Specification:

Battery Type: Li-ion
voltage: 11.1V
Capacity: 24.4Wh/2200mAh

Replacement Part number:
3ICR19/66

A31N1519

Compatible with machines model:

ASUS X540 Series
ASUS R540SA R540L Series ASUS X540S X540L Series

ASUS X540LA Series:
X540LA-1A X540LA-1C X540LA-XX002T
X540LA-XX003T X540LA-XX004T X540LA-XX013T X540LA-3G X540LA-3F X540LA-3H  X540LA-XX021T
X540LA-SI302

ASUS X540LJ Series:
X540LJ-1A X540LJ-XX001T
X540LJ-XX014T 540LJ-XX015T X540LJ-XX044T X540LJ-1C X540LJ-3F X540LJ-3G X540LJ-3H

ASUS X540SA Series:
X540SA-1A X540SA-1C X540SA-XX041D X540SA-XX041T X540SA-XX085T X540SA-3F X540SA-3G X540SA-3H X540SA-XX012T
X540SA-XX020T

ASUS X540SC Series:
X540SC-1A X540SC-1C X540SC-3G X540SC-3H X540SC-3F

ASUS X540YA Series:
X540YA-3F X540YA-1A X540YA-1C