Thunderbird S-28B 2.5km Solar Electric Fence Energiser


Thunderbird S-28B 2.5km Solar Electric Fence Energiser

RRP: $345.00

SAVE 18%


SKU: S-28B


4 fortnightly payments of $71.00 Info ›


Up to 6 months interest free. Info ›

Introducing Thunderbird’s new range of solar energisers for electric fences, the S28B is an easy-to-install and use product for every farmer. It has a case that quickly slides over the topmost portion of the star post. Mounting can be completed in just a few steps.

Additionally, the product already comes with earth leads and fence. It also comes with handy pulse/operation lights, along with low battery warning. You can use these signals to know the status of the system.

Thunderbird designed the S28B to be fully portable and has its own rechargeable battery. It also has a carry handle for easy use and moving from one site to another when required. The solar electric fence energiser has a mains AC charger as well, which allows it to function even when exposed to poor weather conditions for an extended period.

S28B offers a choice between low and high power levels. When using low power, it helps conserve the system’s battery.

This electric fence energiser uses solar energy to power the whole system. It has encapsulated electronics to ensure the interiors are well-protected from moisture and damage caused by insects. The product is covered by a two-year warranty.

Taking convenience to a whole new level with the S-28B from Thunderbird.

Set this unit up in a matter of seconds, by either mounting on a Y or T steel post or sitting on the ground out of livestock reach. This unit ticks all the boxes when you are looking for quick, easy and super portable Australian made gear.


  • Easily mountable to Y or T steel posts (fully portable)
  • Pulse low battery light
  • Tough, weatherproof O-ring sealed enclosure
  • High / Low power output
  • Magnetic switch (no holes in case)
  • Inbuilt 12v battery Included (A.C. mains charger included)
  • The system automatically adjusts in accordance with the solar collection


2 Year Warranty

Model # S-28B
UPC 9323833004771
Brand Thunderbird
Shipping Weight 4.8000kg
Energiser Range 2.5km
Made In Australia
240v Charger Included Yes
Stored Energy High 0.23J
Operating Current Low 14mA
Carry Handle Yes
Internal Battery Included Yes
Voltage Output Low 5.7kV
Operating Current High 20mA
Manufacturer Warranty 2 Year Manufacturers and 6 Month Lightning Strike Warranty
Solar Panel 5 Watt
Stored Energy Low 0.13J
Voltage Output High 7.2kV

REVIEWS 55 Stars out of 6 Reviews. See More Reviews

Thunderbird S-28B

The thunderbird solar electric fence is a great product. Works perfectly, very happy with my purchase. The team at the grit were fast and professional.
Kieran on November 20, 2021

Thunderbird S28B energiser

Good service Good product
Russell B on September 05, 2020


We bought the same product for our small property and needed another when we checked Ebay and found these guys. Same product but way cheaper even with delivery!! Thoroughly recommend.
Bronwen R on January 13, 2020

Perfect for the horse paddock

I have two warmbloods I keep away from the fences with an electric fencing hot wire inner fence. This energiser powers the whole extremely large paddock. Very happy.
Cally on June 06, 2019

Thunderbird S28B

I have found this product to be very reliable, easy to install and being solar powered can be used successfully in remote locations. I would definitely recommend this product and The Grit were a fantastic supplier to deal with.
Julie Q on February 21, 2019

Solar Energiser

Works well
Geoff W on December 07, 2018