Update: This popular front-page deal is available again with a new promo code.
Beyyon via Amazon has
2-Pack BEYYON Electric Rechargeable Hand Warmers w/ 4 Heat Levels on sale for
$9.99 when you apply promo code
EMBYP4RG on the checkout page.
Shipping is free w/ Prime or on $35+ orders.
- Note: This promo code is valid for users with or without Prime membership, taking the final price to the same $9.99 price.
Thanks to Deal Hunter
babgaly for sharing this deal.
About this product:
- LED display and controls show battery, charging status, and 4 heat levels
- Fast USB-C charging fully charges in 3 hours and powers both units at once
- Instant heating warms in 2 seconds with 4 adjustable levels
- Magnetic 2-in-1 design lets two portable units connect for easy use
- Relieves cold-related pain and suits outdoor or winter use
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Features & Specs
Battery Description Lithium-Ion
Battery Capacity 4000 Milliamp Hours
Battery Charge Time 3 Hours
Reusability Rechargeable
Upper Temperature Rating 132 Degrees Fahrenheit
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https://www.amazon.com/dp/B0FPDKL67Z
$12.50 with code J7SLGVLE
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ETA: The one I linked is also higher capacity.
- One of the two had absolutely no charge on it. This is bad because lithium ion batteries do not like to be at 0% charge, that's the level that does the most damage to the battery. The other one seems fine.
- The warmers didn't come wrapped or in a bag, which almost all of these kinds of devices do.
- The above two points make me think that I got a used/returned unit.
- It only came with one single USB-C to USB-C cable. Others I have usually have a splitter that converts one USB port to two so that you can charge them both at the same time. Otherwise at least another cable would have been helpful.
- It only has two warmness levels, not three like almost all the others do.
- These use a color-based LED indicator. There are three LED, the first one tells you the charge level, based on the color (RGB), and the second two are for the warmth setting.
- They do not magnetically attach to each other (could be pro or con, see below).
In light of the above, there are several redeeming factors for these, IMO:- The physical build and size is very nice, better than the others I have.
- Because they to not magnetically attach to each other, each unit can warm on both sides, as opposed to the magnetically attached ones that get warm on only one side each. This makes it very nice to hold one each hand, and also to share with someone else.
- It charges using USB-C PD at 20W, as advertised (see attached photo).
- The warmth levels are good, even though there are only two of them.
- It has a capacity of 12000 mAh, substantially higher than most others.
- I have not tested, but given the size and weight, I can easily see how each can be 6000 mAh (for 12000 mAh total. I often worry about the claims that these "no name" Chinese brands make, but the specs here seem correct.
- Because they use USB-C PD, they can charge with almost any USB-C port and cable, as opposed to most others where to have to connect it to a "charge only" port (and sometimes only USB-A).
- Also because it has USB-C PD, if you use it as a charge bank to charge your phone, it can fast charge your phone up to 20W, which have confirmed via testing.
A note on the charging behavior of these: They're using the USB-C charging protocol that actively negotiates the charging speed and power with whatever it's connected to on the other side. Hence, if you connect this to another charging battery (or your laptop), for example, it may try to charge the other battery or your laptop, instead of the other way around. You might one one or the other, depending on the circumstance. For this reason, some laptops and phones have a way to reverse the charge flow so it charges the other way around (I know that most recent Android phones do). Ideally for charging this, just connect it to a fixed charging source like a wall-plug charger, although you can do it the other way too if you want (in general a battery charging another battery causes a huge drop in efficiency, so better to avoid if you can).A final note on charging, which is true for all USB-C PD charging devices: When it says it charges at 20W, it doesn't mean it charges at that rate continuously until it's full. Rather, these devices have a smart battery management chip that will vary the charge rate based on temperature, current charge level, etc. As the battery gets closer to full, it will charge more slowly. For the ones I linked to, it will charge at full 20W when it's close to empty until it's maybe 1/3 full. And then, it will stop charging for a few seconds and switch to a lower charge rate. This is normal (though not ideally implemented). Regardless, it does seem to live up to the claim of charging within 2-3 hours, which is impressive because this is how long other charge banks that are 1/3 the capacity take to charge, i.e. it's charging much faster than most other ones that are out there currently.
ETA: To me the pros far outweigh the cons, so I'm happy with this purchase, though it costs a little more than this deal.
ETA2: The ones I linked to seem to be now OOS, but hopefully the above is helpful for folks evaluating other options, or whenever the ones I linked to are back in stock again.
ETA3: Back in stock again lol.
omg ETA4: These are sold both individually and in pairs. Currently, the pair is the same price as a single unit.
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