Perfect!!! I decided to use that!

Can you let me know if you see any problems with this list?? Anything I can improve?? Anything I don't need??

Frame, PDB, FC, Motors, ESCs

Extra XT60 Battery Connectors

Props

Standoffs

2mm Gold Bullet Connector

Cable/Zip Ties

DIY FPV Kit

Tx/Rx

Tx/Rx to USB Adapter

Drone Battery 1 (heavy) 2200mAh

Drone Battery 2 (light) 1800mAh

FPV battery 1500mAh

What's the cheapest way to be able to get voltage to show on my FPV setup?

-Would I be able to use this voltage checker/warning buzzer?

What about a cheap lost model buzzer/discovery buzzer?? Can I use a switch on my Tx to make the alarm sound??

Is it overkill to get 3 batteries total?? 2 for the drone (So I can keep flying when one is charging) and 1 for the FPV reciever/display?

Thanks for the help!!