Learn a paid skill you can do with your hands. Welding, painting, HVAC, long-line fishing, building PC’s, anything. Get proficient.
You may never use it again. Hopefully you develop a skill-set that pays you better/is less physically demanding/is sexier.
But you will never starve and may be able to feed your family even if your primary occupation falls out of favor.
Rechargeable is key here. Amazon has them for under $10. There’s no going back.