Kepwam Self-Heating Coffee Mug T2, 16oz Electric Heated Mug Hot Up to 149℉

Updated review in 2026: Just shy of a year of purchase, I started having trouble with my cup. The lights would just flash and turn off instead of staying on and keeping warm. It didn’t work if my cup was full, and the battery was fully charged. I contacted the company here through Amazon (I couldn’t find any other way on any other site or email). After some troubleshooting back and forth, they sent me a whole new mug that is working perfectly. I’m not sure what will happen if this one also fails. But I’m glad to have a replacement at no extra cost. That’s good customer service! Also an update on my replacement lid from the 2025 review—that lid also broke eventually. I have a new lid on the new mug and we’ll see how long it lasts. It appears to be the same one. Original review in 2025: I love love love my mug! I’ve owned it for about 7 months now and I use it daily all day long. I put it on the charger at night and it lasts me on low for the whole next day until about 5-6pm. The low setting is perfect for my coffee, personally. I do mew the lid on full time and I think that helps with temp control and battery longevity. My mom has the same mug and she keeps the lid off. Her battery lasts less time and she has to keep it on the medium setting. So if you’re having less performance than you’d like, try keeping the lid on. I like the purple color the most, though I would have preferred green or blue. However, I don’t like the “dusty” shade look of the colors. The touch buttons are perfect I think because they are actual buttons you have to push yet there aren’t any cracks for liquid to get inside. I don’t have to worry about accidentally hitting a touch screen button either. I only have two small complaints: 1) The lid broke the first time I tried to remove the black slider to clean it. Now it’s too loose and the slides closed on me when I try to drink. I ordered a replacement lid and it’s been ok so far, a few cleanings in, but it’s loosening as well and sometimes slides closed on me. I’m not keen on buying another lid that is both difficult to clean AND prone to breaking. 2) The wide shape of the cup means it doesn’t fit in any of the car cup holders. I’ve taken it in the car on many occasions and I have to set it inside my console, where it has spilled a time or two. It does fit inside my mom’s Honda pilot cup holders, however. Overall, I still absolutely love this cup and it has been a game changer for actually finishing a cup of coffee before it gets cold! Perfect for a busy homeschooling mom of 3. Best Mother’s Day gift ever!

Even though I only have one cup of coffee each morning, I want it piping hot. I did not want to have to microwave it to keep it at my preferred temperature. I found my solution by purchasing the 20 ounce version of this mug. I can take my time in the morning and really enjoy my coffee now. I appreciate the large size and find it to be a comfortable fit in my hand. The outside stays cool while the magic happens on the inside. I found the battery life to be great. Upon opening the box, I noted it was already partially charged. It doesn’t take long to fully charge and I have found I can go 3 to 4 mornings prior to recharging it. The included lid probably helps it maintain the preferred temperature. Upon filling the cup, it only takes one press of the side button to turn it on to the highest setting. I have used a competitor’s brand that pairs with Bluetooth on an app, but did not like occasionally having to go through the process again to “recognize” my cup. They also did not offer such a large size mug. I’m very pleased with this purchase!

I like this cup because it does keep my coffee and tea hot...albeit at the highest setting. My definition of hot is the same as how the coffee comes out of the carafe, freshly made as well as the hot water for my tea. That temp is the same as the highest setting. It also helps to keep it hot with the lid that comes with it. Speaking of the lid, my concern is how it "burns". If you put a hairdryer on high and put it close to plastic, it will warp it and if it doesn't, it will definitely burn it. You will see the surface scar with burn bumps, if you will. That means the plastic is not high temp safe = plastic in your hot cup of coffee or tea. This explains the taste I had on my first night with hot tea. It tasted funny and I played it off as it's first burn. This morning I clean the lid after my coffee and notice the part of the lid is still clear, but the other side and middle has scuff marks because it's no longer clear, but cloudy. I can feel a texture that the clear side does not have and that is clearly plastic burning from the heat. I included two pictures to show the new "frosted" look of the lid. The darker one has a clear area that you may see the texture of the tray that it is on. I took a third picture where you can see through the lid in that same area to the mousepad underneath, while the other areas are burned or scarred. Please note that this lid used to be clear and see through. I will not be using this lid and may send this entire thing back because that is not good at all. That is low quality plastic that I most likely ingested while drinking my hot beverage. The bottom of the cup also shows some anomaly that shouldn't be there, almost as if it was also burned. In the picture, the bottom of the cup has a new texture that wasn't there before. I checked this cup to see if there were anything odd about it as a new cup and there was nothing to note. The bottom of the cup was as smooth as the sides of the bottom are. Note that the center of the bottom is thinner than the other area. You can push down and feel it give. Tap the middle, then tap the sides of the bottom and you can hear a hollow sound in the middle and you can hear it become more solid and sturdy closer towards the sides. The paint and how it is applied may not be as quality as it looks. I'm returning this. I have other metal mugs with clear plastic lids that have not done this in the years that I have had them. Enter this item and the lid burns along with the paint on the bottom of the cup where the heating element is.

This was the second one I bought. It was a gift for my mom, purchased because I love mine. She loves it as much as I love mine. She doesn't get around very well, and with this totally reliable mug, she doesn't have to sit and drink cold coffee just to avoid trying to get up and go heat it. Also, the person who lives with her to help her out loves it, because they know she doesn't like cold coffee, and now they no longer have to keep checking whether they need to warm it up for her. I would give these mugs a 7 out of 5 rating if I could. There are fancier, more expensive ones, with app controls, but this mug offers three temperatures, works reliably, and gives you hours on a charge, which is all most of us need. My mom and I both run it on the lowest setting most of the time, but the higher levels are great for outdoors on a cold day, or -- because I live alone and often use instant expresso -- dumping the instant powder into warm tap water on the way to a meeting and letting the mug heat it up as a time-saver.

This is the coffee mug that I have elected to keep for now. I have tried several heated coffee mugs, and this is my attempt at comparison in descending order of price: EMBER PROS: - Best looking and best feeling mug. It's like drinking from a quality ceramic mug. - Large range of temperature settings for your perfect temperature brew. CONS: - My worst problem was the lack of durability of the finish. My white one stained badly, and the two black ones had the interior finish wear off despite great care and the use of silicone spoons bought expressly for that purpose. - Requires an app to check battery and set temperature. This was not a problem for me, but occasionally the mug would lose connectivity and need to be reset - a bit of a pain. - It comes in 10 ounce and 14 ounce sizes, a little too small imo. 15-16 ounces is my preferred size. - Most expensive of the self-heating mugs, but despite the price tag, I would probably use an Ember mug if it were more durable. HAPPINESS PROS: - Comes in 16 ounce and other sizes with several colors to choose from. - Less expensive than the Ember. - Has an app but it is not required to use the mug. There's a button that's easy to use and an LED display that shows battery life and temperature. - A wide range of temperatures can be selected. - I can't speak as to durability, because I decided not to keep it. One big CON: - It has a cheap feel. The rim is thin and "plasticky" feeling, so drinking out of it is not as pleasurable to me as drinking out of the Ember. Unfortunately, this was a dealbreaker for me. KEPWAM This is the one that I have elected to keep for now until my "perfect" mug is available. PROS: - Good price - Comes in a 16oz and other sizes with several colors to choose from. - I was initially concerned that there were only three preset temperature options. I thought that my preferred temperature would be between medium and high, but as it turns out the high temperature is fine for me. CONS (or still not sure): - As others have mentioned, the handle is too thin and not comfortable to hold. I decided this was less problematic than my issues with the other mugs, but it would have been so easy to make a comfortable handle. I found a silicone pot handle cover that makes the handle a bit better (see photographs), but it is still not ideal. - No option for an app, but this might be a desirable feature for some. It is certainly easy to operate the mug with the button. - The temperature does not always seem to hold steady, particularly if I haven't taken a sip for a couple of minutes. I'm not sure if that would be the case if I kept it on the charging plate. - I'm not sure how well it will hold up, but for the price I'm willing to take a chance.

I wanted to give this mug a fair shot before writing a review—several uses in, and I can confidently say it’s a winner. This temperature control mug does exactly what it claims to do: it keeps coffee hot (not just warm) from the first sip to nearly the last. The mug is easy to use, with one intuitive button and a clear indicator light showing three heat settings: warm, hot, and “piping.” I prefer my coffee piping, and the high setting keeps it at just the right temperature for me. Battery life has been solid—up to 2.5 hours as advertised—and the five blue indicator lights make it easy to track remaining charge. Of course, using the higher heat setting drains the battery a bit faster, but that’s expected. One standout feature is the included charging base. When I’m at my desk, I keep the mug on the base while sipping, which helps preserve battery life. The base has two raised contact points that align with the inset conductor rings on the mug's bottom, so there’s nothing to plug in—just set it down and go. Simple and effective. There’s also an auto-off feature that detects when the mug is empty. While I haven’t tested it deliberately, I’ve noticed the last sip is sometimes cooler, which makes me think the mug powers down before it’s completely empty—a smart safety feature, especially if you’re forgetful or distracted (no one wants melted plastic or worse!). The mug holds a standard 8-ounce pour comfortably, even with room for cream—though I drink mine black and untainted. It also does a great job maintaining heat even without the lid, though I imagine it retains heat even better with it on. Bottom line: this mug offers excellent usability and functionality at a significantly lower price point than some of the better-known competitors. If anything changes down the road, I’ll update my review—but as of now, this is a fantastic value and a great buy.

** Edit 4/20/26: Use the mug pretty much every day. Heat water, add it to the mug and then steep some tea. Now, the underside does get a little wet from time to time and each time I pout water into it, I wipe down the bottom. Despite that, I recently had this happen to the base. This does not instill confidence in it's design. Even the bottom of the base deformed ever so slightly. Been using the mug for about a week so I can't speak for longevity (sometimes cheaper items look great but then just stop working after a short time). The entire mug does feel premium (except see below). I also really like that you can turn it on and set it on the charger and it would stay hot all day. However, you can even just pick it up and the internal battery will continue to keep your beverage hot. So you could have it at your desk and just take it into a meeting and it would stay hot all of the time. There are 3 heat settings. I leave mine on the highest and my tea stays just the right temp... hot but just under being too hot (plenty hot?). I took one star off mainly just for 3 design issues I think could be better: The handle is a little thin so it does not feel great. It works and is not bad but if it were a little thicker it would feel better. The other issue is the color of the interior. It should be white or at least a much lighter color. I drink tea and I think it is more of an issue for tea drinking. You cannot see the darkness of the brew because the interior is too dark. They also don't make a white colored mug and this would solve that issue. The last issue is a bit bigger (pun intended). I bought the 12 ounce mug. Now it will hold 12 ounces but only if you fill it to the very top and then the lid cannot be used. So I'd say it is not really 12 ounces more like 10-11.

I am going to write an honest review for others before returning this mug. Here are my thoughts: 1. It is a durable plastic so it won't shatter if dropped. Because it's not metal, it won't taste like metal coffee as a normal double wall insulated travel mug will. However, because it's not ceramic, it won't taste like a regular cup of coffee greeting your lips each morning. And because of its design, the coffee literally scorches my tongue daily if I try to drink it right after pouring it. I am not sure why this happens, as it's not even on at that point and it doesn't happen when I sip a regular cup of hot coffee. I think it has to do with the thin lip of the mug and how much coffee goes into your mouth with each sip. 2. The design is not for travel. It does not fit into any cup holder in the car and has CONSTANTLY been spilling all over my car. This is mainly why I am returning it. It has the travel lid but a horrible design for travel. 3. It only stays hot for 3-4 hours with the lid on medium heat. I am moving around constantly and wanted something like this to keep my coffee hot all day (or at least all morning), but it seems to constantly be falling short and dying, leaving my coffee cold. If you like a midday coffee when you're out, this will not work all day. 4. The price - I could deal with the short battery life if, like a cheap vacuum, I paid a cheap price tag for it. But I got it on sale for $60! It is entirely overpriced for what it offers. I hope this helps someone!

Ganz einfach gut

It is very nice and does the job well.

Brilliant project does wheat says keep your drink warm only one problem can’t charge it as I live in the UK and you sent me an American plug

Great product, I already bought 3 mugs and I'm happy with them so far.

Don’t buy it. It was washed by hand by my self and After only two months does not work anymore. Support is unreachable, impossible to talk to someone to tell my problem, talk to the seller is impossible. Please don’t waste your money with this mug .