Got this as a gift and never used it. No instructions or other papers. It does work like new. We are retiring from the game and everything must go. Check out my store for other airsoft stuff. The Tenergy TB6B Multifunctional Balance Charger is a versatile unit designed to charge various types of batteries accurately and efficiently. With compatibility for lead acid batteries and support for Li-Po, NiMH, LiFePO4, and NiCd chemistries, this charger is suitable for a wide range of battery sizes. The USB connectivity makes it convenient for charging different devices, while the manufacturer warranty of 3 years ensures long-lasting quality and performance. This charger is an essential tool for maintaining the health and longevity of your batteries across various applications.