Insulin Cooler Case Portable Insulin Refrigerator with Temperature LED Display Screen Keeping Cooling 35℉ ~ 46 F, Insulin Fridge with Handle & Alarm USB Chargerable (White)

The refrigerator is good, the battery lasts at least 5 hours.

Horrible Product. I bought this for a two-month long trip to Europe that consisted of 2 weeks on a cruise ship, 4 weeks traveling around different parts of Europe by air, car and train, and 2 more weeks on a cruise ship. I set it up at my home for a few days before we left to check temperature. It worked okay at first. When it was plugged into the wall, the temp would stay about 2-4 degrees warmer than I set the temperature to according to an actual freezer thermometer I put inside. It was within the temp my medication needed to stay at even running a little warm, so I just went with it. While I was testing it, I used battery only power one time to gauge how long the battery power would last and how long it took to charge them back up after they died. It lasted for about 5 hours and took about 10 for them to recharge. Otherwise, I disconnected the batteries and used only plug power since that would be what I was using when on the cruise and at hotels. I only needed the battery for travel from one place to another via air, train, or car. The entire first two weeks of the cruise we didn't connect the batteries at all as it was plugged into the outlet. We connected the batteries when we got to Spain and had to travel by air to Ireland. Using the battery, it ran 6 degrees warmer than set temperature, but still within acceptable range, and the batteries died in about 4 1/2 hours. I tried to use the batteries in the car each day we were traveling by car around Ireland, but by day 4, the batteries were completely dead. I had to resort to plugging it into the power bank that I use to charge my iPad and phone and then plug the power bank into the USB charger in the car just to have enough power to keep it running while we were on the road for 2-3 hours traveling from one hotel to another. There is no way this is worth the money they charge for it when the batteries do not last even a week. Unfortunately, because I was in Europe, there wasn't any way for me to return it within the 30-day return period or I definitely would have.

It works fine and keeps the temperature stable to within 1°C. However, it's certainly not silent while cooling, as the fan starts running intermittently.

For something designed to protect temperature-sensitive medication, I expected better insulation and an accurate temperature gauge. While it's better than similar sized coolers, the HYUNLAI cooler falls short of being the reliable medical accessory it markets itself as. The higher than expected noise level wasn't as irritating as not being able to rely on the temperature display, even while sitting on the counter inside a temperature controlled environment like the bathroom. This cooler might serve your needs, but I'd recommend looking elsewhere for truly dependable protection if you don't want to be replacing it soon. If you are spending this kind of money and want true value for your money, this isn't it. This was never used outside the house and it only lasted 9-10 months before I ended up just throwing it out vs. trying to figure out why yet again it was not working.

Works great. Fast delivery

The cooler is fine, the power brick it ships with is the cheapest ac to USB-DC converter I’ve ever seen. It died after 6 months, using a spare one I had laying around the house to keep this thing going. Lost $400 of medicine due to this issue. If you buy this, throw away the power converter it ships with, pure junk. Update: even with a new power supply the whole thing is dead now. Don’t buy this.

I was hoping this cooler would be worth the money for long flights. The dual batteries allow only for 6-8 hours max. I recharged the internal set and pulled in a 100Wh external battery that I use for my CPAP and together it last for 19 hours. My trips to SE Asia usually require about 30 hours or more. After considering the size of the external batteries that I would need for running this refrigerator for 30 hours, I decided to return it. It held 5 pens of Mounjaro quite well, but would still need another 3 pen cooler to carry all 8 pens I needed for a two month trip. I tests one of the 3 pen cases with the liquid to supplement this unit and it lasted over 30 hours, so for a little more money I got 3 of those cases and returned this cooler. It will be much easier with 3 smaller cases than dealing with batteries or finding USB outlets that provide enough current while traveling.

Used it on a 6 hour trip in my truck. Kept my three Mounjaro insulin pins at correct temp and safe from damage. I even put a digital thermometer to track the temperatures. It worked great.