Cyclops STALLION Battery 2.5 Joule DC Energizer

Speccing your system? See our electric fence energizer technical reference — joule sizing tables, voltage targets by species, grounding math, and the IEC/USDA standards behind the spec sheets.

2.5 Joules of Off-Grid Fence Power — American Made, Battery-Powered STALLION

The Cyclops STALLION 2.5 Joule DC Energizer is the entry point to Cyclops's battery-powered lineup — a low-impedance 12V DC fence charger that brings reliable fence power to remote paddocks and off-grid installations without needing mains power. At 2.5 joules, it's sized for smaller fence systems and rotational grazing paddock divisions where portability and battery efficiency matter.

Low-impedance design maintains a controlling voltage even with vegetation contact, and Cyclops's industry-leading lightning protection keeps the unit safe through storms. Proudly made in the USA with quality parts and a one-year warranty.

Features

2.5 Joule Low-Impedance Output
Maintains controlling voltage through vegetation contact — effective fence power for smaller off-grid systems.

12V DC Battery-Powered
Runs entirely off-grid on a 12V battery — no mains power required. Solar compatible for long-term installations.

Built-in Fence Load Detector
Monitors fence load continuously for reliable performance awareness.

Heavy-Duty Surge Suppressor
More lightning protection than any other charger on the market — built-in heavy-duty surge suppressor.

American Made
Proudly manufactured in the USA with quality parts and modular design.

Specifications

• Output Energy: 2.5 Joules
• Power Source: 12V DC battery (solar compatible)
• Ground Rods Required: 1 (6–8 ft)
• Warranty: 1-Year
• Made in: USA

Off-grid fence power, American made — the Cyclops STALLION delivers 2.5 joules of low-impedance DC fence power for remote paddocks and portable grazing systems.

Compare across the full lineup: See all electric fence energizers we carry — Speedrite, Gallagher, Cyclops, and Patriot — sized 0.12 to 86 joules. Need help sizing? Use our free electric fence charger sizing calculator or call 888-251-3934.