I'd look into the solar fence. You can put the solar panel anywhere there is sun, and run an insulated wire to where you want the fence to start from the charger. That's really the best option unless you want to sit and wait for the 'coons to come at night with the .22.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).