Parts for your 2019 Subaru Impreza-Batteries

2019 Subaru Impreza batteries: purpose, maintenance and replacement

Based on the 2019 Subaru Impreza Owner’s Manual (Electrical System—Battery), Subaru service literature, and Subaru Genuine Parts catalogues, the 2019 Subaru Impreza is fitted with a 12‑volt starting battery. Many AU/NZ trims also include Auto Stop‑Start, which specifies an enhanced battery type (EFB or AGM) for durability.

The battery’s job is straightforward but vital: it cranks the FB20 engine, powers lights and electronics under the bonnet and in the cabin, and stabilises voltage for the vehicle’s ECUs, safety systems, and infotainment. On models with Auto Stop‑Start, the battery also handles frequent restarts and deeper cycling, so it’s built tougher than a conventional flooded unit.

For servicing, a healthy battery keeps the Impreza starting cleanly and avoids odd electrical gremlins. Owners can expect around 3–5 years from a quality battery in typical Australian and New Zealand conditions