Review on 🚗 Stay Warm and Refreshed on the Road with the Sunsbell Car Kettle Boiler 750ml Stainless Steel Mug + DC 12V Charger - Perfect Car Travel Cup Warmer! by Jen Johnson

.** Update February 2019 - I've used it about 25 times in the last year. No problem. I love it and would buy it again. **It does NOT hold 750ml. With screw cap, it holds a maximum of 630ml (21.3 oz). Shame on Sunsbell for being so ignorant of what they are selling. Overestimate power by 19%. Also, it seems to be working as advertised. It looks well designed and well made. It's a double wall construction but with poor insulation. It's getting hot outside. At its hottest, it won't burn you, but you can't touch it for more than a second or two. Wasted heat unless you make some sort of insulated holder. Diameter is approximately as advertised (3.42" 86.8mm. Not 3.3" 85mm). My car socket supports 20 amps (240 watts). I wish someone would do 200+ watts. Model that heats up faster. PROS: - Looks and feels high quality - Status display and auto shut off are handy OK: - Heating time for 600ml of hot water near boiling point 45 minutes (it doesn't come to a full boil) - About 22 minutes to heat 500ml Water at 160º (with homemade foam insulation around the pot) - 12 month guarantee CONS: - Capacity only 630ml not 750ml - Poor insulation - Instructions for use Very poor English. 90% understand. Give up 10%. Comments and questions are welcome.