3 Cell Battery box with Proto area
thingiverse
I Salvaged another old laptop battery from the disposal box and this one had three lots of three parallel cells in series so I designed a battery box for them but added a location for a small breadboard and a holder for a bare ESP-12 board. In my configuration the three cells are wired in parallel so the supply is 3.6V (4.1V fully charged). I suppose you could wire them in series and get 10 - 12V battery pack. Unfortunately in the first one I printed (in the picture) the ESP-12 doesn't quite fit so I adjusted it on the one I uploaded.
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