For ranchers who want one powerful charger that can move between a barn outlet and a battery at a remote pasture.
Amazon $570The Gallagher MBS400 Multi-Power rates 4.0 among battery and solar electric fence energizers; the Zareba 75 Mile AC EAC75M-Z rates 3.9 among plug-in ones. The Zareba 75 Mile AC EAC75M-Z costs $361.33 less ($208.67 vs $570).

A strong value for large pastures and perimeter fences with bulls or predators, where weeds would drain a smaller charger.
Amazon $208.67Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different power source classes (battery and solar and plug-in), and each is scored against the reference points for its own class, so a rating says how well each does among its own power source peers. How we rank explains each factor.
| Factor weight | Gallagher MBS400 Multi-Power | Zareba 75 Mile AC EAC75M-Z |
|---|---|---|
| Overall rating | 4.0/5 | 3.9/5 |
| Value 35% | 65 $183.87 per joule ($570, 3.1 J output) | 64 $52.17 per joule ($208.67, 4 J output) |
| Output 25% | 94 3.1 J output | 69 4 J output |
| Warranty 25% | 100 3-year warranty | 50 2-year warranty |
| Lightning cover 15% | 0 lightning damage not covered | 100 warranty covers lightning damage |
Specifications
| Gallagher MBS400 Multi-Power | Zareba 75 Mile AC EAC75M-Z | |
|---|---|---|
| Output | ||
| Power | Battery | Plug-in (110 V) |
| Output energy | 3.1 J | 4 J |
| Stored energy | 4 J | - |
| Rated fence length | 60 miles | 75 miles |
| Rated area | 280 acres | - |
| Low impedance | Yes | Yes |
| Build | ||
| Battery | 12 V | - |
| Lightning cover | No | Yes |
| Warranty | 3 years | 2 years |