3.7V 3900mAh 14watt-hour Lithium-ion battery **Due to IATA Dangerous Goods Regulations this product may not be available to all areas. An additional $90 for US Domestic Air shipments (specific fee may vary for Hawaii and Alaska) or $142 for International Shipments that include this product will be invoiced at the time of order. Product will be shipped once payment for the Hazardous Materials fee has been processed.