70, X70, X5DC
• Colour: Black
• Manufacturer: Green Cell
• MPN: AKKBAGRERD440001
• EAN: 5902701411732

How to use

Switch off the laptop and disconnect the power adapter before replacing the battery. Remove the old battery according to the laptop manufacturer's instructions, insert the Green Cell AS01 battery ensuring correct alignment, and secure it in place. Connect the power adapter and charge the new battery fully before first use. After installation, verify that the system recognises the battery and that charging proceeds normally.

Recommendations

For best longevity, avoid deep discharges and store the battery at around 40–60% charge if it will not be used for an extended period. Use the original or certified charger and avoid exposure to high temperatures or moisture. Recycle the old battery according to local regulations.