Spectra Bottle and Battery holder fits into cup holder

I designed this to hold the flanges and bottles for my wife's spectra breast pump. Basically the cup holder for the pump is useless this turns the cup holder into a holder for the bottles and flanges. I also added a spot for the 3rd party battery. This basically makes the base model of breast pump into the portable battery powered version. I also made the flange holder removable so the flanges can be stored in the fridge without the bottles tipping over.

New to version 3:
Thickened the wall of the battery box to ease removal of supports without breaking the part.
Added second bottle holder design for Avent style bottles.

Amazon link for 3rd party battery:
https://www.amazon.com/dp/B071P6T32T?ref=ppx_pop_mob_ap_share&fbclid=IwAR39RK7UTvVh-e-NOTnlYFUz7buE0T_XRDXf9w1N5Zz1_1dT-IyEEOldlrE