Parts for your 2018 Mitsubishi Eclipse cross-Batteries

2018 Mitsubishi Eclipse Cross batteries

Yes, the 2018 Mitsubishi Eclipse Cross is fitted with a 12‑volt battery. This is confirmed in Mitsubishi’s 2018 Eclipse Cross owner’s manual and dealer service information, which specify a conventional lead‑acid battery for petrol models and an Enhanced Flooded Battery (EFB) or Absorbent Glass Mat (AGM) unit where Auto Stop & Go (AS&G) is equipped. There was no PHEV model in 2018, so there’s no high‑voltage traction pack to worry about—just the main 12‑volt battery under the bonnet.

The battery handles far more than starting the engine. It stabilises the electrical system, powers safety and comfort tech, keeps ECUs happy, and supports features like keyless entry, lights, and infotainment when the engine’s off. On AS&G models, the battery is built to cope with frequent restarts and deeper cycling, which is why an EFB or AGM spec is required.

As part of routine servicing, a battery check is smart every 10,000–15,000 km or twice a year—especially before winter or after hot Aussie/Kiwi summers. Most owners see 3–5 years of life, but short trips, accessories, and heat can shorten that. If cranking is slow, the stop/start won’t engage, windows crawl, or there’s a battery warning lamp, it’s time for a test.

• Choose the right spec: use an EFB/AGM if the vehicle has AS&G