Hilong is an advanced technology company specialized in the research and production of Lithium Polymer battery, Ni-MH battery and LiFePO4 battery , our batteries are widely used in all RC hobbies, airsoft gun, drones, electric tools, lightings, vacuum cleaner, medical device etc. With over 19 years of experience and thousands of custom battery designs, we are uniquely qualified to design the highest quality battery pack for your application. We understand our customers\' operational, regulatory, environmental requirements and will design batteries that take these factors into account. Working with Hilong, you will have a partner who can help develop the right solution as we have the professional technical team and can provide the proper battery solutions for what you need. Working with Hilong will be your wise choice.