The JVA MB8 Dual Power Electric Fence Energizer is a powerful and flexible solution. It works well for both farm fencing and predator exclusion. With 8 joules of output energy (12 joules stored), it can power long fences and handle tough conditions.

Power Options:

• This electric fence energizer is designed to run on either AC power (adapter included) or a 12V battery (battery not included). So, whether you’re near a power source or in a remote location, the MB8 gives you reliable performance.

In our use, this energizer has proven effective for predator deterrent systems. It helps keep out bears, wolves, coyotes, bobcats, cougars, and foxes—when installed as part of a properly designed exclusion fence. At the same time, it remains an excellent choice for livestock fencing, including cattle, sheep, and goats.

Key features:

• The Auto-Sync™ Technology keeps your fence safe and synchronized. If there’s a serious problem, an audible alarm lets you know right away. The LCD display shows fence voltage, battery voltage, and stored energy—so you always know how your system is performing.

When the fence load changes, the Power-on-Demand feature automatically increases the energy output. This helps maintain strong voltage, even under stress.

The MB8 is built for outdoor use. It has a UV-stable case, an O-ring seal for moisture protection, and reverse battery protection. It also supports both bi-polar and conventional fencing systems.

Even better, your purchase includes a FREE surge protector.

This helps protect the energizer from lightning strikes and power surges. Using it can reduce costly repairs and extend the life of your system.

In the box, you’ll find the MB8 energizer, AC power adapter, battery leads, surge protector, and instructions. Please note that a high-voltage lead-out cable is required but not included.