57 Choosing your electric fence unit 230 V power energisers – the FIRST CHOICE if a mains socket is available. These units provide security for an unlimited period. They are available in all the necessary power classes and are the best means of delivering the energy required (output 0.5 to 14.5 joules) on long fences or fences with vegetation, or for very robust animals. Animals are of course not harmed by this higher energy. All AKO units comply with applicable safety standards. If mobile use is intended, e.g. at tournaments, on trail or long-distance rides or simply on frequently changing pastures where there is no 230 V power supply available, you must resort to a battery-powered unit. For fences with heavier vegetation, 9 V compact solar units are inadequate and 12 V units must be used. 12 volt battery-powered units – strong performance even on fences with heavier vegetative growth. 12 V battery units are ideal for very robust animals, long fences and/or fences with vegetation if no 230 V connection is available. The discharge energy is comparable to that of power energisers (output approx. 0.5 to 5 joules). Rechargeable 12 V wet batteries are used as the power source, which must be recharged every 2 - 4 weeks or so depending on the type of device, power requirements and battery type. Solar modules, which convert solar energy into electricity and therefore constantly top up the 12 V battery, are a good add-on. 12/230 Volt DUO units – maximum flexibility combined with powerful output energies. Units of this type combine the unlimited security time of the 230 V units with the mobility of powerful 12 V units. A 12 V cable and 230 V adapter are included. 9 V dry battery units – the ideal units for smaller fences and paddocks. 9 V battery units are suitable for shorter fence lengths without vegetation. They are highly mobile and significantly lighter than 12 V units. The 9 V battery runs for a few months and can even cover an entire pasture season depending on the operating time, battery type and size (expressed in Ah – the more Ah (ampere hours), the longer it runs for). Once discharged, it cannot be recharged. 9 V units (even if these can also be operated with 12 V batteries) are weaker than 12 V units. 9 V units in this instance typically deliver approx. 0.15 to 0.35 joules. High-impact 9 V units (e.g. AKO PowerStation BD600 or EcoPower B500) can deliver up to 0.55 joules. Compact solar units similar to 9 V units for smaller fences without vegetation. AKO offers two types: S180 with a pulse of 0.25 joules and S550 with a pulse of 0.55 joules. The 12 V gel battery is integrated and is constantly charged via the solar module built into the housing. If the battery has to be topped up, it can be recharged using the 230 V mains adapter. 230 V 12 V 12 V DUO 9 V solar Which device is suitable for my fence? ...consider the vegetation.