Yep lol you are spot on but I have as many of the other avenues covered as I can. Food, water, medical supplies etc. Having energy can make a life or death difference and also lessens cyber shock on those who suddenly no longer have access to the amenities they have always known.In case of WW3 you get many other problems as energy from a battery ?
Still it can all be gone in a moment and likely will be but for the family I have to try my best to cover them as I go fight. 1% chance for them is better than 0%.