LTO66160F /35Ah Lithium Titanate Power Cell This cell is of cylindrical lithium titanate cell which is composed of negative and positive electrode, separator, You may like our active balancer with bluetooth APP function to see the battery cells voltage data and balance the LTO battery cells extend the cycle life. This is highly recommended by our customers who used it for solar storage and electric car application: Below you also can buy our smart BMS to fit for the LTO