Energizer MBS2800iThis 28 stored joule, dual purpose Energizer powers up to 250 miles or 1,500 acres of clean fence in ideal conditions with the option of powering either as a 110v plug in or battery solar. Powers: 50 kilometres 1000 acres of fence Contains: 100 stored Joules Suitable: For permanent fencing on large farms This energizer provides fence information at a glance, informing you of any problems immediately so you can take action to save time and money. A