7 Best Fence Energizers for Beginners

Setting up your first electric fence feels like a major step, but the real puzzle is choosing the energizer that powers it. Get it right, and your animals stay safe and your garden stays protected. Get it wrong, and you’ll spend your weekends chasing escapees and patching fences.

Disclosure: As an Amazon Associate, this site earns from qualifying purchases. Thank you!

Choosing Your First Parmakit Fence Energizer

The wall of energizer boxes at the farm supply store can be intimidating. They all promise to keep things in, but the numbers and features vary wildly. Don’t get caught up in finding the single "best" one; focus on finding the right one for your specific piece of land and the animals you’re managing.

The decision boils down to three core questions. Answering them honestly will narrow your choices immediately.

• Power Source: Do you have a reliable outlet near the fence (mains), or are you fencing a remote pasture (battery/solar)?
• Fence Conditions: How long is your fence line, and will it be touching a lot of green, wet weeds? A short, clean fence needs far less power than a half-mile of polywire running through tall grass.
• Animal Type: What are you containing? Sensitive animals like horses respect a mild pulse, while woolly sheep or curious goats require a much stronger "bite" to learn the boundary.

A common mistake is buying the most powerful energizer you can afford. More joules (the measure of energy in the pulse) isn’t always better. A high-powered unit on a short fence for sensitive animals is overkill and a waste of money. The goal is to have enough power to be effective under your worst conditions, not to build a fortress.

Parmakit SECUR 35: Reliable Mains-Powered Fencing

If your paddock or garden is close to a barn, shed, or house, a mains-powered energizer is the simplest, most reliable option. The SECUR 35 is a perfect example of this set-it-and-forget-it power. You plug it in, connect it to your fence and ground rod, and you’re done.

This unit is ideal for short, single-wire fences for horses or protecting a large vegetable patch from deer and raccoons. With an output of 0.35 joules, it has enough pop to create respect on a clean fence line up to a couple of miles in perfect conditions, but it’s most at home on the typical small-acreage setup of a few hundred yards. There’s no battery to charge, no solar panel to keep clean—just consistent, reliable power.

Parmakit SECUR 100: For Tougher Fencing Conditions

Sometimes, your fence conditions aren’t perfect. The SECUR 100 is the mains-powered unit you choose when you need a bit more muscle. It’s for those situations where you anticipate some energy loss but still have access to an outlet.

Think of a multi-strand fence for sheep where their thick wool can insulate them from the shock, or a longer perimeter fence where some weed contact is inevitable. The SECUR 100 delivers a 1-joule pulse, providing a significantly stronger shock that cuts through minor interference and gets the attention of more determined animals. It’s the right tool when your fence is more than just a simple visual barrier.

This energizer still offers the plug-and-play convenience of a mains unit. The tradeoff is simply a higher initial cost for more power. If you have stubborn animals or less-than-ideal fence conditions, that extra power is an investment in peace of mind.

Parmakit B12: Portable Power for Remote Pastures

When you need to fence an area far from any electrical outlet, a 12-volt battery energizer is the classic workhorse. The Parmakit B12 is a straightforward, tough, and portable unit designed for exactly this job. It’s built for flexibility.

This is your go-to for rotational grazing systems. You can set up temporary paddocks with polywire and step-in posts anywhere on your property, hook up the B12 to a 12V deep-cycle marine battery, and you have instant containment. It’s powerful enough for a few goats, sheep, or a couple of cows in a remote field where running an extension cord is impossible.

The primary consideration here is battery management. The battery will need to be hauled back to the barn for recharging, typically every few weeks depending on its size and the fence load. The B12 offers ultimate location freedom at the cost of this routine maintenance chore.

Parmakit SECUR 130: Versatile 9V/12V Battery Unit

The SECUR 130 is all about giving you options in the field. Its ability to run on either a disposable 9V battery or a rechargeable 12V battery makes it one of the most versatile portable energizers available. This isn’t a minor feature; it changes how you can manage your pastures.

For short-term, highly mobile fencing, the 9V battery is brilliant. Think daily-move poultry netting or strip-grazing a small patch for just a week or two. The lightweight 9V battery makes the entire unit easy to carry and reposition without lugging a heavy 12V battery around. When you need more power for a longer duration, you simply switch the connections and hook it up to a 12V deep-cycle battery.

This energizer is for the farmer who does a bit of everything. You might use it on a 9V battery for your meat chickens in the spring, then connect it to a 12V to power a semi-permanent paddock for pigs in the summer. It adapts to the task at hand.

Parmakit S25 Solar Kit: Set-and-Forget Fencing

Solar energizers represent the ultimate in low-maintenance, off-grid fencing. The Parmakit S25 Solar Kit is an excellent entry point, combining a small solar panel, an internal rechargeable battery, and the energizer into one compact, easy-to-deploy unit.

This is the perfect solution for a remote chicken run, a small goat paddock, or protecting a beehive from bears where you don’t want to be constantly checking and charging batteries. You mount it on a T-post, connect your fence and ground, and let the sun do the work. It’s designed for shorter fences with minimal weed load, where its modest power output is more than sufficient.

The key is to match the tool to the job. The S25 will struggle on a long, overgrown fence line, especially after several cloudy days. But for a specific, small-scale application, its convenience is unmatched.

Parmakit S40 Solar: All-in-One Power for Small Stock

When you love the convenience of solar but need more of a punch, the Parmakit S40 Solar is the next step up. It’s a more robust all-in-one unit designed for small livestock that might test the fence a little harder, like sheep, goats, or calves.

The S40 features a larger solar panel and a more powerful internal battery, delivering a stronger 0.40-joule pulse. This provides a more consistent and potent shock, even with some light weed contact or during stretches of overcast weather. It has the power to maintain a psychological barrier for animals that might ignore a weaker fence.

Think of the S40 as the solution for your main remote paddock that stays in one place for the whole season. You get the "set-and-forget" benefit of solar power but with enough backbone to give you confidence that your animals will stay put. It’s a smart investment to reduce your daily chores.

Parmakit SECUR 200: Dual-Power Mains/Battery Hybrid

For the hobby farmer who needs maximum flexibility, a dual-power energizer is the smartest long-term investment. The Parmakit SECUR 200 can be powered by 230V mains electricity or a 12V battery, giving you two energizers in one.

This hybrid capability is incredibly practical. You can use it as a mains-powered unit for a permanent pasture near the barn during the spring and fall. Then, in the summer, you can unplug it, take it to your farthest field, and hook it to a 12V battery for a remote grazing setup. You aren’t forced to buy a second energizer when your needs change.

With a powerful 2-joule output, the SECUR 200 can handle longer fences, moderate weed pressure, and tough-to-contain animals. This is the energizer for someone whose farm plan is still evolving. It costs more upfront, but its ability to adapt to nearly any fencing scenario on a small farm makes it an economical choice over time.

Ultimately, the best Parmakit energizer is the one that fits your land, your animals, and your workflow. Don’t just look at the joule rating; consider your power source, your fence conditions, and how much time you want to spend managing your system. A well-chosen energizer is a silent partner that works reliably in the background, letting you focus on the rest of your farm.