Gallagher S12 Lithium Solar
#11 in Battery and solarFull review
A compact lithium solar charger for poultry, goats and short strip grazing fences, with a three year warranty that covers the battery.
Amazon $179.99$179.99
The Gallagher S12 Lithium Solar is the better electric fence energizer overall, rated 2.6 to 2.5. The Zareba 10 Mile Solar ESP10M-Z wins on lightning cover. The Gallagher S12 Lithium Solar costs $20.01 less ($179.99 vs $200).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Zareba 10 Mile Solar ESP10M-Z
#14 in Battery and solarFull review
A good value self contained solar charger for a remote pasture or rotational grazing paddock with clean fence lines.
Amazon $200$200
Which should you buy?
- Choose the Zareba 10 Mile Solar ESP10M-Z for lightning cover (warranty covers lightning damage vs lightning damage not covered).
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 | Gallagher S12 Lithium Solar | Zareba 10 Mile Solar ESP10M-Z |
|---|---|---|
| Overall rating | 2.6/5 | 2.5/5 |
| Value 35% | 7 $2,249.88 per joule ($179.99, 0.1 J output, estimated from stored joules) | 19 $1,333.33 per joule ($200, 0.1 J output) |
| Output 25% | 11 about 0.1 J output (0.1 J stored) | 25 0.1 J output |
| Warranty 25% | 100 3-year warranty | 0 warranty not published, scored as none |
| Lightning cover 15% | 0 lightning damage not covered | 100 warranty covers lightning damage |
Specifications
| Gallagher S12 Lithium Solar | Zareba 10 Mile Solar ESP10M-Z | |
|---|---|---|
| Output | ||
| Power | Solar | Solar |
| Output energy | about 0.1 J | 0.1 J |
| Stored energy | 0.1 J | 0.3 J |
| Rated fence length | 4 miles | 10 miles |
| Peak voltage | - | 9.5 kV |
| Low impedance | - | Yes |
| Build | ||
| Battery | - | 6 V |
| Lightning cover | No | Yes |
| Warranty | 3 years | - |