The 42 Wh Standard Rechargeable Li-ion Battery Type 9JM71 11.4v -MYIYAE is a high-quality laptop battery designed for optimal performance. With a voltage of 11.4V and a Li-Ion battery type, this product ensures long-lasting power for extended use. Ideal for computers and desktops, this rechargeable battery provides a reliable source of energy to keep your devices running smoothly without the worry of running out of battery. Sealed , check your computer for size and battery type to make sure this battery will work.