The Mountfield 40Ah ePower Pro Battery (279000004) is a high-capacity professional lithium-ion battery engineered to power STIGA and Mountfield’s latest battery ride-on tractor platform. Designed for large-scale domestic and professional mowing applications, this advanced 56V ePower Pro battery delivers exceptional runtime, intelligent power management and robust durability for demanding mowing conditions.

Developed as part of the STIGA ePower Pro modular battery system, this battery is designed for use with compatible battery garden tractors, providing scalable runtime, swappable convenience and professional-grade performance. With advanced thermal management, sealed construction and smart battery monitoring, it offers a premium power solution for users managing large lawns and estates.

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Key Features

High-Capacity 56V Lithium-Ion Power

The battery features 56V output, 40Ah capacity and delivers approximately 2,000Wh of stored energy, providing substantial runtime for demanding mowing applications.

Designed to provide:

• Consistent high-output performance
• Fade-free power delivery under load
• Long runtime for large-area mowing
• Professional-grade energy storage capacity

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STIGA ePower Pro Modular Battery System

This battery is part of STIGA’s modular ePower Pro system, allowing operators to scale runtime depending on the application.

Performance potential includes:

• Single battery: coverage up to 7,500m²
• Dual battery setup: coverage up to 15,000m² (machine dependent)
• Swappable design for extended or near-unlimited runtime with additional batteries

This makes the system highly flexible for larger properties and commercial use.

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Advanced Battery Management System (BMS)

An integrated smart Battery Management System (BMS) continuously monitors:

• Cell balance
• Voltage stability
• Temperature management
• Charge and discharge optimisation

This helps maximise battery lifespan while maintaining consistent performance under heavy load.

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Advanced Thermal Management

The ePower Pro battery incorporates Phase Change Material (PCM) cooling technology, designed to absorb and regulate heat generated during operation.

Benefits include:

• Improved performance under sustained load
• Better temperature stability
• Enhanced cell protection
• Extended battery longevity

This makes the battery particularly well suited to demanding professional mowing applications.

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IP65 Sealed Aluminium Construction

Unlike many conventional battery packs, the ePower Pro features a fully sealed die-cast aluminium body with IP65 protection, offering resistance against:

• Dust ingress
• Moisture and water spray
• Outdoor debris
• Daily commercial wear

The rugged housing also contributes to structural strength and cooling efficiency.

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Fast Charging Capability

The battery supports rapid charging with compatible chargers, with recharge times of approximately 2.5 hours (charger dependent).

This helps minimise downtime and improve productivity.

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Suitable Machines / Compatible Models

The Mountfield / STIGA 40Ah ePower Pro Battery (279000004) is designed for compatible STIGA battery ride-on mowers, including:

• STIGA Estate 384e
• STIGA Estate 598e
• STIGA Tornado 398e
• STIGA Tornado 5108e

(Compatibility may depend on machine generation and battery system configuration — always confirm fitment before ordering.)

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Typical Applications

This battery is ideal for:

• Large domestic lawns
• Estate mowing
• Professional grounds maintenance
• Battery ride-on mowing systems
• Users requiring extended runtime or backup battery capacity

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Product Details

• Product Type: Lithium-Ion Ride-On Mower Battery
• Part Number: 279000004
• Battery Platform: STIGA ePower Pro
• Voltage: 56V
• Capacity: 40Ah
• Nominal Energy: 2,000Wh
• Protection Rating: IP65
• Weight: Approx. 12.8 kg
• Charging Time: Approx. 2.5 hours (charger dependent)
• Function: Powers compatible STIGA/Mountfield battery ride-on tractors

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Compared with Standard ePower Batteries – What Upgrades Does It Offer?

Compared with smaller standard STIGA ePower 48V batteries used in handheld tools and domestic walk-behind equipment, the 40Ah ePower Pro offers significant upgrades:

ePower Pro 40Ah advantages:

• Much larger 2,000Wh capacity for ride-on mower applications
• Professional modular battery system with dual battery capability
• IP65 sealed aluminium housing for tougher conditions
• Advanced PCM thermal control
• Smart BMS for higher performance under heavy load
• Swappable system designed for large-area mowing productivity

It is purpose-built as a professional tractor battery rather than a conventional handheld-tool battery pack.