Home Make 12V to 36V Battery Charger | Simple Circuit With Ne555 - YouTube
36 Volt Series Trolling Motor Connection Kit with On-board Charging (RCE36VBCHK) Lithium Compatible | Connect-Ease. Get Connected Connect all your marine equipment with ease.
Many circuits: INVERTER BATTERY CHARGER CIRCUIT
batteries - Lithium 72V (2x 36V series) charging with double 36V charger for ebike project - Electrical Engineering Stack Exchange