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Old 11-03-2015, 10:47 PM   #23 (permalink)
rmay635703
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Quote:
Originally Posted by RedDevil View Post
More like to make a cheap build work.
If you don't have a decent DC-DC converter but you do have an alternator, and it is still hooked up to the remaining parts of the original engine, and your range does not matter, why not?

It would just power the 12V bits, albeit at max 75% efficiency versus the 90% from the DC-DC converter.
It would thus eat into the range more than the DC-DC converter would.

You could also charge a separate battery for the 12V system and not use alternators or converters altogether. But then you'd have to watch both battery charge levels.
Alternator can be used for low level regenerative braking, there were setups that engaged it via the control wires during braking only used in conjunction with a 12v deepcycle.

You still have belt losses but an alternator can add cheap braking regen to a series wound setup.

Perpetual no, charging 12v battery yes.
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