DESCRIPTION 8 Hours of Runtime Enjoy up to 8 hours of warmth thanks to the large battery capacity. Peace of Mind The circuit board goes through 12 rigorous testing procedures to ensure ultimate safety. Card-Sized Power The battery size is compact enough to offer you optimized fit without feeling bulky and annoying during wear. This battery is compatible with two types of ports: DC port and Type-C. SPECIFICATION Battery Parameters Product Model:NR2012 Nominal Capacity:20000mAh 3.85V/77Wh Input:Type-C 5V 4.5A/9V 3.8A/12V 2.9A/20V 1.75A MAX35W Output:DC 12V 2.5A Battery Type:Li-ion Battery Weight: 300g FITMENT Universal Fit