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Vertical Etching Tank for DIY PCB etching
DIY Invisible Fence battery
"Batteries + Bulbs" had this battery in stock for $4.19 each. It was not carried at our local Walmart, Walgreens, nor CVS.
Success! I have the integrated cover ring, so i carefully sliced off the top, notching around the clips like the original design. Using the tip of the carpet blade, I pried under the ring at each clip. It popped right off! Don't worry if the ring breaks because it is not necessary. Out of 2 power caps, one stayed in tact so I added it back, but the other works just as well.
yep all you need to do is open up the hole that exposes the battery with a utility knife large enough to liberate the battery. out it comes. swap with new 4 dollar battery and woolah! saved 35 bucks!
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