Our pick: the Zippo 12-Hour Refillable Hand Warmer, rated for up to 12 hours on one fill of lighter fluid, with nothing to charge. Disposable: HotHands, up to 10 hours. Rechargeable: Zippo HeatBank 9s, up to 9 hours. Skiing: Ignik Ripple, small enough for a glove.
Flying? Air-activated warmers can go in either bag and rechargeables in your carry-on, but lighter-fluid warmers can’t fly at all. See the TSA and FAA rules below.
Every hours figure on this page is the maker’s best case. Our type table shows what each kind of warmer trades for its run time.
| Hand warmer | Best for | Type | Hours (maker’s “up to”) | Max temp (maker) | Weight | Price | |
|---|---|---|---|---|---|---|---|
| Zippo 12-Hour Refillable | Best overall | Catalytic (lighter fluid) | 12 | — | 2.6 oz | $$ | Check price |
| HotHands Hand Warmers | Best disposable | Air-activated | 10 | — | — | — | Check price |
| Grabber Hand Warmers | Best for emergency kits | Air-activated | 10 | 158°F (70°C) | 2.1 oz‡ | — | Check price |
| Zippo HeatBank 9s | Best rechargeable | Rechargeable, 5,200 mAh | 9 | 120°F (50°C) | 5.6 oz | $$ | Check price |
| Zippo HeatBank 6 Pro | Best for wet weather | Rechargeable, 5,200 mAh | 6 | 120°F (50°C) | 6.4 oz | $$ | Check price |
| Ignik Ripple (pair) | Best for skiing | Rechargeable | 12 at 90°F; 3 at full heat | 122°F (50°C) | 1.8 oz each | $$$ | Check price |
| HotSnapZ Pocket Warmers | Best reusable without batteries | Click gel (sodium acetate) | About 1 | 130°F (54°C) inside | About 7 oz each | $ | Check price |
Hours, temperatures and weights from each maker’s product page, October 2026, as the maker states them; “—” = not published. ‡ Grabber lists 2.08 oz without saying whether that’s one warmer or the pair. Price bands at the maker’s US list price: $ under $25 · $$ $25–60 · $$$ over $60; HotHands and Grabber sell through stores and list no price.
How we chose
We started from the 11 warmers on our earlier list. For this October 2026 update (edited by Brian Hamilton), we checked each one on its maker’s own site: that it’s still sold, and its hours, top temperature and battery in the maker’s words.
Six are off the list:
- OCOOPA’s rechargeable warmer: OCOOPA recalled 1.5 million rechargeable warmers in July 2026, and its own store now lists no products.
- Human Creations EnergyFlux and Cypers Double-Side: neither maker has a store any more. One domain now hosts unrelated content; the other is parked.
- Celestron FireCel Plus: Celestron lists it as discontinued and out of stock.
- Celestron ThermoCharge: on clearance as the last of Celestron’s Elements warmers; its siblings are discontinued.
- Celsius solid-fuel warmer: we couldn’t find a maker still selling it, or any charcoal-stick warmer from a maker we could check.
Our old Zippo card covered three HeatBanks; the 3-hour model is gone, so the 9-hour HeatBank 9s carries on. With five battery warmers off the list, we added two: Zippo’s HeatBank 6 Pro, the only waterproof-rated one we found from a maker we could check, and Ignik’s Ripple, sized for ski gloves, a gap the old list didn’t fill.
Earlier editions described most of these warmers from makers’ specs. The few things our writers did note, on HotHands, Grabber and HotSnapZ, are credited to “our earlier review”. Where a maker doesn’t publish a figure, the table shows a dash, not a guess.
Which type of hand warmer lasts longest?
On paper, an air-activated pack: HotHands rates its Super Warmers for up to 18 hours, though each lasts one use. Of the reusable kinds, the Zippo catalytic and the Ripple rechargeable both claim up to 12 hours, but the Ripple’s 12 are at 90°F. Click-gel packs last about an hour.
| Type | How it heats | Hours (our picks, maker’s “up to”) | Max temp (maker) | Reuse | Fly with it? |
|---|---|---|---|---|---|
| Air-activated disposable | Iron powder oxidizes when the pack meets air | 10 (HotHands, Grabber); 18 for HotHands Super Warmers | 158°F (70°C), Grabber; HotHands doesn’t publish | None: one use | Yes, carry-on or checked |
| Rechargeable battery | Lithium-ion battery powers a heating element | 3 to 12, by setting (Ripple); 6 (HeatBank 6 Pro); 9 (HeatBank 9s) | 120–122°F (50°C) | Recharge by USB | Carry-on; checked only powered off, and never if it’s a power bank |
| Catalytic (lighter fluid) | Fuel burns flamelessly on a catalytic burner | 12 (Zippo 12-Hour) | — (not published) | Refill with lighter fluid; burner replaced periodically | No, in either bag |
| Refillable gel (“click”) | Clicking a metal disc crystallizes sodium acetate | About 1 (HotSnapZ: 50–60 min) | 130°F (54°C) inside; 115–120°F at the surface | Boil 10–15 min, then cool | Checked bag (TSA: gel heating pads not in carry-on) |
Hours and temperatures from the makers’ product pages and FAQs, October 2026. Flying column from TSA’s “What Can I Bring?” entries and FAA PackSafe, read October 2026; see Can you fly with hand warmers?
Why “up to 10 hours” is a best case: every hours figure here is the maker’s, measured however the maker chose. The makers that publish more than one number show how wide the range is.
- Our earlier review of HotHands, rated up to 10 hours, found about 2 hours of real heat and many more lukewarm.
- Ignik’s Ripple runs up to 12 hours, but at 90°F (32°C). At its 122°F (50°C) Turbo setting it’s 3 hours.
- Ignik also says battery life “can differ greatly depending on external temperature”: a warmer left out in cold air won’t last as long as one in a pocket.
- Zippo gives its HeatBank 9s six heat settings and “up to 9 hour run time”, without saying which setting gets the 9 hours.
- Grabber’s packs average 135°F (57°C); 158°F is the peak. HotSnapZ reaches 130°F inside but typically 115–120°F at the surface.
Best refillable hand warmer
1. Zippo 12-Hour Refillable Hand Warmer: Best overall
Up to 12 hours from one fill of lighter fluid, with no battery to charge and no packet to throw away. Of the other reusable warmers here, only the Ripple claims as long, and only on its 90°F setting. You fill it from the cup in the box, up to the line and no further.
It’s catalytic. You hold a flame to the burner for about 10 seconds, and after that it heats without a flame. Zippo says it must always ride in its fabric bag to prevent overheating, and that the burner needs replacing periodically; its replacement burner is rated for about 70 uses.
Key specs: up to 12 hours · catalytic, runs on Zippo lighter fluid (not included) · 3.9 × 2.6 × 0.5 in · 0.16 lb (2.6 oz) · warming bag and filling cup included · replaceable burner · 2-year warranty · $$
Pros
- Up to 12 hours per fill
- Nothing to charge
- 2.6 oz, lighter than any HeatBank
- Replaceable burner
Cons
- FAA bans it from both bags
- Needs lighter fluid and a flame
- Overfilling risks fire, Zippo warns
- No published temperature
Skip it if: you’re flying to your hunt or ski trip, or you’d rather not handle fuel. The HeatBank 9s gives most of the hours from a USB cable. To light it in wind, see our windproof lighter picks.
Best disposable hand warmers
Both disposables come from the same company, Kobayashi, and use the same iron-powder chemistry. They’re the warmers to fly with and to leave in a car.
2. HotHands Hand Warmers: Best disposable
The default disposable. Open the pack and shake it, and the iron powder inside heats as it meets air, for up to 10 hours. Our earlier review found about 2 hours of real heat, then many more hours lukewarm.
HotHands calls them ultra-thin, and they slip inside a glove. For a longer sit, it sells Super Warmers rated up to 18 hours, one per pack.
HotHands lists the ingredients as iron powder, water, salt, activated charcoal and vermiculite, and says the used warmer goes in the household trash. It doesn’t publish a temperature, and its FAQ warns that young children, diabetics and the elderly may have reduced sensation to heat.
Key specs: up to 10 hours · air-activated, single use · 2 warmers per pack, individually sealed · iron powder, water, salt, activated charcoal, vermiculite · made in the USA from domestic and imported materials · temperature not published
Pros
- Nothing to charge or fill
- Thin enough for gloves
- Allowed in carry-on and checked bags
- 18-hour Super Warmers for long sits
Cons
- Full heat fades well before 10 hours
- One use, then trash
- No heat control or published temperature
Skip it if: you need warm hands most days of the season. A rechargeable avoids a bag of spent packets.
3. Grabber Hand Warmers: Best for emergency kits
Grabber is the disposable that publishes its numbers: up to 10 hours, an average of 135°F (57°C) and a maximum of 158°F (70°C), the highest maker-stated temperature on this page. Its spec sheet gives the full ingredient list too: iron, water, vermiculite, charcoal, polymer and salt.
Grabber lists emergency preparedness kits among its uses, along with hunting, skiing and running, and our earlier review called them “great to keep in an emergency kit or to toss in your car”. Each package holds one sealed pair and needs no charging or fuel.
That review’s tip: if you come inside while one is still warm, seal it in an airtight container to stop the reaction, and finish it on another outing.
Key specs: up to 10 hours · average 135°F (57°C), maximum 158°F (70°C) · air-activated, single use · one pair per package · 2.08 oz and 6 × 4.75 × 0.1 in as Grabber lists them · made in the USA
Pros
- Published average and peak temperatures
- Hottest maker-rated peak here
- Sealed and ready, no power needed
- Allowed in carry-on and checked bags
Cons
- One use, then trash
- No heat control
- Runs hot: keep it off bare skin
Skip it if: you already buy HotHands. Same company, same chemistry, same rated hours, so buy whichever your store stocks. Add a survival blanket to the same kit.
Best rechargeable hand warmers
All three run on lithium-ion batteries and none is under a recall we could find. Before you buy any other brand, read our recall check below.
4. Zippo HeatBank 9s: Best rechargeable
The 9-hour HeatBank from our earlier list is still Zippo’s longest-running rechargeable: up to 9 hours from a 5,200 mAh lithium-ion battery. It heats on both sides, with six settings up to 120°F (50°C), and lights that show the setting and the charge left.
Its USB port charges a phone, so it’s also a power bank, and TSA says power banks go in carry-on bags only. Zippo doesn’t say which setting gives the 9 hours, so plan on less at the top setting.
Key specs: up to 9 hours · 5,200 mAh lithium-ion · dual-sided heat, 6 settings, up to 120°F (50°C) · charges USB devices · 4.88 × 2.38 × 0.95 in · 0.35 lb (5.6 oz) · 1-year warranty · $$
Pros
- Up to 9 hours, 3 more than the 6 Pro
- Six heat settings
- Charges a phone
- Charge and heat indicators
Cons
- No water rating published
- Pocket-sized, not glove-sized
- Tops out at 120°F (50°C)
Skip it if: it will see rain, wet snow or a drop onto ice. The 6 Pro is rated IP57.
5. Zippo HeatBank 6 Pro: Best for wet weather
New in this update. We haven’t used this one ourselves; it’s here on its maker’s specs.
Zippo’s rugged HeatBank is rated IP57, dustproof and waterproof, with bumpers Zippo says handle drops of up to 5 feet. The only other water rating here is the Ripple’s IPX4, which Ignik says isn’t watertight, so this is the one for wet snow, rain or an ice-fishing hole.
It heats all the way around (Zippo calls it 360°) on three settings up to 120°F (50°C), and runs up to 6 hours on a 5,200 mAh battery. It also charges a phone and adds a 24-lumen flashlight for the walk to the stand.
Key specs: up to 6 hours · 5,200 mAh lithium-ion · 360° heat, 3 settings, up to 120°F (50°C) · IP57 dust and waterproof · drops to 5 ft · 24-lumen LED · charges USB devices · 4.62 × 2.17 × 1.10 in · 6.43 oz · 1-year warranty · $$
Pros
- Only warmer here rated waterproof
- Built-in flashlight
- Charges a phone
- Bumpers for drops
Cons
- 3 hours shorter than the 9s, on the same battery size
- Heavier than the 9s
- New to us
Skip it if: your hands stay dry. The 9s runs longer for a little more money.
6. Ignik Ripple Rechargeable Hand Warmers: Best for skiing
New in this update. We haven’t used this one ourselves; it’s here on its maker’s specs.
Ignik designed the Ripple for skiing and snowboarding. Each warmer is 2.8 × 1.4 inches and 1.8 oz, small enough to ride inside a glove. They’re sold in packs of two, four or six, and a splitter cable charges two at once.
They also show how far apart a rechargeable’s two numbers can be. Turbo Mode reaches 122°F (50°C) for about 3 hours; Eco Mode runs up to 12 hours, but at 90°F (32°C). Ignik’s tip: keep them in a glove or pocket, because left in open cold air they won’t last nearly as long.
They’re UL certified to the UL 499 heater standard and rated IPX4, fine for snow and sweat but not for dunking. Ignik lists them as carry-on compliant at 22 Wh, under the 100 Wh limit.
Key specs: Turbo 122°F (50°C), about 3 hours · Eco 90°F (32°C), up to 12 hours · 2.8 × 1.4 × 0.5 in · 1.8 oz (52 g) each · IPX4 · UL 499 certified · about 5 hours to charge · no power-bank feature listed · 2-year warranty · $$$ (pair)
Pros
- Fits inside a glove
- One cable charges the pair
- UL certified
- Lightest rechargeable here
Cons
- Only 3 hours at full heat
- Won’t charge a phone
- Priciest pick
Skip it if: you want full heat all day. A disposable pair lasts up to 10 hours, and the Zippo 12.
Best reusable hand warmer without batteries
7. HotSnapZ Reusable Pocket Warmers: Best reusable without batteries
Click the metal disc inside and a wave of crystals spreads through the liquid, heating the pack as it goes; our earlier review called watching it “honestly really fun”. Afterward, boil it for 10 to 15 minutes and let it cool, and it’s ready again, with no battery, fuel or trash.
The catch is time: HotSnapZ rates its pocket warmers at about 50 to 60 minutes, and its smaller hand warmers at 30 to 40. The inside peaks at 128–130°F, typically 115–120°F at the surface, which makes them a quick hit at a bus stop or a tailgate, not an all-day heater.
Key specs: about 50–60 minutes per use · up to 130°F (54°C) inside, 115–120°F at the surface · water and sodium acetate · 3 × 5 in, about 7 oz each · reset by boiling 10–15 min · 4 per pack · lifetime warranty · $
Pros
- Reusable with no power or fuel
- Heat in seconds
- Non-toxic contents, per HotSnapZ
- Lifetime warranty
Cons
- About an hour per use
- Needs a pot of boiling water to reset
- Heaviest pick, about 7 oz each
- TSA keeps gel heating pads out of carry-on
Skip it if: you need heat for more than an hour. Take HotHands.
Are rechargeable hand warmers safe?
We found no recall for the three on our list, but check any rechargeable you own against two 2026 recalls. Both involve lithium-ion batteries that can overheat and ignite.
| Recall | Models | Units | Reported | Sold |
|---|---|---|---|---|
| OCOOPA Rechargeable Hand Warmers, 30 July 2026 (CPSC 26-659) | UT3053, UT3056, ZLS-118, ZLS-118S, ZLS-118D, H01, H01(PD) | About 1.5 million | 1,480 overheating reports, 15 fires, 350 burn injuries, one death | Amazon, Walmart.com and OCOOPA’s sites, Sept 2018 to May 2026 |
| HotHands Rechargeable Hand Warmers, 1 Oct 2026 (CPSC 27-011) | H163650 | About 77,000 | None | Bass Pro Shops, Meijer, Target, The Home Depot and Amazon, July 2025 to Aug 2026 |
Source: CPSC recall notices, read October 2026. The HotHands recall covers only the rechargeable model, not HotHands air-activated warmers.
Both makers print the model number on the underside. If yours is listed, stop using it and claim the refund through the maker. CPSC says not to put a recalled battery in the trash, curbside recycling or a store’s battery box; call your local household hazardous waste center first.
The OCOOPA models are the two-piece magnetic kind, and OCOOPA’s own store lists no products as of October 2026. Four of the five top-ranking hand warmer guides we read still recommend OCOOPA warmers; all four were last updated before the recall.
Don’t take a recalled warmer on a trip, either. The FAA says recalled batteries and battery-powered devices “must not be carried aboard an aircraft”, in carry-on or checked bags.
Can you fly with hand warmers?
Air-activated ones, yes, in either bag, and rechargeables in your carry-on. Lighter-fluid warmers and their fuel can’t fly at all. Here’s each type in TSA’s and the FAA’s own words:
| Item | Carry-on | Checked | The rule |
|---|---|---|---|
| Air-activated warmers (HotHands, Grabber) | Yes | Yes | FAA: these “are not regulated as hazardous materials for transportation and may be carried in carry-on or checked baggage”, no quantity limit (PackSafe). TSA Hand Warmers: Yes, Yes |
| Rechargeable warmer that charges a phone (HeatBank 9s, 6 Pro) | Yes | No | TSA: power banks with a lithium-ion battery “must be packed in carry-on bags” (Power Banks) |
| Other rechargeable warmers (Ripple) | Yes | Only powered off | FAA: battery devices “can only be checked when powered off and protected from short circuit and unintentional activation” (Batteries) |
| Any lithium-ion battery | Up to 100 Wh each | TSA: rechargeable batteries “are limited to a rating of 100 watt hours (Wh) per battery” (Lithium batteries) | |
| Catalytic warmer (Zippo 12-Hour) | No | No | FAA: “Hand warming devices using flammable liquids or gases are forbidden in carry-on and checked baggage” (PackSafe) |
| Lighter fluid | No | No | TSA Lighter (Fluid): No, No |
| Click-gel heat pack (HotSnapZ) | No | Yes | TSA Heating Pad (Gel): No, Yes |
Sources: TSA “What Can I Bring?” item pages and FAA PackSafe pages, read October 2026. Every TSA entry adds that the final decision rests with the TSA officer. These are US rules; airlines and other countries can be stricter.
TSA’s own “Hand Warmers” entry says Yes for both bags but doesn’t say which kind. The FAA’s PackSafe list is the one that splits them, and it bans any warmer that runs on flammable liquid or gas. It also bans equipment holding “residual fuel or fuel vapors”, so an emptied Zippo warmer is still a poor bet.
TSA doesn’t list click-gel warmers by name, so we’ve used its “Heating Pad (Gel)” entry as the closest match. A HotSnapZ pocket warmer, at about 7 oz, is also bigger than the 3.4-ounce containers TSA allows for gels in carry-on, so pack it in your checked bag.
Did you know? By the FAA’s method (mAh ÷ 1,000 × volts), a 5,200 mAh HeatBank comes to 26 Wh even counted at the 5 volts of a USB port, about a quarter of the 100 Wh limit. It’s the power-bank rule, not the battery size, that keeps it out of checked bags.
Which hand warmer is best for hunting or skiing?
Match the warmer to how long you’ll be out, how wet it gets and whether you’re flying there.
| You’re… | Take | Why |
|---|---|---|
| Sitting in a deer stand or blind all day | Zippo 12-Hour, with HotHands Super Warmers as backup | Up to 12 hours per fill; 18-hour disposables for the long sit |
| Hunting in rain or wet snow, or ice fishing | Zippo HeatBank 6 Pro | The only IP57-rated warmer here, plus a flashlight |
| Skiing or snowboarding | Ignik Ripple, or HotHands inside your gloves | Both fit in a glove; Ripple is IPX4 |
| Flying to the hunt or the mountain | HotHands or Grabber; a HeatBank in your carry-on | Catalytic warmers and lighter fluid can’t fly |
| Spending long days out with a phone to keep charged | Zippo HeatBank 9s | Up to 9 hours, and it charges a phone |
| Packing an emergency kit or a glovebox | Grabber | Sealed until opened; nothing to charge or fuel |
| Waiting at a tailgate, bus stop or trailhead | HotSnapZ | Heat in seconds, reusable, about an hour |
Our matching, from the makers’ specs above, October 2026.
How do you use a hand warmer safely?
Keep warmers off bare skin. HotHands’ FAQ explains why: some people, especially young children, diabetics and the elderly, may have reduced sensation to heat. Keep the Zippo in its fabric bag, as Zippo requires, and fill only to the line: Zippo says overfilling risks injury and fire, and a flame when you light it means it’s overfilled.
Our earlier guide’s advice on catalytic warmers stands, too: keep them away from children, and never keep one going while you sleep.
Stop using any rechargeable that swells or overheats. On a plane, the FAA says to tell the flight crew at once if a battery device starts “overheating, expanding, smoking, or burning”.
Do you need a hand warmer at all?
Not always. A hand warmer helps hands that are cold while the rest of you is warm. If your core is cold too, a warmer layer or a heated vest does more, and heated gloves warm your fingers, not just your palms.
For cold feet, see our heated socks and heated insoles. Spending nights out? Our guide to camping in winter covers the rest of the kit.
Are the HotHands Hand Warmers reusable?
No, they’re disposable, but great for short hikes.