I’ve been a runner, cyclist, triathlete and general outdoors type for decades, and I’ve made use of GPS tracking ever since it became affordable. Recently GPS enabled smart phones have made tracking my run routes trivial. I bought my first GPS enabled phone, an iPhone 3GS, in 2009. Back then using a tracking App would chew up 80% of the phones battery in less than two hours. I’m now the proud owner of an iPhone6. The other day I ran for four and a half hours, and only used up 20% of its battery. How come? What accounts for a nine fold increase in battery life?
True, the battery capacity has increased by about 50% in that period, but that’s obviously not the whole story. The big change has been improved battery management, with Apple putting a huge amount of effort into improving device efficiency. The device’s processor requires far less current to perform the same tasks as five years ago. Some tasks, like tracking, are now the responsibility of dedicated hardware. The operating system reorders and schedules its tasks to make most efficient use of the energy available. Together all these small improvements add up to huge gains.
Dukosi is taking a similar approach with EV battery management system optimisation. It’s not enough to just ensure the battery is charged and discharged safely, we have to optimise the way in which the energy in the battery is managed and used to squeeze every last kilometre out of the battery, and shave every last second off the charging time. I think a nine times improvement may be beyond even our battery management system technology though.