Deep Cycle Battery Charging From Alternator
Hello, May I ask for advice regarding charging deep cycle batteries from the alternator? I have read older threads, and understand opinions vary. The previous two 100Ah deep cycle AGM coach bat...
Forum Discussion
MEXICOWANDERER wrote:
The gentleman that demonstrated max observed voltage as never reaching 30 volts. Well guess what, power avalanche rectifiers are rated 28-32 volts. And no way in hell is an automobile rotor coil as large an inductor as a five pound starter motor armature.
Yes but a starter motor has something a alternator doesn't, a large solenoid that breaks the circuit. Also an alternator has something a starter doesn't, a large ICE driving it.
How are you going to get a large spike from the starter motor through an open solenoid? Same with the solenoid coil as its cut by the ignition switch or starter relay.
Again might get some arcing and small spike as the solenoid opens but otherwise how is it going to complete the circuit? Put your finger on the wire from solenoid to starter, yeah you complete the circuit whoopee.
Disconnect the battery with the alternator going full blast and the entire cars electrical system is the load dump from the engine driven alternator output for half a second.
