I don't know how well it works. I ordered a 50 mile AC charger. It was in stock when I ordered it. 3 days later I received a 25 mile DC charger! I called Zareba. The 50 mile AC was now out of stock. The DC charger won't do me any good. I need an AC one. They had no idea when more would arrive. No apology. Nothing. I ordered another charger somewhere else. I called back the next and told them to refund my credit card.
The charger is doing an excellent job it has performed just as advertised and I will always come back to zareba for all my electric fence needs thank all of you for a fabulous product that is well designed and built.
I have used the Zareba 50-mile AC Powered Low Impedance Charger for several years and am quite happy with it. I bought another as a spare to keep on hand in the event the electrodes wear out or it gets hit by lightning. However, their rod insulators are terrible. I need insulators for the 5/8" (#5) rebar I use as posts. Zereba post insulators (for wire and tape) are near impossible to thread correctly, and they are not open on the end to slip around the post - instead you need slide it over the top of the post. Try doing that when you have 7 wires above the one one you need to replace. The designers of these terrible insulators probably never put up a fence in their lives. The insulators by parmakusa are far superior - easy to install and tough.