US drivers considering ditching gasoline-powered cars are concerned that their batteries will drain quickly.

There are many electric-vehicle drivers in the US who have trouble finding charging stations, according to the report of market research companies highlights the challenge of building a nationwide charging network for electric vehicles.

According to the firm, one in five drivers were unable to charge their vehicle at a gasoline station during a visit. Seventy-two percent blamed faulty equipment for not charging their vehicles.

In President Joe Biden’s plan to reduce carbon emissions, a patchwork network of US charging stations threatens to slow the pace of electric-car sales. For many drivers considering ditching gasoline-powered vehicles, fear of drained batteries is a major barrier.

There are still challenges to EV adoption related to public charging, according to Brent Gruber, global automotive executive director for J.D. Power & Associates. “We need to ensure that those stations are reliable.

Biden signed an infrastructure law last year that dedicates $5 billion to building EV charging stations at 50-mile intervals along major travel corridors. However, the J.D. Despite those chargers, the survey by PlugShare and J.D. powered suggests they won’t be enough to convince skeptical buyers to go electric.

Tesla Inc.’s chargers, including its superchargers and slower destination chargers that are often found at hotels and restaurants, received the highest satisfaction ratings from respondents. In the report of market research in terms of satisfaction, ports deployed by Volta Inc. and ChargePoint Holdings Inc. ranked second and third, respectively, among the most common types of public chargers.