Skip to content

FREE Ground Delivery on qualified items for orders over $100. Learn More »

Shop Products
0 Items

Catalog Quick Order

Do you know the item # of the product you want to order?

Notice

The item you have selected () is back-ordered and will not be shipped with the rest of your order. If you order now, we will ship it to you as quickly as possible after it arrives.

  or  

Item Not Found

The item you have selected () could not be found. Please check the item # you entered.

Patriot P20 Energizer

★ ★ ★ ★ ★ Read reviews »

Use this 2 joule low-impedance charger for medium-length temporary and semi-permanent fences for livestock and wildlife. Also for medium-length permanent fences for cattle and horses.

Can be powered by either a 110v plug-in or 12v battery (sold separately under accessories below).

Don't forget to order a Wiring Harness! This energizer does not include a Wiring Harness (sold below), which connects leads and clips to attach to the fence and ground rod.

Energizer Kits: Patriot P20 Plug-in Kit and Patriot P20 Battery Kit are available to help simplify your purchasing decision.

Comparison chart with scales graphicView a comparison chart »

  • Patriot P20 Energizer

    Item #115020 | Weight 3.60 lbs
    In Stock
    $161.00

  • Wiring Harness

    Item #130800 | Weight 0.20 lbs
    In Stock
    $7.00

  • Patriot P20 (Battery) Energizer Kit

    Item #201979 | Weight 8.70 lbs
    In Stock
    $201.45

  • Patriot P20 (Plug-In) Energizer Kit

    Item #201981 | Weight 12.05 lbs
    In Stock
    $219.20
Videos & Data
Properly Storing Energizers and Batteries for Winter Play
Properly Storing Energizers and Batteries for Winter
Installing a Plug-in Energizer Play
Installing a Plug-in Energizer

Instructions/Diagrams:

Common Uses
A 110v AC or 12v DC electric fence energizer used mostly to keep out deer, raccoons and rabbits from garden/orchard areas. It is also used to keep in poultry, cattle, sheep, goats, horses, and guard dogs. Effective at protecting against coyotes, stray dogs, bear and fox.

Specs

Joules

  • 2.7 stored joules.
  • 2.0 released joules.
  • 1.72 joules in moist soils.
  • 0.4 joules in dry soils.

Miscellaneous

  • Requires 6' of ground rod (To order, see accessories tab above.) in the ground.
  • Comes with a 110v plug-in adapter with a 6' cord and a 12v battery adapter with 40" cord.
  • Draws 4.5 watts per hour.
  • Draw from a 12v battery is 163 milliampere (mA) per hour. With this energizer a 12v 100 ampere hour, deep cycle battery will last approximately 14 days* on a clean or a weedy fence. *Assumes being drawn down to 40% between recharges.
  • Use a 20-40 watt solar panel with the Patriot P20.
  • Manufactured by Tru Test.

Should Power...

  • 2.5 miles of 3 strand cattle fence
  • 1 mile of a 5-7 strand sheep fence
  • 16 of the 164' sheep/goat nets
  • Up to 8 of the 164' poultry nets
    • All distances are dependent on amount of grass/weed load on the fence.

Can be used as a solar energizer

  • See options under accessories tab above.

Benefits
Versatile. Can be used as a plug-in energizer or as a battery energizer. Adapts from one style to the other in a few seconds. Can be moved around easily. Low cost.

Installation
To use the energizer as a plug-in unit:
The energizer can be mounted either inside or outside of a building, but not where there is risk of fire. The energizer must be mounted vertically. Protect the energizer from direct rainfall.
  1. Connect an insulated cable (stripped back 1 - 2" on ends) to the fence terminal on energizer, run the cable to the fence line and connect, or use the positive part of the wiring harness.
  2. Then run a second length of cable from the ground terminal (with ends stripped again) on the energizer to the ground rod(s), or use the negative part of the wiring harness.
  3. Secure to ground rod(s) with a clamp.
  4. Plug the energizer directly into an outlet and test fence. Do not use an extension cord as it may cause a decrease in voltage and expose the unit to the elements.

To use the energizer as a battery unit:
  1. Attach wiring harness to energizer.
  2. Attach the bare end of the wire with the red clip to the fence terminal of the energizer. Attach the red alligator clip to the fence.
  3. Attach the bare end of the wire with the black clip to the ground terminal of the energizer. Attach black alligator clip to the ground rod(s).
  4. Connect the energizer to the battery.
  5. Insert battery adapter into the energizer. Attach red alligator clip from the adapter to the red “+” terminal of the battery.
  6. Attach black alligator clip from the adapter to the black “–” terminal of the battery.

Unit indicator light should flash and a tic-tac sound will be heard. If the indicator light doesn't flash, then the unit/battery should be checked.

Troubleshooting
To determine if the fault is with the fence or the energizer...
  1. To check—first turn off the energizer.
  2. Then disconnect the wires going to the fence and ground rod system.
  3. Turn the energizer back on.
  4. Then measure the voltage on the energizer between the 2 terminals (fence and earth) with a Digital Fence Voltmeter or other fence testing device. Touch one end to “–” earth terminal and the other end to “+” fence terminal.
  5. If the tester reads under 4000v, the energizer (or possibly the battery if it’s a battery/solar energizer) is the problem.
  6. If the tester reads more than 4000 volts, the energizer is working properly and the fence is the problem.

    7. Most energizers put out between 5000v and 8000v when there is no load (i.e. no fence hooked up).

If the energizer is faulty and you're using it as a 110 volt plug-in unit...
  1. Check that the 110v outlet is "live" by using a plug-in drill or test light.
  2. If the test light works and the energizer does not, call Premier.

If the energizer is faulty and you are using it as a battery unit you need to learn if the battery or the energizer is the problem…

  1. If it's a 12 volt energizer carry the unit to a nearby vehicle and attach the input cords carefully to the vehicle's battery.
  2. If the energizer now works, then your fencer's battery needs to be recharged or replaced.
  3. If the energizer does not work, then you should call Premier re. repairs.

If the fence is at fault, then you must find the fault(s) and fix them. Here's how to start this process: If you have a Fault Finder you can simply touch the fence with the Fault Finder at various points along the electric fence(s). The Fault Finder will tell you at each point which direction to go in to locate the problem. Move in that direction testing as you go and you will arrive at the problem.

If you lack a Fault Finder…

  1. Walk or drive along the fence looking for any point in which the energized wires touch the soil, a steel post or a steel wire. On HT wire fences, check the wires at braces to see if they are touching a hot wire. On netting, look for a hot wire touching the metal stake at the bottom of the plastic posts. Also look for damaged insulators.
  2. If the fence can be separated into several parts (by switches or by disconnecting parts of it), you can locate the problem by beginning at the far end and then progressively turn off or disconnect the sections of fence. When the voltage on the remaining fence rises sharply, you've located the section(s) that's causing the problems.
  3. The alternative to (2.) is to begin at the fencer and progressively turn on sections of the fence. When the voltage suddenly drops you can assume that the problem is in the section most recently connected.

Precautions
  • Make sure the power is turned off before working on the fence or the energizer.
  • Make sure the fence line is clear of grass and debris that may lower the fence’s voltage.
  • Ensure the solar panel is facing due south and avoid placing the unit where it may be covered by shadows from trees, bushes or tall grass.
  • Regularly remove all debris from the solar panel.
  • Batteries that are less than 40% charged may become damaged. Batteries MUST remain fully charged in freezing conditions.
  • When using a 12v deep cycle battery, there is no case to protect the battery, so the battery will be exposed to the elements and risk of theft.
  • This unit is not modular, therefore it is not repairable.

To Reduce Risk & Liability

  • Never place your head or upper spine near an electrified wire. Accidental head or neck contact can occur when pushing a voltage probe into the soil. Be careful when doing so to avoid head-to-wire contact!
  • Never attempt to step over or climb through an energized fence of any kind.
  • Never encourage anyone to touch an electric fence.

Warranty
2-year warranty for energizers and solar panels cover lightning damage and defective parts or workmanship. Should an energizer fail, we will replace the unit, bill you for the cost to do so, then reimburse you for warranted expenses after we have examined the failed unit. Misuse and flood damage are not covered.

Accessories

Listed below are recommended optional components or related items. Your particular situation may require alternative recommendations. Please call and talk to our consultants if there are any questions at 800-282-6631.

Replacement Parts
Reviews
Average Rating: ★ ★ ★ ★ ★ 3.6 out of 5
Number of reviews: 5 customers reviewed this product.
Recommended: 3 out of 5 said they would recommend this product to a friend.

Write a Review

You must be logged in to leave a review. Please sign in.

Patriot P20 Energizer
★ ★ ★ ★ ★

It died after 9 months of use. I would not recommend.

We offer a 2-year warranty for energizers and solar panels which includes lightning damage, defective parts or workmanship. (Misuse and flood damage are not covered.) Please contact us online or call 800-282-6631. — Premier
Patriot P20 Energizer
★ ★ ★ ★ ★

I intended to use it with poultry netting. Found out the hard way that it is far to weak.

Patriot P20 Energizer
★ ★ ★ ★ ★

I will only purchase Patriot fence chargers. This is my fourth one (multiple fences in different areas) and they are a great value for the money. HIGHLY recommend.

Patriot P20 Energizer
★ ★ ★ ★ ★

I had an inexpensive energizer from the local feed store. After a few months my three goats started literally walking over the fence (it is one of those portable, flexible pole types)! Partly my fault because I accidentally left the fence off for two days and they got a lot of practice walking over it quickly, so even when I turned it back on, they were willing to endure the very mild shock. Digital fence gauge showed around 4kV near the charger. But when I put the P20 on there, oh boy, now they stay inside again. Digital fence gauge shows over 10 kV near the charger with the P20. And it is the same fence in the same place with the same wires and ground system. Also, my poor puppy wasn't expecting such a bad shock either. He is a spirited dog, though and he is fine now. He does make a point of keeping a couple of inches of clearance between his nose and the fence though.

The shock is powerful enough that I don't think the goats will be willing to risk finding out if the fence is on (they used to do this sometimes), so even if I accidentally leave it off again, I bet the goats will stay inside.

Patriot P20 Energizer
★ ★ ★ ★ ★

The P20 is an economical and long lasting energizer. I accidentally left one out this past winter (in Wisconsin) and it is working just fine this spring. I have 6 of them now and use them on the sheep's electronet fences and the cattle's 3 wire fences.