Lead-acid battery YBX9012

12 Vfor electric vehiclesfor automotive applications

Overview
The Yuasa YBX®9000 12 V AGM battery is a next‑generation lead‑acid battery engineered for vehicles with emissions‑reduction systems such as Start‑Stop and regenerative braking. It is also suitable as a 12 V auxiliary battery for selected hybrid and electric vehicles. The design improves cycle life, charge acceptance and delivers additional power for onboard accessories when the engine is off.

Key features

• AGM (Absorbent Glass Mat) separator technology
• Designed for Start‑Stop systems, regenerative braking and energy recovery
• High cycle performance and fast charge acceptance during engine operation
• Provides reserve power for electrical accessories with engine off
• Leak‑proof VRLA construction; no free acid
• Maintenance‑free, delivered charged and ready to fit
• Optimized for partial state of charge (PSoC) operation
• Low self‑discharge for extended storage life
• Recommended charge rate: 3.5 A
• Designed in collaboration with OEM vehicle manufacturers

Applications and compatibility
Suitable as a starter/replacement battery for cars and light commercial vehicles factory‑fitted with AGM or as an upgrade for vehicles with conventional or EFB batteries. Can serve as the primary 12 V battery in selected hybrid and electric vehicles requiring AGM technology.

Technical specifications

• Range: YBX 9000 AGM Start Stop Plus Batteries
• Nominal voltage: 12 V
• Capacity (20 h): 50 Ah
• CCA (EN): 520 A
• Length: 207 mm
• Width: 175 mm
• Height: 190 mm
• Terminal type: T1
• Layout: 0
• Hold‑down: B13
• End venting: Yes
• Case type: L1 DIN AGM
• Handles: No
• Cover type: VRLA
• Flame arrestor: Yes
• Technology: Ca/Ca VRLA
• Separator type: AGM
• Recommended charge rate (A): 3.5 A
• Performance marking: W5_C2_V3_M3
• VDA rollover test: Yes

Installation and safety
The battery is supplied charged and ready for installation. When replacing a factory‑fitted AGM, always fit an AGM battery with equivalent specifications. AGM installations may require vehicle battery management adjustment or reprogramming. Follow manufacturer fitting instructions and relevant safety data sheets for handling and disposal.