NShi AC17B8K laptop battery 15.2V 48Wh 3220mAh

Direct replacement for Acer Swift 3 SF315 series

The NShi AC17B8K is a lithium polymer battery built to replace the original AC17B8K part in Acer Swift 3 SF315-52 and SF315-52G models. It delivers 15.2 volts and 48 watt-hours of capacity, matching the factory specification for these ultraportable notebooks. Buyers who need a different voltage, a higher capacity or a form factor for another laptop series cannot use this unit.

Plug-and-play fit inside the existing chassis

Installation uses the stock connector and mounting points, so no adapter cables, BIOS updates or chassis modifications are required. The battery sits in the same compartment as the original cell and restores mobile operation immediately after the recommended initial charge cycles. Builders who want a larger pack, a second battery bay or an external power solution will not find those options here.

Steady output through a full workday

The 3220 milliampere-hour cell maintains consistent voltage during extended use rather than sagging after a short burst. Following the supplier guidance — discharge to five percent, charge to ninety-five percent and repeat three to four times — helps the pack reach its rated endurance. Users who routinely drain to zero percent or leave the charger connected continuously will see faster capacity loss.