Seventeen Days Without Power Near Asheville. One Day’s Plan Included Sitting Outside A Library To Email Their Parents. Here Is One Way To Keep A Phone Alive Long Enough To Send That Message.

If someone you love is somewhere other than your house when the power goes out, read this before the next storm. Below: what one prepared household wrote down, the federal count of how long the towers stayed down, and what an iPhone 14 or later can still do with no tower.

That is how someone living just outside Asheville described the aftermath of Hurricane Helene, in a post on r/preppers. Then they gave three examples, word for word:

“Today we’re going out to look for water refills...”

“Today we’re getting groceries and ice....”

“Today we’re going to go check on Julie and then go sit outside the library where they say there’s wifi signal so we can email our parents and let them know we’re OK.”

The writer calls their preps “medium level”. They garden, hunt for game meat, and can meals and vegetables. They had a couple of chest freezers, a few shelves of canned food and dry beans, a packed go-bag, wilderness first aid training and water filtration gear. They kept the freezers closed and had a temperature probe. The freezers took about three or four days to go from five below zero to thirty-two degrees.

The power went out on a Wednesday night. It came back on seventeen days later.

“Cell service was gone for almost that long, which I think no one predicted.”

The writer had no battery-powered radio before the event, so for the daily briefing they sat in the car. A generator came after about a week, when the food began to spoil.

Seventeen days, in one household.

A charged power bank works on day one. The question is day four.

The federal count of the towers is next.

Nobody plans for the real number

The government’s own checklist, on Ready.gov, says you “may need to survive on your own for several days.” The household above needed seventeen.

Here is the FCC’s own count from the last time a large piece of America lost its grid.

On 28 September 2024, thirty-four hours after Hurricane Helene came ashore, 1,079 of the 1,452 cell sites in the twenty-one western North Carolina counties the FCC was tracking were out of service. Seventy-four percent.

Ten days after landfall it was still 16.9%. Nineteen days after landfall, the FCC’s daily report still listed 17.8% of Buncombe County’s sites out and 40.9% of Yancey County’s.

Another writer, five days into a different blackout, listed their mistakes. Number two:

So when towers go down, they can stay down for weeks. Here is something that changes what “no towers” actually means.

Why the phone is worth keeping alive at all

One thing worth knowing about the phone you already own.

An iPhone 14 or later on iOS 18 sends and receives ordinary texts, to ordinary contacts, over iMessage and SMS, with no cell tower involved at all. Apple calls it Messages via satellite. It shipped on 16 September 2024, ten days before Helene made landfall.

The limits are strict and worth having straight. You have to be outside with a clear view of the sky and the horizon. It is a text, not a call, to one person. In ideal conditions a message might take thirty seconds; under light foliage, over a minute; under heavy cover, not at all. It is free for two years from the day the phone was activated. The iMessage half works on any carrier, the SMS half depends on yours. It works in the United States, Canada, Mexico and Japan.

Apple’s own footnote says it should not be used in emergencies, and points you to Emergency SOS via satellite instead. That is not a contradiction. There are two features on the same phone. One texts emergency services, one texts your wife. Both need open sky, and both need a phone that is still on.

Which is the point. The hard part is already in your pocket. The part that runs out is the battery.

Why the obvious fixes run out

Both writers above reached for a generator. The Asheville writer waited about a week, until the food began to spoil, then ran it “a few hours at a time twice a day to cool the fridge and recharge phones and headlamp batteries.” The day-five writer bought theirs in the middle of the outage, from a Home Depot that got an emergency shipment, and settled for “whatever brand was available that I could physically move in and out of my small hatchback.”

That works at home. It does not come with you. One writer in California, after almost four days without power, found it most important that they could take their phones and a charger with them when they left the house: “We couldn’t take our generator with us.”

A power bank goes anywhere. The worry is how long it lasts. One writer, in a 24-hour drill with cell signal still up, wrote: “I tried not to use my phone. I became hyper-aware of battery life drain. I have a portable [...] power bank but that would be depleted fast.”

The wall socket refills a power bank in a few hours, and it is the one thing an outage takes away.

So here is what the panel actually does, with the real number

This is where everybody in this category lies, so we are going to do the opposite and give you the arithmetic to check.

The panel on the face of this thing is rated 1.15 watts. That is not a typo and it is not marketing. It is off the unit’s own label: 5 volts, 0.23 amps.

One hour in real, direct, overhead sun puts back roughly five percent of an ordinary phone.

Five. Percent.

If you came here expecting to read that the sun refills it, that is the number that should tell you otherwise. Nobody selling one of these prints that number. We just did.

Buyers in this category have already worked this out and they are not gentle about it:

The reviewer is right. If you are buying any of these as a charger that runs on sunlight, do not buy it. You will be disappointed on exactly the schedule they describe, and you will be right to be.

Stop thinking of it as a charger

Stop thinking of the panel as a way of filling the battery. It is not one, and it never will be.

Think of it as the thing that stops the number reaching zero.

Everybody’s power bank is at zero by day three. Yours is at zero by day three as well. The difference is what happens on day four.

Every other power bank on that street stays at zero for the next sixteen days. Yours goes out on the windowsill, or clipped to a bag, and comes back that evening with fifteen or twenty percent of a phone in it. Lying flat it will not catch the sun square, so call it three or four useful hours out of a clear day rather than eight.

That is not a charge. You are not watching Netflix. What it is:

Under one woman’s post on X about the parents she could not reach, other commenters offered hope and said that they had begun getting texts from their loved ones after hours of no communication (FOX TV Digital Team, 29 September 2024).

The honest limits, because you are going to think of them anyway

Three other things the reviews complain about, and what this one’s label says

Go and read the one-star reviews on any power bank in this category. Past the solar, the same three complaints come up over and over. All three are checkable before you buy anything, on this or on whatever else you are looking at.

“It lies about the mAh.” About one in seven of the bad reviews say some version of this. Ten thousand milliamp hours at three point seven volts is thirty-seven watt hours, and thirty-seven watt hours is what the cell holds. The advertised number and the real number are the same one. Roughly two full charges of an ordinary phone, which is the figure worth checking against whatever else you are looking at.

“It swelled up.” Or got hot, or melted. This one is tested to UN38.3 and UL 2056, and the label carries PSE, CE, FCC and RoHS. That is the dull part and it is the part we would defend hardest, because one of these is going to sit in a hot car for two years. It is also the thing almost nobody in this category bothers to tell you, so it is worth asking about anything you buy.

“It says waterproof and it is not.” This one says IPX4, which is a number rather than a word: rain and spills fine, submersion no. Worth knowing that the manufacturer’s own Amazon listing claims IPX5 while its own manual says IPX4. The lower figure is the true one.

What it is

Thirty-seven watt hours, nine point six ounces, and it goes in a coat pocket. Charges three things at once over USB-C, USB-A and the pad on the back. A dual LED torch with SOS and strobe in one end, and a compass carabiner in the box.

And a 1.15 watt panel on the face that will not fill it, and is not there to.

So

If the power in your area has never been off for longer than a day, buy the cheapest brick you can find. It will do everything you need.

If you have sat through three days of it, you already know what happens on day four. You are not buying five percent an hour because the number is impressive. You are buying the version of day four where your phone still turns on, and the one message that matters still goes out.

Ninety days from the day it arrives to ask for a return. Email before you send anything back.