I thought for years it would be silly to use a solar fencer when it's so easy to simply plug it in. Then I had a reason to need fencing in a remote location that had NO electric power anywhere close. I wasn't sure what I would do till I remembered those "silly" solar fencers.
The following information is straight from our Electric Fence partner Zareba. They are the experts when it comes to containing your livestock electrically.
To safely contain most beef cattle, you need a fence charger that delivers a minimum of 2,000 – 3,000 volts on the fence line. Voltage levels are impacted by vegetation on the fence line, length of fence and type of wire. Note: A minimum of 5,000 volts on the fence line is required to keep out predators.
We recommend you purchase a Zareba® fence charger capable of maintaining these voltage levels: