Walmart offers the PowerA DualShock 4 Controller Charging Station for $13.77. (Amazon charges the same with free shipping for Prime members.) Opt for site-to-store pickup to dodge the $4.97 shipping charge. That's the lowest outright price we've seen and a current low by $9, although it was $4 less after a gift card last month. This station charges two controllers at once and includes an AC adapter.