A made in USA solar charger for small to medium remote pastures, with three years of lightning cover.
Amazon $259.99The Parmak Deluxe Field Solar-Pak 6 rates 4.4 among battery and solar electric fence energizers; the Zareba 25 Mile AC EAC25M-Z rates 3.2 among plug-in ones. The Zareba 25 Mile AC EAC25M-Z costs $126.32 less ($133.67 vs $259.99).

A dependable plug-in charger for a medium pasture of cattle, horses or goats, with lightning damage covered for two years.
Amazon $133.67Prices 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 | Parmak Deluxe Field Solar-Pak 6 | Zareba 25 Mile AC EAC25M-Z |
|---|---|---|
| Overall rating | 4.4/5 | 3.2/5 |
| Value 35% | 68 $162.49 per joule ($259.99, 1.6 J output) | 38 $133.67 per joule ($133.67, 1 J output) |
| Output 25% | 79 1.6 J output | 37 1 J output |
| Warranty 25% | 100 3-year warranty | 50 2-year warranty |
| Lightning cover 15% | 100 warranty covers lightning damage | 100 warranty covers lightning damage |
Specifications
| Parmak Deluxe Field Solar-Pak 6 | Zareba 25 Mile AC EAC25M-Z | |
|---|---|---|
| Output | ||
| Power | Solar | Plug-in (110 V) |
| Output energy | 1.6 J | 1 J |
| Rated fence length | 25 miles | 25 miles |
| Peak voltage | 9 kV | - |
| Low impedance | Yes | Yes |
| Build | ||
| Battery | 6 V | - |
| Lightning cover | Yes | Yes |
| Warranty | 3 years | 2 years |