PSG2 13,8V/20A Enclosed buffer switch mode power supply unit Grade 2 - PSG2-12V20A
Another power supply 13.8V 20A
High Current 12V-13.8V at 30A,25A,20A,15A Power Supply - Elec Circuit
AT-PS26 13.8V 26A amp Heavy Duty DC Regulated Power Supply Grade with Cable New | eBay
Amazon.com: Cllena DC 8V-40V to 13.8V 20A Automatic Buck Boost Converter Step Down/Up Regulator Voltage Reducer Converter Waterproof Regulated DC Power Supply for Golf Cart Club Car LED Light : Electronics
AC 380V Input Switching Power Supply Output DC 13.8V - China LED Power Supply, DC Power Supply | Made-in-China.com