Dual purpose marine lithium batteries now becoming available to replace two 8D wet acid batteries. Will have cranking and house capabilities without lead acid battery needed. To protect marine engine alternators when under way is there a Victron dc to dc charger that will work with only two li batte…

The Orion DC to DC should have a lead acid buffer battery to dampen down the response of the alternator regulator. Some people have reported voltage cycling without a battery and it is not recommended. You might be lucky but might not. Some companies sell alternator to battery chargers for use witho…

Which Victron dc to dc charger would do the best job with only li batteries in my boat’s 12v system?

Ok. Orion 50amp and set to approximately 50% of alternator amp output. Would it be safe to monitor system w/o a lead acid battery to see what happens in the first spring boat trip…a 2 to 3 hour cruise with a return to home base the next day? I could leave AC charger off over night when on marina 110…

Yes I think an Orion xs set to half alternators rated output and monitor for temperature and voltage fluctuations. That’s probably your best bet to make this work without a battery on the alternator side. It’s unfortunate at this day and age that nobody seems to offer an alternator that would be s…

All lithium batteries including starting battery?

How long of a life span do you get out of alternators in this configuration? We run leece Neville alternators on a lot of equipment with lead acid batteries and they tend to fail within a year if they are running near full load for any lengths of time (mostly high intensity led lighting being the i…

Ludo, could you tell me what dc to dc charger you are using?

Thank you. That is awesome. Do you believe it has anything to do with the type of engine alternator?

Dc to Dc charger with 2 lithium start/house batteries

DIY

Missyisthe1st (Wayne Wilkes) 1 April 2025 19:05 17

Ludo, your first comment post said “if you don’t tell them”. What do yo mean by thst?

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Dc to Dc charger with 2 lithium start/house batteries

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