Description

Thunderbird S90B Solar Fence Energiser

The Thunderbird S90B is a portable, self-contained solar electric fence energiser designed for livestock fencing and off-grid applications. With 0.91 joules of stored energy, it can power up to 10km of clean fencing under ideal conditions.

The integrated solar panel charges an internal rechargeable battery during daylight. A mains battery charger is also supplied, allowing the battery to be recharged during extended periods of poor weather or limited sunlight.

Why Choose the Thunderbird S90B?

• Powers up to 10km of clean fence under ideal conditions
• 0.91 joules of stored energy
• Integrated 12-watt solar panel
• Internal rechargeable battery
• Mains battery charger supplied
• Full and reduced power settings
• Large display shows fence-voltage information
• Low-battery warning
• Slides directly over a standard steel post
• Compact and portable design
• O-ring-sealed enclosure
• Magnetic switch eliminates unnecessary openings in the casing
• Australian made

Self-Contained Solar Power

The S90B combines the energiser, solar panel and rechargeable battery in one portable unit. This makes it suitable for remote fence locations without requiring a separate panel mount or external battery enclosure.

Position the solar panel facing north in an open area where it will receive direct sunlight throughout the day. Keep the panel clean and free from shade to support reliable battery charging.

Mains Charger for Poor Weather

A compatible mains battery charger is supplied for use during extended periods of cloud, rain or limited sunlight. This allows the internal battery to be restored when solar charging alone is insufficient.

Follow Thunderbird’s charging instructions and only use the supplied charger or a replacement approved for the S90B.

Full and Reduced Power Settings

The selectable power levels allow operation to be adjusted for different fence conditions. Full power can be used when stronger performance is required, while the reduced setting can help conserve battery energy on shorter, cleaner fences.

The display provides a convenient indication of fence voltage and battery condition. A suitable fence tester should still be used when checking performance at different points along the fence.

Portable Installation

The moulded enclosure slides directly over a standard steel star post, allowing the energiser to be installed without a separate mounting frame. Its carry handle also makes it easier to relocate when fencing requirements change.

The S90B is suitable for rotational grazing, temporary paddock divisions, remote livestock areas and smaller permanent farm fences.

Understanding the Fence Distance Rating

The advertised 10km distance represents a clean fence operating under ideal conditions. Vegetation touching the live wires, multiple conductors, poor connections, damaged insulators and inadequate earthing can substantially reduce its effective working distance.

Electric netting can create a particularly heavy load because it is positioned close to the ground. Consider a larger energiser if the system includes multiple nets, heavy vegetation or significant future expansion.

Product Specifications

• Brand: Thunderbird
• Model: S90B
• Product SKU: S90B
• Maximum fence distance: Up to 10km under ideal conditions
• Stored energy: 0.91 joules
• No-load voltage: Approximately 7.7kV
• Voltage at 1000 ohms: Approximately 5.7kV
• Power source: Integrated solar panel
• Solar-panel size: Approximately 12 watts
• Battery: Internal rechargeable battery
• Power settings: Full and reduced
• Display: Fence-voltage and battery information
• Mounting: Slides over a standard steel post
• Switch type: Magnetic
• Enclosure: O-ring sealed
• Mains battery charger: Included
• Warranty: Two-year Thunderbird manufacturer warranty
• Country of manufacture: Australia

Is the Thunderbird S90B Right for Your Fence?

The S90B is suitable for clean electric fences up to 10km where mains electricity is unavailable. Its internal battery, integrated solar panel and portable design make it useful for rotational grazing, livestock paddocks and permanent off-grid fencing.

For long multiwire systems, severe vegetation pressure or larger farm applications, consider selecting a higher-output solar energiser with greater stored energy and battery capacity.

Correct earthing is essential. Contact Horsley Wholesale if you need help choosing a solar energiser, earth system or portable fencing equipment.

Browse our solar electric fence energisers for other off-grid fencing options.

Additional information