“The plug for the battery is like a mini RCA plug so you can’t use a regular USB battery you need to buy a $10 adapter from Amazon. That’s really annoying. The vest turns on and turns off with ease but I can’t tell if it’s on like I don’t feel any heat so maybe I just got a bad vest”
Hi David, thank you for sharing your feedback. This product needs to be used with a compatible ororo battery to activate the heating function. We recommend pairing it with the MINI 5K Battery or PD 5K Battery for the best experience. You can find our compatible battery options here:
https://www.ororowear.com/products/mini-5k-battery-4800-mah?variant=40464336519350
https://www.ororowear.com/products/pd-5k-battery
If you need help choosing a battery, please feel free to contact us at support@ororowear.com.