Flysky NB4 Noble end cap with USB
thingiverse
This is so you can use the radio, charge the internal battery, back up models and upgrade firmware without ever attaching the external battery. For people that prefer the lighter option of not having the external attached. You will need the upper connector part of an external battery, and one of these: https://www.amazon.com/gp/product/B0183KF7TM/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
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With this file you will be able to print Flysky NB4 Noble end cap with USB with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Flysky NB4 Noble end cap with USB.