Parmak Magnum 12
A rugged, efficient battery charger for remote pastures and predator control, with a long lightning covered warranty.
Amazon $133.08$133.08
4.4/5
A made in USA solar charger for small to medium remote pastures, with three years of lightning cover.
- 1.6 JOutput
- 25 milesRated fence
- SolarPower
- 9 kVPeak voltage
Check price at Amazon$259.99
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Runs day and night from the sun, so no battery swaps
- Three year warranty covers lightning damage
- Panel and battery included and weatherproof for outdoor mounting
- Built in performance meter shows fence condition
Cons
- Only 2,650 V into a 500 ohm load, low for weedy lines
- Battery warranted only one year
- Parmak does not say what load its joule rating is measured into
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 | DF-SP-LI |
|---|---|
| Output | |
| Power | Solar |
| Output energy | 1.6 J |
| Rated fence length | 25 miles |
| Peak voltage | 9 kV |
| Low impedance | Yes |
| Build | |
| Battery | 6 V |
| Lightning cover | Yes |
| Warranty | 3 years |
Alternatives in this power source
Patriot PBX200 Battery
A powerful battery charger for large remote pastures and rotational grazing, ready for a solar panel when you add one.
Amazon $195$195
Gallagher MBS400 Multi-Power
For ranchers who want one powerful charger that can move between a barn outlet and a battery at a remote pasture.
Amazon $570$570
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