ororo Battery 
Featuring an upgraded design with rounded corners that makes the battery more comfortable in your pocket. Take advantage of a faster preheating time by using the only battery specifically designed for all ororo heated apparel.
Longer Battery Life and USB Type-C Charging
Enjoy up to 10 hours of long-lasting warmth (3 hrs on high, 6 hrs on medium, 10 hrs on low heating setting) thanks to the increased capacity of the 5200 mAh, which delivers performance equal to market-leading 10,000mah @3.7V with higher efficiency and power output up to 7.4V. Charge your iPhone 11 up to 2X. Get the same performance and capacity in a smaller easier to carry form factor.
Extended Heating Time
Stay warm and enjoy more time outdoors by taking this along as an additional battery pack.
Certified Safe
UL & CE certified. Rechargeable up to 800 times. 12-month warranty included. We won't leave you alone in the cold.