ASUS FL5900U A556U K556U X556U F556U Replacement Battery C21N1509 | 7.6V 38Wh

ASUS FL5900U A556U K556U X556U F556U Replacement Battery — C21N1509

Restore full battery performance to your ASUS laptop with this 100% new replacement battery, built to original specifications.

Specifications

• Battery Type: Li-ion
• Voltage: 7.6V
• Capacity: 38Wh
• Recharge Cycles: 500+
• Operation Time: Approx. 2–4 hours (varies by usage)

Part Numbers

C21N1509

Compatible Models

• ASUS FL5900U
• ASUS A556U
• ASUS K556U
• ASUS X556U
• ASUS F556U

Tip: Check the bottom label of your laptop to confirm your model before purchasing.

Why Choose This Battery?

• ✅ 100% new — never refurbished or reused cells
• ✅ Built-in protection against overcharge, over-discharge, and short circuit
• ✅ Plug-and-play replacement
• ✅ 1-year warranty included