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 and the Zareba 5 Mile Solar ESP5M-Z are evenly matched, rated 2.6 and 2.5. The Gallagher S12 Lithium Solar leads on warranty. The Zareba 5 Mile Solar ESP5M-Z wins on lightning cover. The Zareba 5 Mile Solar ESP5M-Z costs $9.99 less ($170 vs $179.99).
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 5 Mile Solar ESP5M-Z
#12 in Battery and solarFull review
A simple post mounted solar charger for a small paddock, rotational grazing strip or garden fence away from power.
Amazon $170$170
Which should you buy?
- Choose the Gallagher S12 Lithium Solar for warranty (3-year warranty vs 1-year warranty).
- Choose the Zareba 5 Mile Solar ESP5M-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 5 Mile Solar ESP5M-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) | 23 $1,133.33 per joule ($170, 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 1-year warranty |
| Lightning cover 15% | 0 lightning damage not covered | 100 warranty covers lightning damage |
Specifications
| Gallagher S12 Lithium Solar | Zareba 5 Mile Solar ESP5M-Z | |
|---|---|---|
| Output | ||
| Power | Solar | Solar |
| Output energy | about 0.1 J | 0.1 J |
| Stored energy | 0.1 J | - |
| Rated fence length | 4 miles | 5 miles |
| Peak voltage | - | 8.6 kV |
| Low impedance | - | Yes |
| Build | ||
| Battery | - | 6 V |
| Lightning cover | No | Yes |
| Warranty | 3 years | 1 year |