Customized version of https://www.thingiverse.com/thing:57281

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=57281

Using the following options:

_part = bottom
_batteryDiameter = 15.5
_insideHeight = 35
_columns = 4
_rows = 1
_walls = 1.2
_base = 1.2
_lipHeight = 2
_fitGap = 0.1
_labelText =
_labelFont = write/orbitron.dxf
_labelDepth = -0.3
_labelHeight = 8