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Inside Schumacher 12v Charger - Printable Version +- Electric Boat Forum (http://www.electric-boat-forum.com/forum) +-- Forum: Electric Boat Forums (http://www.electric-boat-forum.com/forum/forumdisplay.php?fid=1) +--- Forum: Technical Topics - Batteries, Chargers, Motors, Controllers (http://www.electric-boat-forum.com/forum/forumdisplay.php?fid=4) +--- Thread: Inside Schumacher 12v Charger (/showthread.php?tid=8) |
Inside Schumacher 12v Charger - jackb - 12-21-2014 Thought it would be interesting to show the inside of a brand-name Schumacher 6v-12v charger. Here is the charger: [attachment=30] Here is the inside: [attachment=31] You will see that this charger is really nothing more than a transformer. It has a 6v-12v-6v switch that selects which 120vac winding is used. The output winding goes to a rectifier, that connects to a resettable fuse. I would guess the rectifier is a single diode, so the output is only a half-wave. It doesn't have any capacitor at all, so the DC output is going to have pretty massive ripple in the output voltage and current. This charger barely works for a lead-acid battery. For a Lithium battery? Almost assured death. |