How many of you guys use them? The more I learn the more I want to get one. I may charge these on my boat when I'm out in the water. Or buy another set and not take a chance out there. I saw a few bags on Amazon. What do you think of these?
https://www.amazon.com/Battery-Firep...ag=googhydr-20
https://www.amazon.com/Battery-Firep...ag=googhydr-20
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