With the increase in usage of lithium ion batteries there has been an increased focus on the relative safety of the technology. One of the largest impacts has been the safety during shipping (air, marine and by road transport) with many passenger flights now banning the transport of all lithium ion batteries. In additional there are continued safety concerns that arise during the warehousing and storage of a large number of cells in system manufacturer’s facilities awaiting assembly into systems. Finally there has been an increase in the operating voltages of many vehicle and grid systems with transportation systems as high as 700 volts and grid systems reaching greater than 1,100 volts, as the voltage of the system increases the risks and safety concerns associated with assembly of the systems significantly increases. This study examines the effect of reducing the terminal voltage of commercial 13 Ah lithium titanate cells to zero volts , well below the limits of traditional lithium ion batteries. [1,2] Prior to full cell testing, coin cells of lithium titanate versus lithium were manufactured to explore the behaviour of the lithium titanate under high voltage scenarios, as would be experienced by the electrode in a full cell stored at low voltages. The coin cells were characterized through cycling, storage and SEM imaging. Following the half-cell testing commercial full cells were stored in multi-month intervals over the course of one year to simulate storage in a manufacturer’s warehouse. Following each storage period the cells health and performance were characterized through a number of techniques including standard cycling at various rates, capacity checks, incremental capacity analysis of low rate voltage curves, pulse power capability and EIS measurements at various states of charge.A comparison to a set of control cells, stored under the same environmental conditions but at the manufacturers recommended voltages, is presented demonstrating that cells stored at zero volts suffer no appreciable change to capacity, cycling capability, voltage stability. Additionally it is shown that there has been no increase in impedance, high current rate performance for both charge and discharge remains unaffected, and no discernible damage has been done to the cell during long term storage. This work demonstrates that reducing a lithium titanate cell zero volts is a feasible method of storage and may provide a solution to increasing the safety of the cells in a number of scenarios. [1] H.-F. Li, J.-K. Gao, S.-L. Zhang, Effect of Overdischarge on Swelling and Recharge Performance of Lithium Ion Cells, Chinese J. Chem. 26 (2008) 1585–1588. doi:10.1002/cjoc.200890286. [2] H. Maleki, J.N. Howard, Effects of overdischarge on performance and thermal stability of a Li-ion cell, J. Power Sources. 160 (2006) 1395–1402. doi:10.1016/j.jpowsour.2006.03.043. Figure 1