Gallagher BA40 (9V/12V) energiser
Gallagher's 9V energisers have been completely redesigned. Without exception, these are powerful battery-powered units that are easy to use, robustly designed and have the quality you would expect from Gallagher. The BA40 model has a black housing with an orange cover. This unit has an energy saving mode, so the battery lasts longer as the unit sends out delayed pulses and changes the pulse strength. The light on the energiser indicates the battery pulse. The BA40 is suitable for larger (mobile) fences.
This energiser is supplied with a connection cable set to connect the battery energiser with the fence and the earthstake. A 12 volt battery can be attached to the energiser, for this you would need connection set 005499.
What's in the box:
- 1 Gallagher electric fence energizer BA40
- 1 set of fence and ground cables
- 1 instruction manual
- be aware, battery is not included but sold seperately
Gallagher BA40 Energiser – Key Features
- Flashing green LED shows each fence pulse
- Power options: connects to a 9V battery or 12V rechargeable battery (battery not housed inside the unit)
- Simple operation: easy on/off switch
- Improved connections for optimal electrical contact
- Rugged, outdoor-ready design with IPX4 protection (splash-proof from all directions)
- Practical carrying handle for easy transport
- Battery-saving circuit extends battery life
- Deep discharge protection for 12V operation
- Built-in lightning protection and waterproof housing for extra durability
- Includes connection set (battery not included)
Technical Specifications
- Power source: 9V or 12V battery
- Area coverage: up to 2 hectares / 5 acres
- Power consumption:
- Normal mode: 9V / 43mA
- Economy mode: 9mA
- LED indicators: on/off and pulse status
- Manufacturer: Gallagher – proven cutting-edge technology
- 7-year Gallagher warranty (with registration)





This is how the energy-saving circuit works:
This energiser has 2 different operating modes. In mode 1, the unit generates a standard pulse with maximum energy. In mode 2, the unit generates 1 pulse with full energy (100 %), followed by 3 pulses with half energy (50 %). This ensures that the battery lasts longer and there is still enough power on the fence.
Gallagher quality
To ensure you get a quality product when you buy the BA40 energiser, Gallagher has a unique testing procedure.
Firstly, Gallagher puts its energisers through some extreme tests during their development. All energisers are dropped from a height of 1 metre. Each side of the energiser falls onto a hard concrete surface. The requirement of this test is that the device still functions and is protected by its housing.
Secondly, the model is subjected to a temperature stress test. The power supply unit should still function at -80 °C and +180 °C.
If the model passes these tests, it is ready for production.
To ensure that your new model delivers what it promises, it is tested for 24 hours before shipping. This ensures that it functions properly.