STANLEY® FATMAX® V20 18V 4.0Ah Lithium-Ion Battery – SB204-B3

Power Longer. Work Smarter. Stay Ready.

Take your cordless performance to the next level with the STANLEY FATMAX V20 18V 4.0Ah Lithium-Ion Battery SB204-B3 — engineered for professionals, contractors, workshops, and serious DIY users who demand dependable power, longer runtime, and seamless compatibility across their cordless tools.

Built with advanced V20 Lithium-Ion technology, this high-performance 4.0Ah battery delivers consistent power output, extended working time, and enhanced efficiency for demanding applications. Whether you're drilling, cutting, fastening, grinding, or handling heavy-duty jobsite tasks, the STANLEY® FATMAX® V20 battery keeps your tools running stronger for longer.

Designed as part of the powerful STANLEY® FATMAX® V20 Cordless System, this interchangeable battery works across multiple V20 tools, helping users simplify their workflow while reducing the need for multiple battery platforms.

Advanced V20 Lithium-Ion Technology

The STANLEY® FATMAX® V20 battery system features improved battery cell technology designed to provide:

• Longer runtime
• Higher efficiency
• Reduced self-discharge
• No memory effect
• Reliable power delivery
• Improved overall battery lifespan

Unlike older battery technologies, this advanced Lithium-Ion system allows the battery to maintain performance over time without losing capacity from repeated charging cycles.

No Memory Effect – Always Ready to Perform

This battery is engineered with no memory effect, meaning it can be charged at any time without reducing long-term battery performance.

Combined with minimal self-discharge, the battery stays ready for use even after storage, making it ideal for:

• Contractors
• Workshops
• Mobile technicians
• Industrial maintenance teams
• Automotive professionals
• Home improvement users

Simply charge, store, and get back to work whenever needed.

Integrated Battery Charge Indicator

Stay in control of your productivity with the built-in battery state-of-charge indicator.

The integrated charge level display allows users to quickly monitor remaining battery power, helping reduce interruptions and unexpected downtime during work.

Benefits:

• Convenient power monitoring
• Better job planning
• Reduced work interruptions
• Improved workflow efficiency

Part of the STANLEY® FATMAX® V20 Cordless System

The SB204-B3 battery is fully compatible with the STANLEY® FATMAX® V20 cordless range.

This interchangeable battery platform allows users to power multiple tools using one battery system, helping to:

• Reduce clutter
• Lower operating costs
• Improve convenience
• Simplify battery management
• Increase efficiency on the jobsite

Perfect for professionals already using the V20 platform.

Ideal Applications

Perfect for powering:

• Cordless drills
• Impact drivers
• Angle grinders
• Circular saws
• Sanders
• Outdoor power equipment
• Workshop tools
• Construction tools
• Automotive tools
• DIY and renovation equipment

Suitable for:

• Workshops
• Construction sites
• Industrial maintenance
• Automotive garages
• Fabrication shops
• Contractors
• Home users

Product Includes

✔ (1) STANLEY® FATMAX® V20 18V 4.0Ah Lithium-Ion Battery

Specifications

Why Choose the STANLEY® FATMAX® V20 4.0Ah Battery?

✔ Extended runtime for demanding tasks
✔ Advanced Lithium-Ion technology
✔ No memory effect
✔ Minimal self-discharge
✔ Built-in battery charge indicator
✔ Interchangeable V20 platform compatibility
✔ Reliable professional-grade performance
✔ Lightweight and portable design
✔ Ideal for professional and everyday use

Power Your Entire Workflow with V20 Performance

Whether you're on the jobsite, in the workshop, or tackling demanding projects at home, the STANLEY® FATMAX® V20 4.0Ah Battery delivers the reliable cordless power professionals trust every day.

Stay productive. Stay cordless. Stay powered with STANLEY® FATMAX®.