A heavy duty plug-in charger for large pastures and predator fences, with unusually full voltage specs and lightning cover.
Amazon $194.94The Parmak Super Energizer 5 is the better electric fence energizer overall, rated 4.6 to 3.8. The Parmak Super Energizer 5 leads on lightning cover. The Gallagher M1500 wins on output. The Parmak Super Energizer 5 costs $655.05 less ($194.94 vs $849.99).
For large ranches running hundreds of acres of multi-wire fence, where Gallagher’s service network and modular design matter.
Amazon $849.99Prices 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.
Which should you buy?
- Choose the Parmak Super Energizer 5 for lightning cover (warranty covers lightning damage vs lightning damage not covered).
- Choose the Gallagher M1500 for output (11 J output vs 6.3 J output).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every plug-in electric fence energizer; a clear win is highlighted. How we rank explains each one.
| Factor weight | Parmak Super Energizer 5 | Gallagher M1500 |
|---|---|---|
| Overall rating | 4.6/5 | 3.8/5 |
| Value 35% | 79 $30.94 per joule ($194.94, 6.3 J output) | 53 $77.27 per joule ($849.99, 11 J output) |
| Output 25% | 80 6.3 J output | 93 11 J output |
| Warranty 25% | 100 3-year warranty | 100 3-year warranty |
| Lightning cover 15% | 100 warranty covers lightning damage | 0 lightning damage not covered |
Specifications
| Parmak Super Energizer 5 | Gallagher M1500 | |
|---|---|---|
| Output | ||
| Power | Plug-in (110 V) | Plug-in (110 V) |
| Output energy | 6.3 J | 11 J |
| Stored energy | - | 15 J |
| Rated fence length | 50 miles | 160 miles |
| Rated area | - | 900 acres |
| Peak voltage | 14.5 kV | - |
| Low impedance | Yes | Yes |
| Build | ||
| Lightning cover | Yes | No |
| Warranty | 3 years | 3 years |
