Gallagher B300 Battery Energiser - 12V
Gallagher B300 Battery Energiser - 12V additional 1Gallagher B300 Battery Energiser - 12V additional 2Gallagher B300 Battery Energiser - 12V additional 3
Seven year warranty

Save: £20.95 £398.05 inc VAT £331.71 ex VAT Was: £419.00 ex VAT


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Price ex VAT £331.71 £321.76 £308.49
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Suitable for both 9 and 12 volt usage, this high powered battery energiser has four distinct settings, which can be used to increase its functionality, whilst also optimising its energy efficiency. 

  • Suitable for use with the Gallagher 12V 85Ah battery (not included)
  • Features a prominent display panel which contains both a low battery and a fence voltage indicator. 
  • Powers fences of up to 20km
  • Can be converted to solar operation with solar panel kit (not included)
  • Various power modes to suit different animals and also save battery life
  • Water resistant casing and allows for easy transportation
  • Powerful 12V battery energiser
  • Supplied with indicator for fence and battery status
  • Shock-resistant housing
  • Ideal in combination with solar energy
  • Very reliable device

Code: 394008

Output Voltage (V) 10
Voltage with 500 Ohm (V) 5.8
Stored energy (J) 2.6
Output energy (J) 2
Recommended length without growth (km) 20
Recommended length with light growth (km) 8
Recommended length with considerable growth (km) 4
With display LED Yes
Suitable for vegetation level Average
Output voltage @100Ω 1.6
Recommended Grid Area (ha) 15

About The Extended 7 Year Warranty

This energiser is eligible for an incredible extended 7 year warranty from Gallagher.

All Gallagher energisers come with a 2 year warranty as standard, to receive the FREE extra 5 years warranty all you have to do is register your energiser on the Gallagher website within 3 months of the purchase date.

UK Mainland Delivery Prices

Weight Price exVAT Service Tracked
0 - 2kg £3.10 Economy 5-7 Working Days Yes
2 - 5kg £5.99 Economy 5-7 Working Days Yes
0 - 10kg £7.32 1 - 2 Day Yes
10kg - 30kg £7.32 + 26p per kg over 10kg 1 - 2 Day Yes
31kg and above £25.00 + 66p per kg over 31kg 1 - 2 Day Yes


UK Highlands & Islands
Highlands and Islands delivery starts at £17.99 (exVAT) and will be calculated automatically at the checkout.

EU Delivery Prices

Country Weight  Price*
France, Germany, Belgium, Luxembourg, Netherlands 0 - 30kg £8.91
  30 - 60kg £43.26
Austria, Denmark, Monaco, Switzerland 0 - 30kg £10.84
  30 - 60kg £49.74
Czech Republic, Italy, Slovakia,  Spain  0 - 30kg £11.74
  30 - 60kg £75.70
Belarus, Lithuania, Romania, Turkey  0 - 30kg £95.17
  30 - 60kg £190.34



How quickly will my order arrive?
We are committed to getting your order to you as soon as possible.

We use a delivery service that aims to get your orders to you within 1 - 2 working days. Please allow 1-5 working days for processing on items that are ordered in.

We send direct from suppliers as much as we can to help keep this processing time to a minimum.


Can I track my delivery?
Yes. If you provide us with a mobile number or email when you checkout we will send you information from our courier which allows you to track the progress of your parcel as well as other additional options as stated below.


In-flight delivery options
Our courier will send you a 1-hour delivery window on the day of delivery and you have the option to change this if required at no extra charge or you can also let the courier know that you want the parcel left in a safe place.


When does your courier deliver?
Our courier will deliver between Monday and Friday.


Special delivery instructions
If you have any special instructions for delivery, such as directions or where to leave your parcel, please include them in the 'special instructions' section at the checkout. 

Any other questions, please click here to view our full delivery FAQ.

Returns Policy

Customers must return unwanted items to us within 30 days of receipt. This does not affect your statutory rights.

The delivery charge is non-refundable except in cases where the goods are faulty or in cases where the order was cancelled under the UK Distance Selling Regulations.

Genius Tools

Vapormatic provide a lifetime warranty on their range of Genius tools.


Items that are from the Vapormatic brand have a 12 month warranty that provides a parts and labour guarantee.

Please Note: Due to Health & Safety At Work Regulations, we require any used faulty goods to be returned into us in a clean condition before we accept them and issue a refund.