Does anyone have a good idea how to get the 12V for headlights or similar things? Does a 36V stepDown module works on 42V full charged battery? Who got experience with that?
I think Hobbyking might have what you’re looking for.
I have some lights on my board powered form the 10s battery.
I have such a step down converter with red pcb. Those with red pcb are better… https://www.ebay.com/p/Dc-dc-5v-12v-24v-48v-Buck-Adjustable-Step-Down-Voltage-Converter-Module-Car-COI/22018628241
If you don’t mind that it’s and additional device I can recommend this Schau, was ich auf AliExpress gefunden https://s.click.aliexpress.com/e/bh3seEme has a 5V and 12V output and work with 6x 18650s
Just search for exactly what you just said on eBay
SMAKN LM2576HV Dc-dc Adjustable Power Supply Step-down Module Input 5-60v to Output 1.25-30v https://www.amazon.com/dp/B00ECQOYOQ/
This is the same that @thisguyhere posted (I think) but a little bit cheaper
I had the last couple listed above for.my.10s and worked great…