What is Reddit's opinion of HOMELYLIFE DC 24V to 12V 10A 120W Voltage Buck Converter Reducer Power Step Down Regulator Waterproof Module Transformer for Golf Cart?

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The device you're talking about is called a buck converter. They're commonly used in golf carts to run 12 volt lights, here's one that seems to sell very well on Amazon

https://www.amazon.com/Voltage-Regulator-Converter-Waterproof-Transformer/dp/B07V9D6SF2/ref=mp_s_a_1_13?crid=17LFU37RBPAEJ&keywords=voltage+converter+24+to+12&qid=1657422568&sprefix=voltage+converter+24+to+12%2Caps%2C98&sr=8-13

I made a small switch box with LED’s for my son and I used this buck converter Buck Converter to get my 18v battery to 12v for the LEDs, unfortunately I didn’t know about the low voltage cutoff you linked above and it dropped the batteries voltage down to 12vdc, is there anyway to charge it back up? The charger is telling me the battery is broken but I used a 12v trickle charger and it still works for the LEDs I just can’t get the charger to fully charge it I’m assuming because it’s reading low voltage. Any help is appreciated. Thanks

Yes, you can absolutely bury conduit.

80Amps is pretty reasonable, that said if you can easily do a 48v setup and your inverter/charge controller support it...go for it. They make decent step-down converters if you want to use 12v DC electronics as well. My battery system is 24V and I have a step down converter connected to a fusebox for some small DC electronics I run.

Something like this:

https://www.amazon.com/Voltage-Regulator-Converter-Waterproof-Transformer/dp/B07V9D6SF2/

You need to read the maximum current that the motor draws, to see if 10A (that means 120W) is sufficient, or you need something bigger.