Zareba 30 Mile Solar ESP30M-Z
For remote pastures where a small solar unit is too weak: it runs a long cattle fence from its own panel and battery.
Amazon $299.99$299.99
The Zareba 30 Mile Solar ESP30M-Z is the better electric fence energizer overall, rated 3.4 to 2.8. The Zareba 30 Mile Solar ESP30M-Z leads on lightning cover and output. The Gallagher S30 Lithium Solar wins on warranty. The Zareba 30 Mile Solar ESP30M-Z costs $40 less ($299.99 vs $339.99).
Gallagher S30 Lithium Solar
A portable lithium solar charger for netting, small pastures and keeping wildlife out of crops.
Amazon $339.99$339.99
Prices 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 Zareba 30 Mile Solar ESP30M-Z for lightning cover (warranty covers lightning damage vs lightning damage not covered) and output (0.5 J output vs 0.2 J output).
- Choose the Gallagher S30 Lithium Solar for warranty (3-year warranty vs 2-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every battery and solar electric fence energizer; a clear win is highlighted. How we rank explains each one.
| Factor weight | Zareba 30 Mile Solar ESP30M-Z | Gallagher S30 Lithium Solar |
|---|---|---|
| Overall rating | 3.4/5 | 2.8/5 |
| Value 35% | 37 $599.98 per joule ($299.99, 0.5 J output) | 14 $1,619 per joule ($339.99, 0.2 J output) |
| Output 25% | 53 0.5 J output | 33 0.2 J output |
| Warranty 25% | 50 2-year warranty | 100 3-year warranty |
| Lightning cover 15% | 100 warranty covers lightning damage | 0 lightning damage not covered |
Specifications
| Zareba 30 Mile Solar ESP30M-Z | Gallagher S30 Lithium Solar | |
|---|---|---|
| Output | ||
| Power | Solar | Solar |
| Output energy | 0.5 J | 0.2 J |
| Stored energy | - | 0.3 J |
| Rated fence length | 30 miles | 20 miles |
| Rated area | - | 60 acres |
| Peak voltage | 7.8 kV | 9.3 kV |
| Low impedance | Yes | - |
| Build | ||
| Battery | 12 V | - |
| Solar panel | 5 W | 3.8 W |
| Lightning cover | Yes | No |
| Warranty | 2 years | 3 years |