Patriot SolarGuard 150
A small acreage solar charger with a long warranty, for goats, horses or a rotational grazing paddock.
Amazon $209$209
2.7/5
A portable lithium solar charger for rotational grazing and small pastures, if you value Gallagher’s battery and warranty over raw output.
- 0.1 JOutput
- 12 milesRated fence
- SolarPower
- 9.3 kVPeak voltage
Check price at Amazon$289.99
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Lithium battery charges faster and lasts longer than lead acid, per Gallagher
- Adapts output to stored energy to keep the fence live through cloudy spells
- Carry handle and built in panel make it easy to move between paddocks
- Three year warranty including the battery
Cons
- Pricey for 0.15 J of output
- Lightning damage is excluded from Gallagher’s US warranty
- Gallagher recommends only about 2 miles of real world fence
The Gallagher S Series Solar family
Every Gallagher S Series Solar model we rank, smallest first. Ratings compare each against its own power source.
| Model | Output | Rating | Price |
|---|---|---|---|
| Gallagher S20 Lithium Solar (this one) | 0.1 J | 2.7/5 | $289.99 |
| Gallagher S30 Lithium Solar | 0.2 J | 2.8/5 | $339.99 |
| Gallagher S12 Lithium Solar | about 0.1 J | 2.6/5 | $179.99 |
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its power source. How we rank explains each one.
Specifications
| Model number | G350404 |
|---|---|
| Output | |
| Power | Solar |
| Output energy | 0.1 J |
| Stored energy | 0.2 J |
| Rated fence length | 12 miles |
| Rated area | 40 acres |
| Peak voltage | 9.3 kV |
| Build | |
| Solar panel | 3 W |
| Lightning cover | No |
| Warranty | 3 years |
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