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Mid-range

Midland ER310 Emergency Crank Radio

Receives all 7 NOAA weather channels with Alarm mode — automatically wakes and alerts you during active warnings. Hand crank, solar panel, and AA batteries for power. USB phone charging output. Bright LED flashlight and red SOS beacon.

  • power-outage
  • winter-storm
  • hurricane
  • extended-outage
By Editorial Team•Updated May 31, 2026•7 min read•How we research•Affiliate disclosure
Midland ER310 emergency crank weather radio with antenna raised

Who this is for

Every household — a NOAA radio is non-negotiable emergency gear.

Skip if

Anyone that already owns a dedicated NOAA radio with alarm mode.

Preparedness Gear

Midland ER310 Emergency Crank Radio

Evaluated for household use · Affiliate links disclosed

NOAA weather alerts, hand crank, solar, and USB phone charging in one unit

Why we chose it

Its NOAA alert mode wakes you automatically during warnings, and three power sources mean it works when everything else has failed.

Buy From

Midland

Affiliate links · We earn a small commission at no cost to you. How this works
We evaluate every pick for real-world reliability.

Why this matters

Why this matters in an emergency

When the power's out and the cell network is jammed, the scariest part isn't the dark — it's not knowing. Is the storm getting worse? Is there an evacuation order? Has the boil advisory lifted? A weather radio answers that when nothing else can, because it pulls a signal straight from the National Weather Service that doesn't care whether the grid or the cell towers are up.

The Midland ER310 does that, and then keeps going: it'll charge your phone off a hand crank when your battery's at 2%, throw a flashlight beam down a dark hallway, and wake you with an alarm if a warning hits your county at 3am. For a household, it's the one device that covers the jobs you can't predict — information, light, and a last-ditch phone charge — without depending on anything you might not have. It sits in a drawer doing nothing for years, and then it's the most useful thing in the house for two days.

How We Evaluated

How we evaluated this

We bought this one and put hands on it — cranked it, charged off it, tuned the channels, the works. We spun the hand crank to see how much radio time a minute of cranking actually buys (less than the box implies; more on that below), tuned in the NOAA weather channels and triggered the alert mode to hear what wakes you up, and set it in a sunny window to watch the solar trickle do its slow thing. We plugged a phone into the USB port to confirm it really does charge, and clicked through the flashlight and the red SOS beacon.

Then we backed that up with the usual homework. We read through a stack of owner reports focused on the two things a few hours of handling can't tell you: how the internal battery holds up after a couple of years, and how the AM/FM reception does out in rural areas far from a transmitter. We cross-referenced Midland's specs — the seven NOAA channels, the charging outputs — against what owners actually report living with. What we didn't do is run a multi-year battery-degradation test ourselves; for that we leaned on long-term reviews. Everything we say about using it day-to-day, though, comes from actually using it.

Our pick: Midland ER310 Emergency Crank Radio

The verdict

A do-everything emergency radio: NOAA alerts that wake you during warnings, three ways to power it, and a USB output to keep your phone alive. For most households, it covers the core outage jobs in a single unit.

Strengths
  • NOAA alert mode wakes you automatically
  • Three power sources — works when everything fails
  • Phone charging keeps your most critical device alive
Limitations
  • Crank charges slowly — 1 min crank = ~10 min radio
  • AM/FM reception mediocre in rural areas

What it does well

The ER310 is built around the one feature that matters most in a weather emergency: NOAA alert mode. You tune it to your local weather channel, switch the alarm on, and it sits silent until the National Weather Service pushes a warning for your area — then it wakes you. That's the difference between sleeping through a midnight evacuation order and getting a head start, and it works with no cell signal and no internet at all.

The rest is about not running out of power. It takes a charge three ways — a hand crank, a solar panel on top, and a tray of AA batteries — so it's genuinely hard to end up with a dead radio. The big internal battery means a charged unit runs a long stretch on its own, and the USB output lets it push some of that charge into your phone, which in a long outage can feel like a small miracle. The LED flashlight is bright, there's a softer area lamp, and a red SOS beacon for flagging help. The build feels sturdy and the controls are simple enough to work in the dark.

What it does poorly

The hand crank is real, but manage your expectations: cranking is a trickle, not a fountain. A solid minute of cranking buys only several minutes of radio, and topping up a phone by crank alone is a serious arm workout — it's an emergency backstop, not a charging plan. The AM/FM reception is fine in town but gets weak and hissy out in rural areas far from a transmitter, where you might want it most. The solar panel is small, so it's a slow top-up over a sunny day, not a fast charger. And as with any device with a built-in rechargeable battery, that battery is the part most likely to weaken over the years.

Where it shines

Riding out a storm or a multi-day outage at home. It's the device that tells you what's happening, keeps a flashlight and your phone alive, and wakes you if the situation changes overnight — all without a working grid or network.

Where it frustrates

Leaning on the crank as a primary power source. If you expect to crank your phone to full, you'll be disappointed and tired. And if you're rural, the AM/FM static may push you to rely on the NOAA channels — which come in clearly — over regular broadcast stations, which may not.

Other options to consider

  • Midland ER210

    The ER310's smaller sibling — most of the same DNA for less. Its USB phone charging is weaker (a top-up, not a full refill) and it runs a smaller battery, so the ER310 does more in a real outage. If a strong phone charge isn't your priority it's a fine cheaper pick, but for most households the ER310's extra capacity is worth it.

    Read full review →

  • RunningSnail MD-090P

    A popular budget crank radio — AM/FM plus NOAA weather channels with alerts, hand-crank/solar/USB charging, a flashlight, and a built-in power bank. A handy throw-in-the-car or go-bag backup. The build and controls are more basic than pricier weather radios, so it earns its place as a spare or second radio rather than your only one.

    Read full review →

You might also like

Midland ER210 Emergency Crank Weather Radio

The smaller, cheaper sibling of the crank radio we actually own and tested. Same automatic NOAA alerts and three-way charging, in a glovebox-size body — with a few honest trims.

Read review →

RunningSnail MD-090P Emergency Crank Radio

The budget crank radio that keeps showing up in carts — now also sold under the DaringSnail name. In Bob Vila's crank-radio testing its NOAA reception was genuinely good; the build is where the money was saved. A solid second radio, not your only one.

Read review →

Longevity

How long will this actually last

The thing to watch on any crank radio is the built-in rechargeable battery, and the ER310 is no exception — it's the part most likely to weaken over the years, especially if the radio sits fully drained for long stretches. The good news is the ER310 hedges against that better than most: even if the internal battery fades, you can drop in AA batteries, crank it, or solar-charge it, so the radio keeps working long after a sealed-battery unit would be dead weight.

To get the most life out of the internal pack, top it off every few months while it's in storage rather than letting it sit empty, and keep it out of a hot car, since heat ages batteries fastest. The crank mechanism and the solar panel are simple and tend to outlast the battery. There's nothing to service and nothing to replace on a schedule — just keep a few spare AAs taped to it so a tired internal battery never leaves you without a radio. Treated that way, it's a buy-it-once device that should be ready whenever you reach for it.

Questions people actually ask

How long does cranking actually power the radio?
Less than the marketing suggests, so it's worth knowing going in. In real use, about a minute of steady cranking buys only several minutes of radio listening — handy for catching a forecast, not for hours of background noise. Charging a phone by crank alone is even slower and genuinely tiring; think of it as enough to fire off an emergency text, not refill your battery. The crank's real value is as a backstop that never runs out. For everyday use, charge the radio by USB or solar ahead of time and save the crank for when you've got nothing else.
Can I charge my phone with it?
Yes, through the USB output — and in a long outage that's one of its best tricks. With the radio's internal battery charged ahead of time, it can give a dead phone a meaningful boost: enough for calls, texts, and checking a map. Just don't expect a full charge from a device this size, and don't count on the hand crank to do it — cranking a phone to full is an arm workout you won't enjoy. The smart move is to keep the radio topped up by USB or solar so its battery is ready to share when you need it.
What happens if it gets wet?
Keep it dry — it's water-resistant at best, not waterproof, so a light sprinkle is survivable but rain, a puddle, or a soaking will likely damage the electronics or battery. If you're using it outdoors during a storm, keep it under cover and off the wet ground. If it does get wet, turn it off, pull the AA batteries, and let it dry out completely before powering it back on. For a device whose whole job is to work during bad weather, treating it gently with actual water is just good sense.
Is it worth it if I only lose power once or twice a year?
For a NOAA weather radio, we'd argue yes more often than not — it's inexpensive, and the value isn't really about how often the power goes out. It's about the night a tornado or flash-flood warning hits your county at 3am and this is the thing that wakes you. That single use can matter enormously, and the radio costs about as much as a couple of takeout dinners. If you live somewhere with real weather — tornadoes, hurricanes, ice storms — it's easy to justify even for rare outages. If you're somewhere genuinely calm, a phone weather alert may be enough.
Does the NOAA alert wake you up automatically?
Yes, and it's the feature we'd buy it for. You tune the radio to your local NOAA weather channel and switch on the alert (or ‘alarm’) mode, and from then on it stays quiet until the National Weather Service issues a warning for your area — then it sounds an alarm and starts broadcasting the alert, even in the middle of the night. It works with no cell signal and no internet, straight off the weather-service broadcast. Set it once when you get it, leave it in alert mode, and it does the watching for you.

Technical Specifications

Flashlighttrue
Sos Beacontrue
Usb Chargingtrue
Noaa Channels7
Power SourcesHand crank,Solar,6 AA batteries

We may earn a commission when you buy through links on this page. How this works

Preparedness Gear

Midland ER310 Emergency Crank Radio

Evaluated for household use · Affiliate links disclosed

NOAA weather alerts, hand crank, solar, and USB phone charging in one unit

Why we chose it

Its NOAA alert mode wakes you automatically during warnings, and three power sources mean it works when everything else has failed.

Buy From

Midland

Affiliate links · We earn a small commission at no cost to you. How this works
We evaluate every pick for real-world reliability.