110v AC Plug-In Chargers and Energizers
Pros & Cons
- Least cost (to purchase and operate) per joule of output. If you need a high output (in energy/pulse) energizer this is the type to buy.
- Also least cost/year to operate. Small units use as little as 5 watts/hour. Even large units rarely exceed the energy draw of a 60-watt light bulb.
- Higher pulse frequency—50–60 pulses per minute provide extra deterrence for wildlife fences.
- Cold temperatures don’t affect them.
- Recommended for complex “whole farm” electric fence systems—with long stretches of electrified permanent fences plus portable and semi-permanent electric fences.
- Best for long fences that experience high weed contact on “live” wires. This occurs when the energized wires are near the soil (less than 24 in.).
- Can be complex to install. High output needs more ground rods. Will need leadout wires (which often must be buried), “feeder” fences and switches.
The most important reasons to buy a plug-in energizer are:
- They provide the most pulse energy per $$ invested in an energizer.
- They are less likely to cause users hassle than the alternatives.
- They (usually) offer higher pulse frequency than other designs.
- Two-year warranty.
What size should you get?
Up to 5 to 6 joules of peak output if you can afford it—and the fence(s) is not exposed to the public. More output equals less hassle from weeds and livestock. If it is to power a fence that’s exposed to the public then the HoriSmart units are the most prudent choice.
Wide impedance or low impedance?
If the energized wires are going to be exposed to a lot of green vegetation then low impedance units with high joule outputs are the wise choice. If the grass regularly turns brown for 3 plus weeks during the grazing season due to dry soils then wide impedance is best.
- Volts/voltage: A measure of electrical potential. Comparable to pressure (psi) in water and air systems. Electrons can’t flow from point A to point B unless adequate voltage is present to overcome the resistance (measured in ohms).
- Joule(s): Measure of the volume of electrical energy (electrons) in a pulse. Comparable to pints, quarts, gallons in water systems. When enough “uninvited” electrons (joules) pass through an animal’s (or human’s) nervous system, it reacts in pain and surprise.
- Amps/ampere/amperage: Measure of rate of flow of electrons per unit of time. Comparable to gallons per minute in water systems.
- Pulse frequency: Number of pulses per minute. 40 pulse/minute = a pulse every 1.5 seconds.
- Ohms (Ω): Measure of resistance to electrical flow. More Ω means more resistance. It’s additive—if 1000 ft of wire is 200Ω then 2000 ft is 400Ω.
- Conductor: A material with low ohm numbers—copper, aluminum, stainless steel, hi-carbon steel. Wood, if wet internally (e.g. sap) or externally (dew, rain) is a conductor. Moisture in soil and grass stems is also a conductor. Animal tissue with body fluid in it or moisture upon it is a conductor.
- Electroplastic conductors/netting: A cable or ribbon comprised of small conductive metal strands and non-conductive plastic strands. The metal carries the electrons. The plastic provides visibility and elasticity.
- Insulators: Materials with high ohm numbers such as fiberglass, plastic and coated ceramic. Wood, if dry internally and externally is an insulator. Dry animal hair and wool are poor conductors and so are considered insulators (so much so that I’ve thrown sheepskin over a live fence to allow me to step over it).
When you buy an energizer from Premier, you purchase more than an energizer. You also obtain these benefits:
- If an energizer fails within 2 years of its date of purchase, we will replace the module or unit at our cost. Your credit card will be charged for the replacement but you will receive full credit when the failed item is back at Premier. Your only cost is shipping the failed item to us. If the original energizer is over 2 years old, we will repair and/or replace it, but you pay for the repair cost and freight. Note: Policy does not apply to: failure due to abuse or neglect.
- Free next-day shipment of warranty replacement energizers. A unit can be shipped by 2 p.m. Central Time to be received the next day. (Calls on Friday after 2 p.m. will ship Monday.) If you think your energizer has failed, call us at 1-800-282-6631. We’ll help you test your energizer to ensure that it has truly failed. This is important because 25% of the units we receive back work fine. The fence was at fault instead of the energizer.
- Free technical support. We will provide free advice and support both before you purchase an energizer or fence and afterwards for as long as you wish our help. This applies to energizer repair issues also. If you are not sure how to replace a module, our people will “walk” you step-by-step through the process via telephone.
- Solar energizer packages. With larger energizers (over 1 joule), the panel, battery and energizer need to be correctly sized for each situation. We will do this for you at no cost if you call us.
- Five-year assurance against energizer obsolescence. Premier’s “contract” with our customers includes repair or replacement of any non-working units for up to 5 years whether the unit is “obsolete” or not. During the 2-year warranty period, Premier pays for the replacement cost.
NOTE: Do not use an energizer that is labeled high impedance, continuous current, weed burner or weed chopper. We recommend only low or wide impedance energizers. Continuous current (high impedance) energizers have a pulse type that is long (in time) but low in energy. Low impedance have pulses that are very short (in time) but higher in energy. The long duration continuous current pulses create a spark that is also long in duration - long enough for it to set fire to grass/weeds/leaves/needles that might touch the fence. In our opinion they should never be used on any fence - for this reason. They must not be used on electroplastic fences (can melt the plastic). Low impedance pulses are so short (3/10,000 of a second maximum) in time that heat build up is less likely.
Warning: In 1991 an accidental fatality occurred when a young child’s head contacted an electrified fence while the child was crawling on wet grass. The fence was correctly installed and functioning properly. The energizer was a UL approved unit. As a result, Premier strongly advises against allowing toddlers access to any electrified fences. Also, due to this incident and others, experts now suggest that human contact by an energized wire to the head and neck may be the most dangerous point of contact. We urge all to especially avoid this kind of contact.