> Meade wrote: > I wonder how hard it would be to rig up a motor / generator to > step-down from 24 vdc to12 vdc. Need a 24vdc motor, turning > about 1800 or 2400 RPM, probably you'd want at least 5 HP or > so. Couple that directly to an alternator from a car, and boom > you've got 13.5vdc. -------------
And low efficiency! A DC-DC converter would be _way_ more efficient and handle changing load better. If the loads are pretty constant you could power from each of the two 12 V batteries. The problem is that if the draw on the two batteries is different the charging is at 24 V the charge will be wrong for one - or both - of them. _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
