Best electric fence

how to make a fence charger that is powerfull. Keeps in cattle electric fence. Shocks through weeds and everything else. if your interested in the parts i used to build this solar powered electric fence charger then just click the links below.
solar pannel amzn.to/3cHpf9Q
the 12 volt powered shocker amzn.to/3QcGsp4
The battery just go to any auto part store and get a 12 volt rv or boat battery let me know what you all think of this setup i havent had a single cow out after I turned this electric fence shocker on.