Rechargeable Hand Warmers: Recall Check and Runtime Chart

Rechargeable hand warmers from three brands were recalled for fire risk in 2026; check the model number on the underside before use.

Originally published: November 1, 2026

Rechargeable hand warmers are pocket heaters that run on a built-in lithium-ion battery, and many of them double as a phone charger. That battery is the whole story. In 2026 the CPSC announced three recalls of rechargeable hand warmers for fire and burn hazards, the biggest covering about 1.5 million OCOOPA units and one death, so the first job is checking the model number printed on the underside of yours. If it matches, stop using it, and do not toss it in the trash or a store battery bin. The second job, for anyone buying, is reading the runtime and battery numbers each maker publishes, so you can match the warmer to the cold you sit in.

Rechargeable Hand Warmer Recall Check

Find the number on the bottom of your warmer, then its row. All three notices are on the CPSC website, and each maker runs its own claim page.

Every row is from the CPSC notice for that recall, read October 18, 2026, and checked against the maker’s recall page. OCOOPA sold online at Amazon.com, Ocoopa.com, Ocoopa.net and Walmart.com, and its recall page labels UT3053 and UT3056 as the UT3 Lite and UT4 Young. “Sold” dates and prices are as CPSC prints them. A model number not on this table is not covered by these three recalls, but check the CPSC site before you trust any warmer you cannot identify..

Where the Model Number Hides

On all three recalls the model number is printed on the underside of the warmer, not just on the box (so a lost box does not leave you guessing).

Here is the wrinkle that matters. Model UT3053 shows up twice, once under the OCOOPA name and once under Gobi Heat. Gobi Heat’s recall page lists OCOOPA Innovation Corp. as the importer and manufacturer, but the CPSC handled them as separate recalls, so claim with the brand printed on top.

HotHands buyers, take note: only the electric rechargeable warmer with the white HotHands logo is covered. The HotHands recall page says the recall “does not involve any HotHands Air-activated hand warmers,” so the little shake-and-open packets in your blind bag are not part of it.

What to Do With a Recalled Hand Warmer

The steps differ by maker:

• Stop using it. The remedy in every notice starts with “Consumers should stop using the recalled hand warmers immediately.”
• OCOOPA: write “RECALLED” on the warmer in permanent marker and send a photo showing that marking, the model number and the three-digit batch number through the OCOOPA recall page. The refund comes as an OCOOPA gift card or to your original form of payment.
• Gobi Heat: write “RECALLED” on each warmer in permanent marker, photograph the marking and the model number, then sign into the GOBI customer portal and pick “Warranty claim,” per Gobi Heat’s recall page (the CPSC notice describes getting a claim number and emailing the photo to Gobi Heat). You choose a full refund or store credit worth the refund plus 20%.
• HotHands: get a claim number first, write “Recalled” and the claim number on the warmer, and photograph the marking, the model number and the four-digit batch number. The remedy is a full refund.

Then comes disposal, and this is where people get it wrong. CPSC says not to throw these batteries “in the trash, the general recycling stream,” or in the used-battery boxes at retail and home improvement stores. Call your municipal household hazardous waste center first and ask whether it accepts defective lithium-ion batteries; if it does not, your municipality tells you what to do next. OCOOPA’s own page adds one more step: do not dispose of the warmer until your recall request has been reviewed.

Rechargeable Hand Warmers With No Recall Found

Shopping? These five are in stock at the maker, none turned up in the CPSC recall database, and every number is the maker’s own.

Hours are each maker’s stated maximum; only ORORO lists hours for each heat setting. “No recall found” means a search of the CPSC recall database for “hand warmer” products and the maker’s name returned no recall for that warmer. Prices change, so check the maker before you buy.

Which Rechargeable Hand Warmer Fits You?

ORORO Bay City 2.0: For the All-Day Sit

The Bay City 2.0 is not a pocket puck. It is a fleece-lined hand muff on a quick-release waist belt with three carbon-fiber heating zones, and ORORO rates it at 5 hours on high, 9 on medium and 14 on low from a 4,800 mAh, 7.4-volt battery. That is the one I would hand a treestand hunter who sits from dark to dark. It also costs a hundred dollars more than anything else here.

Zippo HeatBank 9s: The Longest-Running Pocket Unit Here

The HeatBank 9s carries a 5,200 mAh battery, heats both sides to an operating temperature up to 120°F, and Zippo rates it at up to 9 hours. Its six settings are three for both sides and three for one side, per Zippo’s HeatBank 9s product guide. My favorite detail is boring: a five-second press turns it on or off, which Zippo says keeps it from switching on in a pocket.

Zippo HeatBank 6 Pro: For Rain, Snow and Drops

The HeatBank 6 Pro trades three hours of rated runtime for toughness: an IP57 dust and water rating, bumpers Zippo rates for drops up to 5 feet, and a 24-lumen LED light. It runs up to 6 hours on a 5,200 mAh battery and weighs 6.43 ounces. For a duck blind, this is the Zippo I would pick.

Zippo HeatBank 6 and Celestron ThermoCharge: The Cheap Seats

The HeatBank 6 is $34.95 for 4,400 mAh and up to 6 hours. Celestron’s Elements ThermoCharge posts the same 4,400 mAh and up to 6 hours, with a 113°F maximum, and Celestron has it marked down to $19.98 on clearance. Want the lowest price of these five? That is the one, while the clearance stock lasts.

Why “Up To” Hours Run Short

Every runtime in that table is a ceiling. Heat is current running through a resistor, so the hotter the setting, the faster the drain. ORORO is the one maker here that shows its work: 14 hours on low falls to 5 on high, about a third of the time.

Zippo and Celestron publish a single figure, so plan on less from the high setting. Zippo says its HeatBank 9s shuts off its heat while it is charging your phone, and again while the warmer itself is on the charger, and Zippo lists a recharge time of 3.45 hours.

Are Rechargeable Hand Warmers Safe?

A working one that is not on a recall list is a battery pack with a heater, so treat it like any lithium gear in your pocket: use the cable it came with, and stop using any unit that swells, smells or runs hotter than its setting should.

The recall numbers show why that matters. On the OCOOPA recall alone, the company reported 1,480 overheating reports, 15 fires and 350 burn injuries, “including the death of an 83-year-old consumer in San José, California in February 2026,” per the CPSC notice. Gobi Heat and Kobayashi (the HotHands company) reported no injuries and recalled anyway. Our EDC flashlight battery guide covers how to store and protect the other lithium cells you carry.

A spare warmer also belongs in the truck kit. Our car emergency kit checklist already calls for blankets “for protection from the cold,” and a charged warmer with a phone port earns its spot next to them, as long as it is not on the table above. Buying for a hunter? Our gifts for hunters guide has the knives, lights and tools to go with it.

Can You Fly With a Rechargeable Hand Warmer?

Federal hazmat rules for passengers (49 CFR 175.10(a)(18), lithium batteries in baggage) let a portable electronic device ride in carry-on or checked bags, but a checked one “must be completely switched off” and “protected to prevent unintentional activation or damage,” and a device with a lithium-ion battery over 100 Wh (up to 160 Wh) needs the airline’s approval. The same rule says an article whose primary purpose is to power another device counts as a spare battery, and spare lithium batteries ride in carry-on only.

So which is a warmer that also charges your phone? I would not argue that at the gate. Carry it on; our TSA rules for EDC gear page covers the power bank limits. The biggest battery in our table, ORORO’s, is rated 35.4 Wh, well under 100. And a recalled warmer does not go anywhere but to a hazardous waste center.

Frequently Asked Questions

Are HotHands air-activated hand warmers recalled?

No. The HotHands recall covers only the electric rechargeable warmer, model H163650, white with orange, with the white HotHands logo. HotHands’ recall page says the recall does not involve any of its air-activated warmers.

Is the OCOOPA UT3 Pro recalled?

Not by model number. OCOOPA’s store lists the UT3 Pro under UT4102 item numbers, and UT4102 is not one of the seven models in CPSC notice 26-659. Check the underside of yours anyway, and email OCOOPA’s recall team if the number is worn off.

How long does a rechargeable hand warmer take to charge?

Zippo lists 3.45 hours for the HeatBank 9s, and ORORO says its Bay City battery fully charges in 4 hours on a 5V/3A charger. Zippo says the HeatBank 9s will not heat while it is plugged in.

Can I throw a recalled hand warmer in the trash?

No. CPSC says to keep it out of household trash, curbside recycling and store battery boxes, and to call your household hazardous waste center first to ask whether it takes defective lithium-ion batteries.

How hot do rechargeable hand warmers get?

Zippo lists an operating temperature up to 120°F for its HeatBank warmers, and Celestron lists a 113°F maximum for the ThermoCharge. ORORO’s page gives hours by setting but no temperature.

So here is my verdict. Flip every warmer in the house over before the first cold sit, and if the number is on that list, it is a paperweight with a refund attached. If you are buying, the HeatBank 9s is the pocket unit I would carry, and the ORORO muff is the one I would wear on the stand. Either way, your hands get warm and nobody’s coat catches fire, which is a BETTER season than most.

Sources: CPSC, “OCOOPA Direct Recalls 1.5 Million Rechargeable Hand Warmers” (recall 26-659); CPSC, “Gobi Heat Recalls Rechargeable Hand Warmers” (recall 27-009); CPSC, “Kobayashi Recalls Rechargeable Hand Warmers” (recall 27-011); OCOOPA, “Product Recalls”; Gobi Heat, “Rechargeable Hand Warmer Recall”; HotHands, “Recall Notice: Rechargeable Hand Warmers”; ORORO, “Bay City Heated Hand Warmer 2.0”; Zippo, “HeatBank 9s Rechargeable Hand Warmer”; Zippo, “Product Guide: HeatBank 9s”; Zippo, “HeatBank 6 Pro Rechargeable Hand Warmer”; Zippo, “HeatBank 6 Rechargeable Hand Warmer”; Celestron, “Celestron Elements ThermoCharge”; eCFR, “49 CFR 175.10, Exceptions for passengers, crewmembers, and air operators”.

James Nicholas

NFA Firearms Manufacturer & Professional Gunsmith The XDMAN has a talent for taking complex firearms subject matter and breaking it down into an easy-to-understand format that all experience levels can relate to. James is an 07/02 NFA Firearms Manufacturer, a Professional Gunsmith with over 20 years of experience, and a Firearms Writer, Photographer and Firearms Expert. Connect with him on Instagram, X, and Facebook as @therealxdman.

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