In many regions of the world the on-grid power supply is unreliable, suffering frequent power outages every day. This means frequent recharging, severely shortening battery life. To minimize the impact of outages or use of diesel generators it is crucial to recharge batteries as quickly as possible – you never know when the next outage will be. At the same time, the cyclability of the battery needs to be exceptional, as the number of charging cycles will be greatly increased when the grid goes down.