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I agree. In the end, Ohm's Law decides what happening. An alternator provides a max of ~35 volts AC, 3 phase. It gets rectified and controlled to maintain 14+ volts with engine running and loads drawing current. Stationary, there's only a slight draw by the body controller for monitoring and security. A tender will electronically sense what's required and supply only the current needed to maintain the correct voltage, (engine off, 12.5- 12.8v). Compared to a basic battery charger that will try to pump out 16-18 volts of 60 cycle pulsing DC. Which peaks at over 20 v.

[QUOTE="Hanko_, post: 292320, member: 6201"] I agree. In the end, Ohm's Law decides what happening. An alternator provides a max of ~35 volts AC, 3 phase. It gets rectified and controlled to maintain 14+ volts with engine running and loads drawing current. Stationary, there's only a slight draw by the body controller for monitoring and security. A tender will electronically sense what's required and supply only the current needed to maintain the correct voltage, (engine off, 12.5- 12.8v). Compared to a basic battery charger that will try to pump out 16-18 volts of 60 cycle pulsing DC. Which peaks at over 20 v. [/QUOTE]

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