"Hat" for 100amp Hour LifePo Battery

After purchasing my LifePo battery I quickly realized It needed more. First, the ability to accidently reverse polarity was too damn high, so I wanted to resolve that. The back panel has a spot for a switch, a fuse, and Xt60 for charging the battery.
 

The top has a spot for a voltage meter and 2 fans (30x30mm) to keep the electronics cool.
There are two versions of the front.

V1 one is entirely XT60 based and relied on a few buck converters to stabilize the voltage at 5 volts and 12 volts.

I wanted to add USB to this so I could use it to charge phones, etc. So, I created V2 of the front cover which has 2 XT60s running VBAT and 4 USB ports.

V3 (in design) involves custom electronics. My buddy and I are working on a way to set this up as a power supply where 1 of the XT60s will have an adjustable output (controllable output voltage and current) so we can power/charge a variety of things ranging from one wheels and scooters to overhead camping lights.

I print this out of PETG, but I print nearly everything out of PETG. Supports are NOT needed.