Received as present. Batteries won't charge up. Tried using 15 watt then 30 watt then even 45 watt charger to no avail. All I get is 45 minutes of solid red light on the charging unit and then a blinking green and red light. Batteries have NEVER charged up for me. Never here back from the company. They only have a 30 day return policy, which means if you get these in July as a present, you BETTER check them out ASAP..... It appears from Amazon complaints that a lot of people have battery problems with these. Also, the fact it's almost impossible to find the model my batteries are, UG-22DW, I am thinking they are shipping these gloves with batteries that have been in storage for months, maybe years.