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14 Comments

  1. Why do people keep thinking battery operated equipment will fail in an EMP event. Unless something is connected to the grid it will be fine, until the battery loses power. Your clocks, phones, flashlights, computers, etc. will be fine unless they are plugged in being charged. Your store of batteries will be fine. Buy rechargeable batteries, have a charger, and recharge from generator(that wasn’t plugged into an outlet) or car batteries.

    1. Agreed that was the first thing that jump out to me. The battery power clocks being dead? I do think anything that has a micro-chip is questionable at this point though whether attached to the grid or not.

    2. Many delicate electronic devices will fail. Even the battery operated varieties. Not all cars will fail because of the more rugged construction of the electrical parts needed to operate them. This is why Faraday cages are important.

  2. I guess the feeling is that grid tied objects would savaged by an EMP or CME. I’m not so sure about non grid tied electronics. My weather radio has an antennae and is battery operated, wouldn’t that antennae be enough of an inlet for the pulse to fry the circuitry? I also wonder about LED bulbs and the micro circuitry in so many of our flashlights.

    1. It depends on a lot of things, like the length of conductors And coils used in the circuitry and the strength of the emp. Also wisker type diodes are vulnerable to burnout if the current flowing through them exceeds the design parameters.. especially if that current flows in reverse.

  3. I guess the feeling is that grid tied objects would savaged by an EMP or CME. I’m not so sure about non grid tied electronics. My weather radio has an antennae and is battery operated, wouldn’t that antennae be enough of an inlet for the pulse to fry the circuitry? I also wonder about LED bulbs and the micro circuitry in so many of our flashlights.

  4. As has been discussed here and elsewhere, it depends on yield and location as to effects. Comes down to kV per meter and whether circuits can handle said over-voltage. Lines concentrate the current as an antenna and unless there are breakers between you and the line, it will damage attached components. Not as bad as a direct lightning hit because that is hyper-local…there’s a very good chance that there is a fail-safe somewhere between your components plugged-in and that crispy fried power line. YMMV. Better to be safe and keep items unplugged when not in use however.

  5. In all reality, airliners and small aircraft will not fall from the sky in the event of an EMP. Only in Hollywood movies. The reality is airliners are built to withstand multiple lightning strikes and have faraday cages integrated into them per FAA regulation. Small aircraft engines may or may not fail but usually only rely on the magnetos which are independent of the aircrafts electrical system. In the event an engine in a small aircraft failed a forced landing without the engine can be done safely. The notion of aircraft falling from the sky is always over exaggerated in the event of an EMP.

  6. You’re more likely to be walking home because the security forces have ordered all cars off the streets than because of a technical reason. (There’s lots of ways this could come out — a 9/11 style series of carbombs would be more than enough reason for them to unilaterally “ground” all car trips until they can get a handle on things.)

  8. Looking forward to the next installment. I keep a bag in my vehicle in case I have to walk the 8 miles home from work some day. Or the 2,000 miles home from my summer vacation.

  9. I worked in the outdoor industry for many years. More specifically for a German brand backpack manufacturer found in numerous countries. I could not disagree more as to the quality of backpacks found at stores such as Walmart and Target. You truly do get what you pay for. If you don’t plan on the pack ever leaving your vehicle or your house then one of these cheap packs will work perfectly well. However, under heavy or extended use these cheap price-point packs are of inferior quality and will fall apart with heavier loads. Not to mention comfort of carrying the pack with a heavy load. Cheap packs are cheap for a reason

  10. Not sure where any of us might be toting that pack, but for me, it’s probably not the deep wilderness. I’ve had great luck finding quality backpacks, totes, and carry-on-type wheeled luggage at Salvation Army and Goodwill, etc. ‘Guess wealthy people toss them out. FWIW-YMMV

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