 is making a major effort to improve poor charger performance. They are not alone. EV charging companies have focused on improving charger performance over the past year as charging setbacks have hurt EV sales. A fifth of charging attempts failed at non-Tesla chargers in the first quarter of this year, according to J.D. Power. Meanwhile, Tesla superchargers, known as the most reliable, have only had a fail rate of 5%. Electrify America will update most of its more than 4,000 charging ports this year