We have 3-4 Gallaghers.
Couple S20's in the mix.
What's the weight on those Gallaghers?
I've got a Parmak 6v one and it's more than I'd like to take camping and maybe not enough for a determined bear.
Years ago, over on the coast, I had a bear get in a beehive. A borrowed 110-120 charger stopped him when he came back, then when I got the solar one I had no more problems, but don't know for sure that one would try again. He got quite a jolt, bent the hell out of the chickenwire garden fence, went through a barbwire one, and left a trail heading away through the grass. When I first discovered the broken into hive, I asked Game and Fish guy about deterring or having to shoot him. Was told electric fence works, unless the bear has had success, then they just bull through it.
The Parmak 6v works good for deer though.