1 lithium Heated Clothing Battery for kneelet 2 Voltage:7.4v 3Capacity ... 30 working days. Shipment by Express, SEA, AIRFeature1.External battery for heated clothing, trousers, gloves, hat, shoes, kneelet, ... 2A 4.Polymer battery voltage:DC 7.4V/4400mAh 5.Output power:15W(MAX) III.Battery charge 1.The ... Y-shape charger can charge 1or 2polymer battery ...