Monbatt 665 Battery

The Monbat 665 Battery is a robust 12 V starter battery designed for vehicles requiring the “665” size/fitment — a reliable option for cars, vans, and light commercial vehicles. Built to deliver solid cranking performance and dependable starts, it’s a practical choice when replacing a worn or under-performing battery.

Key Specifications & Features

• Voltage: 12 V 

• Capacity: 120 Ah (C20) 

• Cold Cranking Amps (CCA): 810 A Dimensions: 345 mm (L) × 175 mm (W) × 230 mm (H) 

• Weight: ~28.7 kg 

• Fitment Code: “665” — suitable for vehicles specified for this size 

• ** reliable starting power** for everyday driving and standard vehicle needs

Why Choose This Battery

• Delivers ample capacity and cranking power — ideal for mid-size cars, vans or light-duty commercial vehicles.

• Standard 665 form factor ensures straightforward fitment for vehicles designed around this battery size.

• Durable, maintenance-free design for hassle-free use and long-term reliability.

Ideal For

• Passenger cars, vans, small commercial vehicles requiring a 665-spec battery

• Drivers who want a solid, no-frills starter battery — good for everyday use and reliable starts

Click & Collect is available during all shop opening hours

FREE delivery for all order over €150 inc Vat placed online in Ireland, This excludes BULKY ITEMS (Pallet deliveries) T&C apply. 

If you place an order online, we will contact you if any of your items are out of stock with current lead times or alternatives if suitable.

Your product is covered by a 12 month Warranty or more if you opted for the extended warranty. Make sure you register your product.