Dongguan Lanting Technology Co. Ltd. is a company specializing in the production and sales of high-quality batteries, we are committed to the research and development and production of 18650 batteries 21700 batteries, 32700 Lifepo4 batteries large cell 3.2V Prismatic Lifepo4 batteries, we strictly implement each An inspection step including visual,short circuit quality inspection/ electrical inspection responsibility test, etc. Our battery product models are complete which can ensure that your supply is stable and sufficient. We have an excellent R,D team strict production system and quality inspection system, well-trained engineers and staff will answer your inquiries within 8 hours and help you solve any product problems patiently and sincerely. Any details of the product size( material etc., can be customized or changed according to your unique requirements.br