UK startup Allye (pronounced like ally), has put spent batteries from electric vehicles (EV) back into use and built a 400 kW fast charger from them. The approach lets sites deliver fast charging to cars without requiring a grid upgrade to accommodate new charger installations.

The EV industry is delivering on its promise of longer-range cars and a charging infrastructure owners can rely on. However, there is a bigger problem that we will soon face, one where a large number of EV batteries will come to their end of life. These spent batteries may not be suitable for a car but definitely have enough juice in them that does not warrant them being destroyed.

London-based Allye has found the right solution to this problem. Using spent EV batteries to charge other EVs. The biggest advantage of this approach is that such chargers can be installed in any location and use their existing electricity supply to offer charging services. This avoid high upfront costs for a connection upgrade to the grid to install a new EV charging service.

The rollout for EV charging for large fleets is painstakingly slow. The common hurdle in the process is lack of grid capacity that can handle a large number of chargers at once. Allye, however, argues that what charging stations lack is not energy but power to deliver it.

Once range anxiety was addressed, users also wanted their EVs to be quick to refuel like their gasoline-powered counterparts. It is perfectly okay if the car needs the whole night to charge at home, but when you are on the road, chargers can’t take hours to get your vehicle ready.

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