I've used automatic batteries. They have several disadvantages and one advantage. Their one advantage is negated by the size of the Echo or any PV too large to hold in your mouth unaided. Can you answer my question how the auto battery of an Echo is any different than any other automatic battery?
I've used eGos and kGos. Both have manual batteries. An automatic battery has no advantage in a mid or large PV. If it did, they'd be available in more than one model. The larger size of an Echo negates any possible benefit of an auto battery and doesn't do a thing to address all the disadvantages of one.
I've used eGos and kGos. Both have manual batteries. An automatic battery has no advantage in a mid or large PV. If it did, they'd be available in more than one model. The larger size of an Echo negates any possible benefit of an auto battery and doesn't do a thing to address all the disadvantages of one.