Convert power supply to battery charger - Eleccircuit.com
Using a Switching Power Supply for Battery Charging - Power Supplies (off-board) - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key
Can I use my 19.5V laptop charger to charge a dead 12V car battery? - Quora
PL6100 12 Volt 100A Flashing Power Supply and 60/40/10A Battery Charger