Battery & Charger

Is a battery included in my purchase?

Where is the charger?

My charger lost. How do I buy the replacement charger?

I have a 5V battery. Can I use it to power the 7.4 heated vests?

The 7500mah battery has two output ports. Can l use the 5V and 7.4V mode together?

Does it shut off automatically if it overheats? Any safety certifications (UL, CE, etc.)?

Why does the battery display turn off while I'm using it? Is it factory defective?

(2025 version) What are the DC /USB-A and USB-C port of the battery used for?

Can I turn on the battery by pressing the button without unplugging the device?